2026-02-22T10:46:03Z

Stormwatch: /* Panasonic Jungle */

{{WIP}}
{{Placeholder Section}}
'''Prototype consoles''' are consoles that have had a physical build made but for some reason not been released, Such as lack of faith in the console being successful or disagreements within the company/companies.
Some prototypes do (highly likely without permission from the developers) get sold to collectors, the exact relationship between the seller and the company is generally unknown.

=Handheld prototypes=
==Atari Cosmos==
:''[[wikipedia:Atari Cosmos|Wikipedia: Cosmos]]''
The '''Cosmos''' was a portable / tabletop console by Atari. Like many early handhelds, it was a simplistic hardware with a LED-based display; but it superimposes a two-layer holographic image to produce a 3D effect. It was shown at the 1981 New York Toy Fair, but reactions were mostly negative, so it was cancelled.

==Ericsson Red Jade==
:''[[wikipedia:Red Jade|Wikipedia: Red Jade]]''
The '''Red Jade''' was a handheld/PDA by Swedish telecom giant Ericsson, slated for a late 2002 release. It was cancelled amid corporate restructuring and mass firings, as the company was experiencing poor financial results in 2001.

==GamePark XGP==
:''[[wikipedia:XGP|Wikipedia: XGP]]''
The '''XGP''' was a South Korean handheld by GamePark, the successor to their [[GP32 emulators|GP32]]. Cancelled due to the company's bankruptcy in 2007.

==MoMA Eve==
:''[[wikipedia:MoMA Eve|Wikipedia: MoMA Eve]]''
The '''MoMA Eve''' was a handheld PC designed by startup Ministry of Mobile Affairs and produced by VIA Technologies. It ran Windows XP embedded. It was presented at the 2004 E3, but was never released.

==Philips In2it==
The '''In2it''' (codename "Kidcom") was an early tablet device produced by Philips, aimed at young girls. It had a monochrome touch screen, infrared communications, and a smart card reader. Anything from 100 to 1000 units were produced, but ultimately the company decided the product was not viable and cancelled it.

* [http://videogamekraken.com/philips-in2it The Video Game Kraken]
* [https://www.computinghistory.org.uk/det/66854/Philips-in2It/ Centre for Computing History]

==Panasonic Jungle==
:''[[wikipedia:Jungle (console)|Wikipedia: Jungle]]''
The '''Jungle''' was a palmtop computer / handheld by Japanese electronics giant Panasonic, aimed at people who wanted to play MMOs on the go. Powered by an Nvidia Tegra SoC. Slated for a mid-2011 release, cancellation announced in early 2011.

=Home console prototypes=
==RDI Halcyon==
{{Infobox console
|title = RDI Halcyon
|logo = RDI Halcyon.png
|logowidth = 160px
|developer = RDI Video Systems
|type = [[:Category:Home consoles|Home video game console]]
|generation = [[:Category:Third-generation video game consoles|Third generation]]
|release = 1985 (planned)
|emulated = {{✗}}
}}
:''[[wikipedia:Halcyon (console)|Wikipedia: Halcyon]]''
The '''Halcyon''' is a [[LaserDisc]]-based, third-generation home video game console produced by RDI Video Systems.

The System was planned to be released in January 1985, priced at {{Inflation|USD|2500|1985}}. This makes it the most expensive console of all time. However, investors got cold feet and pulled the money; RDI produced less than a dozen prototype units before closing their doors. Surprisingly, it seems that [https://www.newspapers.com/image/401578341/ some units ''were'' sold] at now-defunct electronics shop Beverly Stereo in Los Angeles.

Only two games for the Halcyon were completed: ''Raiders vs. Chargers'' (released in arcades by Bally Midway as ''NFL Football''), and ''Thayer's Quest'' (released in arcades by RDI, then ported to other systems by Interplay as ''Kingdom: The Far Reaches'').

:Also see [[Home media players#Emulators]] section.

==Atari Game Brain==
:''[[wikipedia:Atari Game Brain|Wikipedia: Atari Game Brain]]''
The '''Game Brain''' was a low-cost game console by Atari, slated for a 1978 release. The console itself was little more than a shell, with the hardware contained in each cartridge doing the actual processing. This was never intended to be a major seller, but a way to clear CPUs from unsold dedicated consoles. It was poorly received at the 1978 CES due to being terribly outdated, so it was cancelled.

==Atari Panther==
:''[[wikipedia:Atari_Panther|Wikipedia: Atari Panther]]''
The '''Panther''' was a system developed by the Atari Corporation, slated for a 1991 release.

At the same time, the team was working on its planned successor, the [[Atari Jaguar emulators|Jaguar]]. As the system was found to have bugs that would have been costly to correct, and the Jaguar design progressed faster than expected, Atari decided to skip the Panther.

While it was never completed, there are various prototypes in the wild.

===Resources===
* [https://ctrl-alt-rees.com/atari-panther-cancelled-prototype-console-everything-you-ever-wanted-to-know ctrl.alt.rees: The Panther - Atari's Cancelled Console]

==Atari Jaguar Duo==
:''[[wikipedia:Atari Jaguar CD|Wikipedia: Atari Jaguar CD]]''
The '''Jaguar Duo''' was a planned upgraded version of the [[Atari Jaguar emulators|Jaguar]] with a built-in Jaguar CD drive, slated for a 1996 release. However, the Jaguar had been such a commercial failure that by late 1995 Atari had stopped any further hardware production. Only an [https://consolevariations.com/collectibles/atari-jaguar-jagduo-prototype-console empty mock-up case] and an [https://forums.atariage.com/topic/270457-atari-jagduo-pcb-discovered/ unpopulated PCB] seem to exist.

===Resources===
* [http://www.videogameconsolelibrary.com/pg90-jaguar_duo.htm VGCL: Atari Jaguar Duo]

==Atari Jaguar 2==
The '''Jaguar 2''' (codename "Midsummer") was meant to be the successor to the [[Atari Jaguar emulators|Jaguar]]. However the Jaguar was a commercial failure and Atari closed doors in 1996. A number of developers are said to have received [https://web.archive.org/web/20060117051615/http://www.atari-explorer.com/jaguar/jaguar-2.html development prototypes] (codename "Cobweb") and reference material; Atari Museum had access to a working unit, and confirmed it to be backwards-compatible.

===Resources===
* [https://jagcube.atari.org/jaguartwo.html JagCube: Atari Jaguar 2 Prototype]
* [https://atarimuseum.ctrl-alt-rees.com/videogames/consoles/jaguar/jag2.html Atari Museum: Jaguar II prototype (mirror)]

==Hasbro Control-Vision==
:''[[wikipedia:Control-Vision|Wikipedia: Control-Vision]]''
The '''Control Vision''' (codenamed NEMO) was a system by Hasbro, slated for a 1989 release. It would use VHS tapes, with computer data stored alongside multiple video streams, to offer live action and interactive full-motion video.

Two games were completed for it: ''Night Trap'' and ''Sewer Shark''. However, shortly before the planned release, Hasbro executives deemed it to not be price-competitive and canceled it.

The system's developers bought the software assets from Hasbro and formed a new company, Digital Pictures, which later released those games on the Sega CD and other platforms.

==Konix Multisystem==
{{Infobox console
|title = Konix Multisystem
|logo = Konix Multisystem.jpg
|imagecaption = Pictured: Konix Multisystem promotional image
|developer=Konix, Flare
|type = [[:Category:Home consoles|Home video game console]]
|generation = [[:Category:Fourth-generation video game consoles|Fourth generation]]
|release = Canceled
|predecessor =
|emulated = {{y}}
}}
:''[[wikipedia:Konix Multisystem|Wikipedia: Konix Multisystem]]''
The '''Multisystem''' was a console by British peripheral manufacturer Konix, announced on early 1989. It was designed by Flare Technology, a team of former Sinclair Research employees. It was derived from their Flare One design, which in turn was a successor to the canceled Sinclair Loki computer. The Multisystem was promised to surpass the graphical capabilities of the [[Amiga]] and [[Atari ST line|ST]] computers by a wide margin, while retailing for half as much. However, as development suffered multiple delays, Konix ran out of funds and closed doors.

Flare proceeded to create a new "Flare Two" system; the team was acquired by Atari, and that became the basis for the [[Atari Jaguar|Jaguar]].

The Flare One design was utilized by Bell-Fruit Manufacturing on a [https://konixmultisystem.co.uk/index.php?id=bell-fruit range of quiz arcades.] Those machines are emulated by [[MAME]].

===Resources===
* [https://www.konixmultisystem.co.uk/ Slipstream: the Konix Multisystem archive]
* [https://github.com/Konix-Multisystem Konix Multisystem emulator]
* [https://www.gamesthatwerent.com/categories/konix-multisystem/ Games That Weren't: Konix Multisystem canceled & unreleased games]

==Ultravision Video Arcade System==
:''[[wikipedia:Ultravision Video Arcade System|Wikipedia: Ultravision Video Arcade System]]''
A system by Miami-based developer Ultravision, it was supposed to combine a game console, a home computer, and a built-in color TV.[https://books.google.com.mx/books?id=AjAEAAAAMBAJ&printsec=frontcover#v=onepage&q&f=false] Add-ons to play Atari 2600 and Colecovision games would be sold separately. It was announced at the 1983 CES, but the company closed doors that same year.

==Retro Chameleon==
:''[[wikipedia:Chameleon (console)|Wikipedia: Retro Chameleon]]''
The '''Retro Chameleon''' (originally Retro VGS, then Coleco Chameleon) was a crowdfunded console announced in 2015.

From the start its creators seemed to be shady, running crowdfunding campaigns without showing any prototype. The first one they did show, at the 2016 American International Toy Fair, was identified as [https://www.eurogamer.net/theres-a-waft-of-dodgy-about-the-coleco-chameleon-console a SNES inside a transparent Jaguar case.] They responded by showing a new photograph of their supposed system, but that also was quickly identified as [https://forums.atariage.com/topic/247145-coleco-chameleon-hardware-speculations/page/152/#comment-3454429 a video capture card inside the same case]. In response, Coleco Holdings revoked permission to use their brand, and the whole project was shut down.

==Infinium Labs Phantom==
:''[[wikipedia:Phantom Entertainment|Wikipedia: Phantom Entertainment]]''
The '''Phantom''' was a PC-based console by Infinium Labs. It was revealed in 2003 as a system that would eschew physical media in favor of an online subscription model. It was seen with suspicion from the start, as the announcement was light on specifics and heavy on buzzwords, and digital-only distribution seemed unfeasible when high-speed internet was still not widespread. The company repeatedly announced release dates, but never delivered. The U.S. Securities and Exchange Commission accused it of never intending it to actually launch a product, being merely a pump-and-dump scheme.

==Taito WoWoW==
The '''WoWoW''' was a console produced by a joint venture between arcade developer Taito, satellite operator <abbr title="Japan Satellite Broadcasting">JSB</abbr>, and publisher ASCII. It was to run games from either CD-ROM or download them via satellite. It was unveiled at the 1992 Tokyo Game Show. However, data transfer speed was too slow, and the satellite receiver would make the system quite expensive, so it was cancelled. Only a pared down port of arcade ''Darius'' was developed for it.

* [https://www.unseen64.net/2015/08/10/interview-taito-wowow-console/ Unseen64: Interview with designer Yukiharu Sambe]

==Apex Digital ApeXtreme==
:''[[wikipedia:ApeXtreme|Wikipedia: ApeXtreme]]''
The '''ApeXtreme''' is a PC-based console by Apex Digital, running Windows XP Embedded. It was shown at E3 2004, but cancelled in December that year.

==Indrema Entertainment System (L600)==
:''[[wikipedia:Indrema|Wikipedia: Indrema]]''
A console with PC-based hardware and running the Linux operating system. Announced in early 2000, just in time for the dot-com crash: the company could not get further financing and closed doors without releasing any product.

==Sega Jupiter==
:''[https://segaretro.org/Sega_Jupiter Sega Retro: Sega Jupiter]''
The '''Jupiter''' is an idea explored by Sega during the development of the [[Sega Saturn emulators|Saturn]]. The two machines would be identical specs-wise; but the Jupiter would lack a CD-ROM drive (cutting the price from the planned ¥50,000 to ¥30,000), running cartridge-based games instead; it would be upgradable into a Saturn by acquiring the CD-ROM drive separately.

It does not appear that the Jupiter ever reached the prototype stage; however, it is conceptually similar to the Sega Titan arcade system, which is essentially the Saturn hardware with games loaded from cartridges.

==Sega Neptune==
:''[https://segaretro.org/Sega_Neptune Sega Retro: Sega Neptune]''
The '''Neptune''' was a planned upgraded version of the [[Sega Genesis emulators#Hardware features and accessories|Sega Genesis, with a built-in 32X]].

Only one non-functional prototype mockup is known to exist.

[[Ares]] can emulate Sega Genesis games with 32X hardware, essentially replicating the way the Neptune would run Genesis games.

==Sega Pluto==
:''[https://segaretro.org/Sega_Pluto Sega Retro: Sega Pluto]''
The '''Pluto''' was the codename of an upgraded version of the [[Sega Saturn emulators|Saturn]] that would have included a modem and a hard-drive built in the console.

There are two known working prototypes.

==SKB Kontur Krokha==
The Krokha (Кроха) is a console by Russian company SKB Kontur (СКБ Контур). 200 test units were produced in 1990, and given to the employees when the project was cancelled.
* [http://videogamekraken.com/%D0%BA%D1%80%D0%BE%D1%85%D0%B0-by-skb-kontur-%D1%81%D0%BA%D0%B1-%D0%BA%D0%BE%D0%BD%D1%82%D1%83%D1%80 The Video Game Kraken]
* [https://en.wikibooks.org/wiki/History_of_video_games/Platforms/%D0%9A%D1%80%D0%BE%D1%85%D0%B0 Wikibooks]
* [https://www.arcade-museum.com/tech-center/machine/krokha Arcade Museum]

==Nintendo PlayStation==
{{Main|Super Nintendo emulators#Hardware variants}}
{{Infobox console
|title = Nintendo PlayStation
|logo = Sony-playstation prototype.jpg
|logowidth = 160
|developer = [[:Sony]] [[:Nintendo]]
|type = [[:Category:Home consoles|Home video game console]]
|generation = [[:Category:Fifth-generation_video_game_consoles|Fifth generation]]
|successor = [[PlayStation emulators|PlayStation]]
|emulated = {{~}}
}}
The '''Super Famicom CD-ROM Adapter''' (a.k.a <abbr title="Super Nintendo Entertainment System CD-ROM System">"SNES CD"</abbr>, "Super Disc", "Super CD", or "Nintendo PlayStation") is a prototype add-on for the [[Super Nintendo emulators|Super Nintendo]], developed by Sony in cooperation with Nintendo. It was never released to the public. The system seemingly would be available as both a CD-ROM add-on for the SNES, and a standalone unit that would read games in cartridge and CD.

After relations between the two companies soured, Sony decided to proceed with their own new hardware, retaining the name [[PlayStation emulators|PlayStation]].

While hundreds of prototypes were produced, only two are known to still exist. One is owned by entrepreneur Greg McLemore; the other is owned by PlayStation creator Ken Kutaragi.

==Panasonic M2==
{{Infobox console
|title = Panasonic M2
|logo = panasonic-m2.png
|imagecaption = Pictured: FZ-21S Model
|developer=[[3DO Company|3DO]]
|type = [[:Category:Home consoles|Home video game console]]
|generation = [[:Category:Sixth-generation video game consoles|Sixth generation]]
|release = Canceled
|predecessor = [[3DO emulators|3DO]]
|emulated = {{✗}}
}}

:''Not to be confused with [[Konami M2|Konami M2]], although they do share some history.''

The '''Panasonic M2''', also known as '''3DO M2''' or simply '''M2''', is a 64-bit, sixth-generation home video game console meant to be released by Matsushita (Panasonic) in 1997. Developed by The 3DO Company, M2 featured a CPU comprised of dual PowerPC 602s clocked @ 66 MHz, alongside a custom ASIC chip codenamed "Bulldog", which handled several audiovisual elements. It was originally intended to be an add-on for the [[3DO Interactive Multiplayer]]. Third-party developers received the M2 SDK, and they stated that the console is inferior to the Nintendo 64.

After system specifications were sold to Matsushita in early 1996, the company made a deal with Konami to produce arcade hardware based on the specifications (See [[Konami M2|'''Konami M2''']]).

Despite this, plans for release of the home console were canceled in mid 1997, and in October of the same year, Matsushita started marketing the M2 hardware for use in other markets, such as [[Interactive_Kiosk|interactive kiosks]]. However, several games and miscellaneous software have surfaced since, such as "''IMSA Racing''", "''PonPonLand''" and "''VizHouse''".

{{no current emulators}}

===Models===
* Interactive Media Player FZ-21S (FZ-21S1TK / FZ-21S1K) 
The system uses a case design identical to what was intended for the finalized M2 console. Additionally, it is much more rare than the FZ-35S.

*Interactive Media Player FZ-35S 
Uses a completely different case design, has 16MB of RAM and features a DVD-ROM drive. Other than that, the hardware is identical to the FZ-21S.
----
===Resources===
*''Panasonic Press Releases and Operating Manuals''
**[https://faberp.tripod.com/m2fz21spr.html Panasonic FZ-21S Press Release (June 1998)]
**[https://faberp.tripod.com/m2fz35spr.html Panasonic FZ-35S Press Release (November 1998)]
**[https://3dodev.com/_media/documentation/manuals/panasonic_fz-21s1k_-_operating_manual_us.pdf FZ-21S1K Operating Instructions, courtesy of 3dodev.com]
**[https://3dodev.com/_media/documentation/manuals/panasonic_fz-35s_-_operating_manual.pdf FZ-35S Operating Instructions, courtesy of 3dodev.com]
*''Software''
**[https://hiddenpalace.org/Category:Panasonic_M2_prototypes IMSA Racing and 3DO M2 Shooter Demo prototypes]
**[https://archive.org/details/3DODemoDisc 3DO M2 Demo Disc, by Video Game Esoterica]
**[https://archive.org/details/3-dom-2-viz VizHouse, dumped by Video Game Esoterica]
**[https://3dodev.com/software/roms FZ-35S BIOS, courtesy of 3dodev.com]
*''Operating System''
**[https://github.com/trapexit/portfolio_os_m2 3DO M2 Portfolio OS v3.0, released by trapexit]
**[https://archive.org/details/m-2-src-pre-release M2 Portfolio OS 1996-11-26 Snapshot, released by EagleSoft]
**[https://3dodev.com/documentation/development_documents/m2_releases 3DO M2 Release 2.7 Documents]
*''Miscellaneous''
**[https://faberp.tripod.com/M2DEV.htm M2 Development Unit FZ-DR21]

=See also=
*[[Preservation projects]] (especially Hidden Palace)
*[[Development Kits]]
*[[Console-specific development wikis]]
*[[Interactive Kiosk]]

=External links=
*[https://playstation.fandom.com/wiki/Category:Prototype_consoles PlayStation Fandom: Prototype consoles].

[[Category:Console types]]
[[Category:Endangered]]
[[Category:Home consoles]]
[[Category:Unreleased video game consoles]]
[[Category:Various emulation]]
[[Category:Various video game console-generations]]

Prototype consoles

2026-02-22T10:04:17Z

Stormwatch: /* Taito WoWoW */

{{WIP}}
{{Placeholder Section}}
'''Prototype consoles''' are consoles that have had a physical build made but for some reason not been released, Such as lack of faith in the console being successful or disagreements within the company/companies.
Some prototypes do (highly likely without permission from the developers) get sold to collectors, the exact relationship between the seller and the company is generally unknown.

=Handheld prototypes=
==Atari Cosmos==
:''[[wikipedia:Atari Cosmos|Wikipedia: Cosmos]]''
The '''Cosmos''' was a portable / tabletop console by Atari. Like many early handhelds, it was a simplistic hardware with a LED-based display; but it superimposes a two-layer holographic image to produce a 3D effect. It was shown at the 1981 New York Toy Fair, but reactions were mostly negative, so it was cancelled.

==Ericsson Red Jade==
:''[[wikipedia:Red Jade|Wikipedia: Red Jade]]''
The '''Red Jade''' was a handheld/PDA by Swedish telecom giant Ericsson, slated for a late 2002 release. It was cancelled amid corporate restructuring and mass firings, as the company was experiencing poor financial results in 2001.

==GamePark XGP==
:''[[wikipedia:XGP|Wikipedia: XGP]]''
The '''XGP''' was a South Korean handheld by GamePark, the successor to their [[GP32 emulators|GP32]]. Cancelled due to the company's bankruptcy in 2007.

==MoMA Eve==
:''[[wikipedia:MoMA Eve|Wikipedia: MoMA Eve]]''
The '''MoMA Eve''' was a handheld PC designed by startup Ministry of Mobile Affairs and produced by VIA Technologies. It ran Windows XP embedded. It was presented at the 2004 E3, but was never released.

==Philips In2it==
The '''In2it''' (codename "Kidcom") was an early tablet device produced by Philips, aimed at young girls. It had a monochrome touch screen, infrared communications, and a smart card reader. Anything from 100 to 1000 units were produced, but ultimately the company decided the product was not viable and cancelled it.

* [http://videogamekraken.com/philips-in2it The Video Game Kraken]
* [https://www.computinghistory.org.uk/det/66854/Philips-in2It/ Centre for Computing History]

==Panasonic Jungle==
:''[[wikipedia:Jungle (console)|Wikipedia: Jungle]]''
A handheld aimed at people who wanted to play MMOs on the go. Powered by an Nvidia Tegra SoC. Slated for a mid-2011 release, cancellation announced in early 2011.

=Home console prototypes=
==RDI Halcyon==
{{Infobox console
|title = RDI Halcyon
|logo = RDI Halcyon.png
|logowidth = 160px
|developer = RDI Video Systems
|type = [[:Category:Home consoles|Home video game console]]
|generation = [[:Category:Third-generation video game consoles|Third generation]]
|release = 1985 (planned)
|emulated = {{✗}}
}}
:''[[wikipedia:Halcyon (console)|Wikipedia: Halcyon]]''
The '''Halcyon''' is a [[LaserDisc]]-based, third-generation home video game console produced by RDI Video Systems.

The System was planned to be released in January 1985, priced at {{Inflation|USD|2500|1985}}. This makes it the most expensive console of all time. However, investors got cold feet and pulled the money; RDI produced less than a dozen prototype units before closing their doors. Surprisingly, it seems that [https://www.newspapers.com/image/401578341/ some units ''were'' sold] at now-defunct electronics shop Beverly Stereo in Los Angeles.

Only two games for the Halcyon were completed: ''Raiders vs. Chargers'' (released in arcades by Bally Midway as ''NFL Football''), and ''Thayer's Quest'' (released in arcades by RDI, then ported to other systems by Interplay as ''Kingdom: The Far Reaches'').

:Also see [[Home media players#Emulators]] section.

==Atari Game Brain==
:''[[wikipedia:Atari Game Brain|Wikipedia: Atari Game Brain]]''
The '''Game Brain''' was a low-cost game console by Atari, slated for a 1978 release. The console itself was little more than a shell, with the hardware contained in each cartridge doing the actual processing. This was never intended to be a major seller, but a way to clear CPUs from unsold dedicated consoles. It was poorly received at the 1978 CES due to being terribly outdated, so it was cancelled.

==Atari Panther==
:''[[wikipedia:Atari_Panther|Wikipedia: Atari Panther]]''
The '''Panther''' was a system developed by the Atari Corporation, slated for a 1991 release.

At the same time, the team was working on its planned successor, the [[Atari Jaguar emulators|Jaguar]]. As the system was found to have bugs that would have been costly to correct, and the Jaguar design progressed faster than expected, Atari decided to skip the Panther.

While it was never completed, there are various prototypes in the wild.

===Resources===
* [https://ctrl-alt-rees.com/atari-panther-cancelled-prototype-console-everything-you-ever-wanted-to-know ctrl.alt.rees: The Panther - Atari's Cancelled Console]

==Atari Jaguar Duo==
:''[[wikipedia:Atari Jaguar CD|Wikipedia: Atari Jaguar CD]]''
The '''Jaguar Duo''' was a planned upgraded version of the [[Atari Jaguar emulators|Jaguar]] with a built-in Jaguar CD drive, slated for a 1996 release. However, the Jaguar had been such a commercial failure that by late 1995 Atari had stopped any further hardware production. Only an [https://consolevariations.com/collectibles/atari-jaguar-jagduo-prototype-console empty mock-up case] and an [https://forums.atariage.com/topic/270457-atari-jagduo-pcb-discovered/ unpopulated PCB] seem to exist.

===Resources===
* [http://www.videogameconsolelibrary.com/pg90-jaguar_duo.htm VGCL: Atari Jaguar Duo]

==Atari Jaguar 2==
The '''Jaguar 2''' (codename "Midsummer") was meant to be the successor to the [[Atari Jaguar emulators|Jaguar]]. However the Jaguar was a commercial failure and Atari closed doors in 1996. A number of developers are said to have received [https://web.archive.org/web/20060117051615/http://www.atari-explorer.com/jaguar/jaguar-2.html development prototypes] (codename "Cobweb") and reference material; Atari Museum had access to a working unit, and confirmed it to be backwards-compatible.

===Resources===
* [https://jagcube.atari.org/jaguartwo.html JagCube: Atari Jaguar 2 Prototype]
* [https://atarimuseum.ctrl-alt-rees.com/videogames/consoles/jaguar/jag2.html Atari Museum: Jaguar II prototype (mirror)]

==Hasbro Control-Vision==
:''[[wikipedia:Control-Vision|Wikipedia: Control-Vision]]''
The '''Control Vision''' (codenamed NEMO) was a system by Hasbro, slated for a 1989 release. It would use VHS tapes, with computer data stored alongside multiple video streams, to offer live action and interactive full-motion video.

Two games were completed for it: ''Night Trap'' and ''Sewer Shark''. However, shortly before the planned release, Hasbro executives deemed it to not be price-competitive and canceled it.

The system's developers bought the software assets from Hasbro and formed a new company, Digital Pictures, which later released those games on the Sega CD and other platforms.

==Konix Multisystem==
{{Infobox console
|title = Konix Multisystem
|logo = Konix Multisystem.jpg
|imagecaption = Pictured: Konix Multisystem promotional image
|developer=Konix, Flare
|type = [[:Category:Home consoles|Home video game console]]
|generation = [[:Category:Fourth-generation video game consoles|Fourth generation]]
|release = Canceled
|predecessor =
|emulated = {{y}}
}}
:''[[wikipedia:Konix Multisystem|Wikipedia: Konix Multisystem]]''
The '''Multisystem''' was a console by British peripheral manufacturer Konix, announced on early 1989. It was designed by Flare Technology, a team of former Sinclair Research employees. It was derived from their Flare One design, which in turn was a successor to the canceled Sinclair Loki computer. The Multisystem was promised to surpass the graphical capabilities of the [[Amiga]] and [[Atari ST line|ST]] computers by a wide margin, while retailing for half as much. However, as development suffered multiple delays, Konix ran out of funds and closed doors.

Flare proceeded to create a new "Flare Two" system; the team was acquired by Atari, and that became the basis for the [[Atari Jaguar|Jaguar]].

The Flare One design was utilized by Bell-Fruit Manufacturing on a [https://konixmultisystem.co.uk/index.php?id=bell-fruit range of quiz arcades.] Those machines are emulated by [[MAME]].

===Resources===
* [https://www.konixmultisystem.co.uk/ Slipstream: the Konix Multisystem archive]
* [https://github.com/Konix-Multisystem Konix Multisystem emulator]
* [https://www.gamesthatwerent.com/categories/konix-multisystem/ Games That Weren't: Konix Multisystem canceled & unreleased games]

==Ultravision Video Arcade System==
:''[[wikipedia:Ultravision Video Arcade System|Wikipedia: Ultravision Video Arcade System]]''
A system by Miami-based developer Ultravision, it was supposed to combine a game console, a home computer, and a built-in color TV.[https://books.google.com.mx/books?id=AjAEAAAAMBAJ&printsec=frontcover#v=onepage&q&f=false] Add-ons to play Atari 2600 and Colecovision games would be sold separately. It was announced at the 1983 CES, but the company closed doors that same year.

==Retro Chameleon==
:''[[wikipedia:Chameleon (console)|Wikipedia: Retro Chameleon]]''
The '''Retro Chameleon''' (originally Retro VGS, then Coleco Chameleon) was a crowdfunded console announced in 2015.

From the start its creators seemed to be shady, running crowdfunding campaigns without showing any prototype. The first one they did show, at the 2016 American International Toy Fair, was identified as [https://www.eurogamer.net/theres-a-waft-of-dodgy-about-the-coleco-chameleon-console a SNES inside a transparent Jaguar case.] They responded by showing a new photograph of their supposed system, but that also was quickly identified as [https://forums.atariage.com/topic/247145-coleco-chameleon-hardware-speculations/page/152/#comment-3454429 a video capture card inside the same case]. In response, Coleco Holdings revoked permission to use their brand, and the whole project was shut down.

==Infinium Labs Phantom==
:''[[wikipedia:Phantom Entertainment|Wikipedia: Phantom Entertainment]]''
The '''Phantom''' was a PC-based console by Infinium Labs. It was revealed in 2003 as a system that would eschew physical media in favor of an online subscription model. It was seen with suspicion from the start, as the announcement was light on specifics and heavy on buzzwords, and digital-only distribution seemed unfeasible when high-speed internet was still not widespread. The company repeatedly announced release dates, but never delivered. The U.S. Securities and Exchange Commission accused it of never intending it to actually launch a product, being merely a pump-and-dump scheme.

==Taito WoWoW==
The '''WoWoW''' was a console produced by a joint venture between arcade developer Taito, satellite operator <abbr title="Japan Satellite Broadcasting">JSB</abbr>, and publisher ASCII. It was to run games from either CD-ROM or download them via satellite. It was unveiled at the 1992 Tokyo Game Show. However, data transfer speed was too slow, and the satellite receiver would make the system quite expensive, so it was cancelled. Only a pared down port of arcade ''Darius'' was developed for it.

* [https://www.unseen64.net/2015/08/10/interview-taito-wowow-console/ Unseen64: Interview with designer Yukiharu Sambe]

==Apex Digital ApeXtreme==
:''[[wikipedia:ApeXtreme|Wikipedia: ApeXtreme]]''
The '''ApeXtreme''' is a PC-based console by Apex Digital, running Windows XP Embedded. It was shown at E3 2004, but cancelled in December that year.

==Indrema Entertainment System (L600)==
:''[[wikipedia:Indrema|Wikipedia: Indrema]]''
A console with PC-based hardware and running the Linux operating system. Announced in early 2000, just in time for the dot-com crash: the company could not get further financing and closed doors without releasing any product.

==Sega Jupiter==
:''[https://segaretro.org/Sega_Jupiter Sega Retro: Sega Jupiter]''
The '''Jupiter''' is an idea explored by Sega during the development of the [[Sega Saturn emulators|Saturn]]. The two machines would be identical specs-wise; but the Jupiter would lack a CD-ROM drive (cutting the price from the planned ¥50,000 to ¥30,000), running cartridge-based games instead; it would be upgradable into a Saturn by acquiring the CD-ROM drive separately.

It does not appear that the Jupiter ever reached the prototype stage; however, it is conceptually similar to the Sega Titan arcade system, which is essentially the Saturn hardware with games loaded from cartridges.

==Sega Neptune==
:''[https://segaretro.org/Sega_Neptune Sega Retro: Sega Neptune]''
The '''Neptune''' was a planned upgraded version of the [[Sega Genesis emulators#Hardware features and accessories|Sega Genesis, with a built-in 32X]].

Only one non-functional prototype mockup is known to exist.

[[Ares]] can emulate Sega Genesis games with 32X hardware, essentially replicating the way the Neptune would run Genesis games.

==Sega Pluto==
:''[https://segaretro.org/Sega_Pluto Sega Retro: Sega Pluto]''
The '''Pluto''' was the codename of an upgraded version of the [[Sega Saturn emulators|Saturn]] that would have included a modem and a hard-drive built in the console.

There are two known working prototypes.

==SKB Kontur Krokha==
The Krokha (Кроха) is a console by Russian company SKB Kontur (СКБ Контур). 200 test units were produced in 1990, and given to the employees when the project was cancelled.
* [http://videogamekraken.com/%D0%BA%D1%80%D0%BE%D1%85%D0%B0-by-skb-kontur-%D1%81%D0%BA%D0%B1-%D0%BA%D0%BE%D0%BD%D1%82%D1%83%D1%80 The Video Game Kraken]
* [https://en.wikibooks.org/wiki/History_of_video_games/Platforms/%D0%9A%D1%80%D0%BE%D1%85%D0%B0 Wikibooks]
* [https://www.arcade-museum.com/tech-center/machine/krokha Arcade Museum]

==Nintendo PlayStation==
{{Main|Super Nintendo emulators#Hardware variants}}
{{Infobox console
|title = Nintendo PlayStation
|logo = Sony-playstation prototype.jpg
|logowidth = 160
|developer = [[:Sony]] [[:Nintendo]]
|type = [[:Category:Home consoles|Home video game console]]
|generation = [[:Category:Fifth-generation_video_game_consoles|Fifth generation]]
|successor = [[PlayStation emulators|PlayStation]]
|emulated = {{~}}
}}
The '''Super Famicom CD-ROM Adapter''' (a.k.a <abbr title="Super Nintendo Entertainment System CD-ROM System">"SNES CD"</abbr>, "Super Disc", "Super CD", or "Nintendo PlayStation") is a prototype add-on for the [[Super Nintendo emulators|Super Nintendo]], developed by Sony in cooperation with Nintendo. It was never released to the public. The system seemingly would be available as both a CD-ROM add-on for the SNES, and a standalone unit that would read games in cartridge and CD.

After relations between the two companies soured, Sony decided to proceed with their own new hardware, retaining the name [[PlayStation emulators|PlayStation]].

While hundreds of prototypes were produced, only two are known to still exist. One is owned by entrepreneur Greg McLemore; the other is owned by PlayStation creator Ken Kutaragi.

==Panasonic M2==
{{Infobox console
|title = Panasonic M2
|logo = panasonic-m2.png
|imagecaption = Pictured: FZ-21S Model
|developer=[[3DO Company|3DO]]
|type = [[:Category:Home consoles|Home video game console]]
|generation = [[:Category:Sixth-generation video game consoles|Sixth generation]]
|release = Canceled
|predecessor = [[3DO emulators|3DO]]
|emulated = {{✗}}
}}

:''Not to be confused with [[Konami M2|Konami M2]], although they do share some history.''

The '''Panasonic M2''', also known as '''3DO M2''' or simply '''M2''', is a 64-bit, sixth-generation home video game console meant to be released by Matsushita (Panasonic) in 1997. Developed by The 3DO Company, M2 featured a CPU comprised of dual PowerPC 602s clocked @ 66 MHz, alongside a custom ASIC chip codenamed "Bulldog", which handled several audiovisual elements. It was originally intended to be an add-on for the [[3DO Interactive Multiplayer]]. Third-party developers received the M2 SDK, and they stated that the console is inferior to the Nintendo 64.

After system specifications were sold to Matsushita in early 1996, the company made a deal with Konami to produce arcade hardware based on the specifications (See [[Konami M2|'''Konami M2''']]).

Despite this, plans for release of the home console were canceled in mid 1997, and in October of the same year, Matsushita started marketing the M2 hardware for use in other markets, such as [[Interactive_Kiosk|interactive kiosks]]. However, several games and miscellaneous software have surfaced since, such as "''IMSA Racing''", "''PonPonLand''" and "''VizHouse''".

{{no current emulators}}

===Models===
* Interactive Media Player FZ-21S (FZ-21S1TK / FZ-21S1K) 
The system uses a case design identical to what was intended for the finalized M2 console. Additionally, it is much more rare than the FZ-35S.

*Interactive Media Player FZ-35S 
Uses a completely different case design, has 16MB of RAM and features a DVD-ROM drive. Other than that, the hardware is identical to the FZ-21S.
----
===Resources===
*''Panasonic Press Releases and Operating Manuals''
**[https://faberp.tripod.com/m2fz21spr.html Panasonic FZ-21S Press Release (June 1998)]
**[https://faberp.tripod.com/m2fz35spr.html Panasonic FZ-35S Press Release (November 1998)]
**[https://3dodev.com/_media/documentation/manuals/panasonic_fz-21s1k_-_operating_manual_us.pdf FZ-21S1K Operating Instructions, courtesy of 3dodev.com]
**[https://3dodev.com/_media/documentation/manuals/panasonic_fz-35s_-_operating_manual.pdf FZ-35S Operating Instructions, courtesy of 3dodev.com]
*''Software''
**[https://hiddenpalace.org/Category:Panasonic_M2_prototypes IMSA Racing and 3DO M2 Shooter Demo prototypes]
**[https://archive.org/details/3DODemoDisc 3DO M2 Demo Disc, by Video Game Esoterica]
**[https://archive.org/details/3-dom-2-viz VizHouse, dumped by Video Game Esoterica]
**[https://3dodev.com/software/roms FZ-35S BIOS, courtesy of 3dodev.com]
*''Operating System''
**[https://github.com/trapexit/portfolio_os_m2 3DO M2 Portfolio OS v3.0, released by trapexit]
**[https://archive.org/details/m-2-src-pre-release M2 Portfolio OS 1996-11-26 Snapshot, released by EagleSoft]
**[https://3dodev.com/documentation/development_documents/m2_releases 3DO M2 Release 2.7 Documents]
*''Miscellaneous''
**[https://faberp.tripod.com/M2DEV.htm M2 Development Unit FZ-DR21]

=See also=
*[[Preservation projects]] (especially Hidden Palace)
*[[Development Kits]]
*[[Console-specific development wikis]]
*[[Interactive Kiosk]]

=External links=
*[https://playstation.fandom.com/wiki/Category:Prototype_consoles PlayStation Fandom: Prototype consoles].

[[Category:Console types]]
[[Category:Endangered]]
[[Category:Home consoles]]
[[Category:Unreleased video game consoles]]
[[Category:Various emulation]]
[[Category:Various video game console-generations]]