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==Dissidia Final Fantasy Arcade variant==
Taito's Dissidia Final Fantasy Arcade is the only arcade game that runs on PS4-based hardware. This game runs on a PS4 kiosk demo unit, and the hardware is identical to regular retail PS4 and could be converted to regular retail mode. An extra I/O board is attached to the PS4 via a USB port.
Despite the fact that the arcade game program itself could run on a regular PS4 without any issue, the USB I/O board is yet to be reverse-engineered, and judging from the current status of PS4 emulation, emulation support for this arcade game is very likely the last item on the to-do list.
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: A private project being worked on by one of the original developers of [[RPCS3]], DH. Little is known about the project at this time, but we do know that it's expected to run on Unix-likes and can boot PS4 games without graphics.<ref>[https://www.reddit.com/r/pcgaming/comments/cxx5h3/we_are_team_rpcs3_the_playstation_3_emulator_we/eyoqzes/ DH] on Reddit. "If you have Unix-like OS, I can send you binary and you will able to run any game for PS4 and see many different errors for each (without graphics of course)"</ref> It is still being worked on, although it is in the early stages.<ref>[https://www.reddit.com/r/emulation/comments/ppffdy/rpcs4_ps4_emulation_preview_of_current_progress/ RPCS4 progress update] on Reddit. "DH, RPCS3's founder, has permitted to share this quick progress update of his PlayStation 4 emulator."</ref>
:; RPCSX:: An upcoming FLOSS emulator created by one of the original developers of [[RPCS3]], DH, along [[RPCS3]] current main developers Nekotekina and kd-11. It's in early stages although it can already [https://pbs.twimg.com/media/F1RZYjTWwAMieSr?format=png&name=900x900 boot the commercial game] ''We Are Doomed''. According to DH, [https://imgur.com/a/x98Ylhx the emulator uses code from RPCS4 and RPCS3]. There's no available ETA whether when it'll be released.
;[[Spine]] <small class="plainlinks" style="font-weight:normal;">([https://docs.google.com/spreadsheets/d/1vebgZawcNhdZnGPaSuWrC6wo9OpR1miz/edit#gid=438411959 compatibility])</small>
; shadPS4
: An PS4 compatibility layer. It can only do basic loading of ELF files at the moment, despite the developer adding more features, including a dynamic resolver, etc.
==Dissidia Final Fantasy Arcade variant==
Taito's Dissidia Final Fantasy Arcade is the only arcade game that runs on PS4-based hardware. This game runs on a PS4 kiosk demo unit, and the hardware is identical to regular retail PS4 and could be converted to regular retail mode. An extra I/O board is attached to the PS4 via a USB port.
Despite the fact that the arcade game program itself could run on a regular PS4 without any issue, the USB I/O board is yet to be reverse-engineered, and judging from the current status of PS4 emulation, emulation support for this arcade game is very likely the last item on the to-do list.
==Emulation issues==
* The obstruction of the download behind endless surveys. Emulator development nowadays gets its funding from [[Emulators on Patreon|Patreon]] or Google Play.
* It is fairly easy to fake a PS4 (and even [[PlayStation 5|PS5]]) emulator by taking the open-source [https://git.sr.ht/~thestr4ng3r/chiaki Chiaki] Remote Play client, which works by streaming games from an actual PS4, and modifying the GUI to display fake hardware usage stats alongside the game. If its claims of running any PS4 game in 4K at 60FPS with little to no issues were true, there would certainly be news articles about it, just like there were for [[Cemu]].
==References==
