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|platform = [[Emulators on PC|Windows, ]]<br/>Linux, <br/>[[Emulators on macOS|macOS]]<br/>[[Emulators on Android|Android]]<br/>Raspberry Pi|target = [[Sega Dreamcast emulators|Sega Dreamcast]]

|website = [http://redream.io/ http://redream.io/]

'''redream''' is a closed-source [[Sega Dreamcast emulators|Sega Dreamcast emulator]]. It was formerly licensed under GPLv3, but then went closed-source in January 2018<ref name="Closed-news">{{cite web|url=https://gitlab.com/inolen/redream/issues/301#note_53633080|title=Statement from inolen|publisher=GitLab|accessdate=2018-04-20|date=2018-01-08}}</ref>. There are two editions of redream: Lite and Premium. First one is free to everyone while second one is payware with added high-definition rendering. The emulator is one of the few if not the only Dreamcast emulator that can run without a BIOS; however, using a BIOS is highly recommended as some games may have bugs as the replacement BIOS is not currently perfect. ==Download=={| cellpadding="4"|-|align=center|{{Icon|Win|Lin|Mac|LiA}}|'''[https://redream.io/download Stable and Dev builds]'''<br/><small>[https://arch.b4k.co/vg/thread/264792040/#264802560 How to manually unlock Premium]</small>|-|align=center|{{Icon|Win|Lin|Mac|LiA}}|'''[https://redream.io/premium Premium]'''<br/><small>Payware $5. See above.</small>|-|align=center|{{Icon|Android-big}}|'''[https://play.google.com/store/apps/details?id=io.recompiled.redream Google Play store]'''<br/><small>Free to download, offers in-app purchases.</small>|} ==System RequerimentsRequirements=====PC===

Processor: x86_64 x86-64 compatible with AVX2 or SSE2 support(AVX2 recommended)

Graphics: OpenGL 3.1 support (Order-independent transparency support is only avaliable available in OGL 4.5 3 or higher) ===Mobile===Android: Android 5.0+, OpenGL ES 3.1

==DownloadOverview==* On [https://redream.io/download Liteposts/improving-audio-video-synchronization-multi-sync July 2018] (Official, sign up required)inolen introduced a major change to redream's audio/video synchronization in version 1.2.3 by utilizing a feature called, in his words, "MultiSync". This helps to prevent audible crackling, unexpected latency in audio and skipped or torn frames in video output. The solution does involve some added code complexity and memory bandwidth to handle the extra bits. "It also has a few more subtle benefits:* Lower spec machines have more time to do actual emulation work as the main thread is never blocked by [[https://megavsync]].nz/#F!dVUkSSYS!3FGzynLLyd7u8Dn3MpQx7g Lite] (Mirror)* [https://redreamIf the user has vsync force disabled in their control panel, emulation still runs at the correct speed since it's being driven by the audio sync.io/premium Premium] (Payware, $5)"

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*[https://github.com/inolen/redream/wiki/Compatibility Compatibility Wiki] ([https://redream.io/gamescompatibility/ Officialcompatibility list])*[https://discordapp.com/invite/zuEAVTG Discord chat channel] for redream*[https://twitter.com/inolen Twitter news feed] for redream*[https://www.youtube.com/channel/UCMqaMG7GgKMd7KNA9aVM8fA/search?query=redream Youtube channel] officially linked to redream's website*[https://www.youtube.com/watch?v=AmVFDfpW38I Showcase - Order Independent Transparency implementation on Redream] (Jun 3, 2018)