1.5 / 14-02-2020



Redream is a closed-sourced Dreamcast emulator, enabling you to play your Dreamcast games in high-definition on Windows, Mac and Linux. There are 2 versions; lite and premium (small fee). The only significant difference is that the premium version lets you scale to Ultra-HD resolutions. With an excellent streamlined experience, it will eventually be the best, as accuracy continues to improve (passed 80%). That said, it's not the most accurate nor does it support Dreamcast peripherals. 

Note: BIOS file not required, but may improve compatibility in certain cases.





Windows: 7+ 64-bit

Linux: Ubuntu 64-bit

Mac: OS X 64-bit

CPU: Processorx86_64 compatible with AVX2 or SSE2 support

GPU: GraphicsOpenGL 3.1 support, OpenGL 4.5 support for per-pixel polygon sorting

Most Recent Changes!


  • Disc swap support.
  • Redump BIN/CUE support.
  • Widescreen hack support.
  • Codebreaker cheat support.
  • Raspberry Pi 4 support.
  • HLE BIOS font support.
  • Exclusive fullscreen support.
  • High DPI support on Windows and Mac.
  • Nintendo Switch controller support.
  • PowerVR trilinear filtering support.
  • PowerVR secondary accumulation buffer support.
  • PowerVR parameter selection modifier volume support.
  • Register aliasing support to improve ARM32 register allocations.


  • Numerous CPU and GPU performance improvements as a result of the Pi bringup.
  • Removed GL_ARB_fragment_shader_interlock dependency for per-pixel sorting.
  • Ignore removable media drives on Windows which have no disk in them.
  • Librray scanning responsiveness improved for large libraries.
  • Library scanning is now limited to a single worker thread.
  • Filter out noisy axes when catching key binds.


  • Major HLE BIOS refactor, fixed all known incompatibilities.
  • Refactored renderer to support rendering shadows before fog.
  • Video output only filling half the screen in some PAL games.
  • Video output flickering over component in some PAL games.
  • Codebreaker main menu not rendering.
  • Langrisser Millenium main menu not rendering.
  • NFL 2K/2K2 field textures not blending correctly.
  • NFL Blitz 2001 shadows not blending correctly.
  • NHL 2K2 ice appearing black.
  • Real Sound framebuffer vertical bands.
  • World Series Baseball 2K2 blurry textures.
  • V-Rally 2 main menu flickering.
  • Numerous AICA stream fixes.
  • Missing CDDA music in a few games.
  • Decoding of ADPCM audio to be bit-perfect.
  • Sega Bass Fishing audio going off the rails.
  • Capcom Fighting Collection hanging on boot.
  • Fast Striker crashing at the end of level 1.
  • Gundam Side Story crashing during third mission.
  • Tech Romancer crashing after a few rounds.
  • Library scanning not working with exFAT drives.