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Cemu 1.17.3


Cemu is a Highly experimental software to emulate Wii U applications on PC.


  • Can run encrypted Wii U images (WUD) and RPX/RPL files
  • Internal resolution is 1920x1080 (if supported by game)
  • Contains basically no optimizations. Expect slow framerates and long load times.
  • Windows 7 or above (x64) (other platforms may be supported later)
  • Requires OpenGL 4.0
  • Tested on NVIDIA and AMD: Runs fine on most recent driver
  • Tested on Intel: Garbled output but runs if OpenGL version is supported


Cemu detailed changelog for 1.17.3


New in 1.17.3:

  • general: Added a workaround for Cemu not launching on Windows 10 1709
  • general: Added button for checking online mode requirements to account settings
  • gamelist: Improved identification of updates/dlc
  • gamelist: Games which are identified as an update will again show up in the list, but only if no base game is found
    • This is a workaround for modified game dumps where the update data was merged into the base game. Please always use the File -> Install update/dlc option in Cemu
  • gamelist: Fixed a bug where a game could appear more than once if multiple game paths were set
  • CPU/JIT: Code translation (PPC -> x64) is now done asynchronously on a separate thread
    • The previous implementation would do translation synchronously on the CPU emulation thread.
    • This could lead to micro stutter in situations where a game hit a lot of new code (e.g. on first loading screen)
  • OpenGL/Vulkan: Added a safeguard to prevent crashes when games try to use a depth texture with an invalid format
  • Vulkan: Fixed an issue where depth to color texture copies would use the wrong shader
  • coreinit: Fixed a crash in OSCalendarTimeToTicks (#268)
  • nn_boss: Fixed SpotPass always assuming an id of 80000001 instead of using the one selected by the user


Cemu Emulator





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