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yuzu is an experimental, open-source Nintendo Switch emulator/debugger written in C++. Due to its preliminary state, it has not yet had a stable release.
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The titles The Binding of Isaac: Afterbirth+, Puyo Puyo Tetris and Cave Story+ formed the first group of games to boot on this emulator. On late April 2018, yuzu booted its first Switch exclusive, 1-2-Switch. On July 2018, yuzu was able to run its first 3D rendered game, Minecraft: Story Mode.
Be sure to read this first insightful progress blog report (July 14, 2018), which details the background and efforts at the reverse-engineering and emulation work required to get yuzu up and running and a small bundle of games and apps to work better over time. It also covers a significant number of surprising similarities between the hardware and operating systems of the 3DS and Switch. Thus, a lot of the code made for the 3DS emulator Citra was also shared and re-interpreted for yuzu.
yuzu started showing some 3D rendering on Super Mario Odyssey in early August. This awaited exclusive game brought a lot of interest in the project. yuzu covered all the August change in another detailed progress report (September 11, 2018).
As of November 2019, yuzu is now in-game in several Nintendo Switch exclusives and keep improving it's compatibility day by day with active developers.
In May of 2020, multicore CPU emulation was implemented, improving framerates and allowing many games that are locked at 30 FPS on the Switch to be run at 60 FPS on yuzu.