BizHawk

Multi-system emulator with rerecording, savestates and debugging tools built for tool-assisted runs.

Desktopfree

BizHawk is an open-source multi-system emulator covering dozens of retro consoles and computers. Alongside normal play it offers input recording, rewind, frame stepping, memory search and editing, savestates, video capture and Lua or C# scripting, which makes it a common choice for tool-assisted speedrunning and for researching game internals. It runs on Windows and Unix systems.

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