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Gearcoleco Git (2026/05/03) is an open-source ColecoVision emulator designed to run on various platforms, including Windows, macOS, Linux, and Raspberry Pi. Written in C++, it features an accurate Z80 core, precise TMS9918 emulation, SDL Audio-based sound emulation, and supports save states and compressed ROMs. The emulator also offers a full debugger with capabilities like CPU breakpoints, memory editing, and VRAM viewing. Gearcoleco is compatible with multiple devices, including Android, iOS, and retro consoles. Recent updates include synchronization of rewind functionality with the GUI, enhancing usability for users.
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Gearcoleco Git (2026/05/03) has been compiled. Gearcoleco is a highly accurate cross-platform ColecoVision emulator developed in C++ that operates on Windows, macOS, Linux, BSD, Raspberry Pi, and RetroArch. This open-source project continues to evolve thanks to the support of some amazing backers.
Features:
Precise Z80 core, including undocumented opcodes and behaviors such as R and MEMPTR registers.
Authentic TMS9918 emulation.
Audio emulation utilizing SDL Audio and the Sms_Snd_Emu library.
Save state functionality.
Support for compressed ROMs (ZIP).
Supported platforms (standalone): Windows, Linux, BSD, macOS, and Raspberry Pi.
Supported platforms (libretro): Windows, Linux, macOS, Raspberry Pi, Android, iOS, tvOS, PlayStation Vita, PlayStation 3, Nintendo 3DS, Nintendo GameCube, Nintendo Wii, Nintendo WiiU, Nintendo Switch, Emscripten, Classic Mini systems (NES, SNES, C64, …), OpenDingux, RetroFW, and QNX.
Comprehensive debugger featuring a just-in-time disassembler, CPU breakpoints, memory access breakpoints, code navigation (go to address, double-click JP JR and CALL), debug symbols, memory editor, IO inspector, and VRAM viewer that includes registers, tiles, sprites, and backgrounds.
Portable mode for Windows and Linux by creating a file named portable.ini in the same folder as the application binary.
Support for modern game controllers via a gamecontrollerdb.txt file located in the same directory as the application binary.
Gearcoleco changelog:
* [mcp] Synchronize rewind with GUI
