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Gecko (2026/05/21) is a cross-platform GameCube/Wii emulator and debugger written in Rust, designed for homebrew development and reverse engineering while delivering a playable experience. Key features include a PowerPC and DSP JIT using Cranelift, wgpu rendering, and support for all major platforms. It offers an advanced debugging UI, Lua scripting, .wav audio dumping, and ISO/RVZ support. The emulator incorporates a multitool for IPL decoding, DVD extraction, and PPC/DSP disassembly. Recent updates include nightly releases, cycle accuracy improvements, and various bug fixes. Downloads are available with a detailed changelog.
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Gecko (2026/05/21) has been released. It is a cross-platform GameCube/Wii emulator and debugger developed in Rust.
Gecko Features:
Gecko is designed for homebrew development and reverse engineering while also striving to deliver an accurate and enjoyable experience!
PowerPC JIT (Cranelift)
DSP JIT (Cranelift)
GX vertex decode JIT (Cranelift)
Starlet HLE
IPL skip patches for NTSC and PAL
wgpu-based renderer backend
Compatibility with all major platforms
wesl specialized shader compiler
JIT and shader cache
Frame pacing
Modular audio backend, defaulting to cpal
Mixing audio sinks support
Capable of dumping to .wav files
MCP server
Lua scripting system for runtime introspection
An aesthetically pleasing yet advanced egui-based debugging UI
Symbol parsing from ELFs and IDA Pro databases
RenderDoc captures with various debug markers
ISO and RVZ support; also accepts packing as a ZIP
Included multitool, featuring:
IPL decode/encode
DVD filesystem extraction
PPC and DSP disassembler
Multiple built-in diagnostics for JIT and GX
Web browser support with debugging capabilities
Gecko Changelog:
* merged updates
* nightly builds
* cycle accuracy improvements
* refrain from responding to stm eventhook
* Reverted “avoid snapshot_texture when BP writes that produce no side effects and are meaningless”
* avoided snapshot_texture when BP writes that yield no side effects and have no significance
* modified input mechanism for screenshot functionality
* resolved apploader hle arg base issue affecting text section writes; centered loading dialog in gecko-app
* game index updates
