Gecko (May 18, 2026)

Gecko (2026/05/18) is a cross-platform GameCube/Wii emulator and debugger developed in Rust, focusing on homebrew development and reverse engineering while ensuring a faithful gaming experience. Key features include a PowerPC and DSP JIT using Cranelift, GX vertex decode JIT, an HLE for Starlet, and support for both NTSC and PAL. It employs a wgpu-based renderer, offers audio mixing, and allows wav file dumping. The emulator supports ISO and RVZ formats, features a user-friendly egui-based debugging UI, and integrates tools for IPC decoding, DVD filesystem extraction, and disassembly. It also supports web browser debugging capabilities.

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Gecko (2026/05/18) has been released. This is a versatile GameCube/Wii emulator and debugger developed in Rust.

Gecko Features:
Gecko is designed with homebrew development and reverse engineering in mind, while also providing a true-to-life, playable 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
Supports all major platforms
wesl specialized shader compiler
JIT and shader caching
Frame pacing
Modular audio backend, defaults to cpal
Mixing audio sink support
Dumping to .wav files
MCP server
Lua scripting system for runtime introspection
An elegant and advanced egui-based debugging UI
Symbol parsing from ELFs and IDA Pro databases
RenderDoc captures with various debug markers
ISO and RVZ support; also accommodates packed formats as ZIP
Included multitool, supporting:
IPL decode/encode
DVD filesystem extraction
PPC and DSP disassembler
Built-in diagnostics for JIT and GX
Web browser support
including debugging capabilities