G64

What it does

G64 is a Garry's Mod addon that uses ckosmic's fork of libsm64 to run Super Mario 64's decompiled movement code inside Source maps. It includes the full moveset, wing/metal/vanish caps, coins, multiplayer, gamepad and vehicle support. Assets are extracted at runtime from a user-supplied US ROM; Windows and 64-bit GMod only.

How it works

Lua addon plus native binary module wrapping a fork of libsm64 (SM64 decompilation movement/rendering code); Mario collides with Source BSP geometry

Requirements & limitations

Garry's Mod 64-bit (x86-64) branch; G64 binary module via G64Installer; user-supplied US Super Mario 64 ROM

Original sources

• Source code ↗
• Release / download ↗
• Watch demo ↗
• Project page ↗

Evidence limits

Primary sources reviewed on 2026-10-08 (github.com, api.github.com, steamcommunity.com, youtube.com). No independent catalogue play-test or binary safety review was performed.

Code and releases are linked, not hosted here. Game files and footage retain their owners’ rights.