# n64decomp/mk64

A speedy Mario Kart 64 decompilation, brought to you by the cousin of a tame racing driver.

Repository: https://github.com/n64decomp/mk64
Canonical: https://ross.abutalabs.com/products/mk64
Language: C
License Family: other
Last push: 2026-08-16T03:24:52+00:00

## Health v2 (maintenance only)
Score: 76/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 98, release rhythm 35, longevity 100
- inputs: {"age_days": 2148, "days_push": 17, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1292, forks 134 (observed 2026-08-28T04:04:16.009530+00:00)

## What it is
A complete C decompilation of Mario Kart 64 that rebuilds byte-matching ROMs for USA and European revisions from extracted game assets. It serves as an educational and modding resource documenting the game's engine, audio, and course systems.

## Use cases
- rebuild a matching Mario Kart 64 ROM from source
- study how an N64 game engine is implemented
- create mods for Mario Kart 64
- understand N64 libultra and RSP internals
- port or hack Mario Kart 64 course data
- learn reverse engineering of retro game code

## When to choose
- you want a byte-matching, well-documented decompilation of Mario Kart 64
- you need a base for MK64 modding or research
- you want to study N64-era C game code

## When to avoid
- you want a playable game without owning an original ROM for asset extraction
- you need a decompilation of a different N64 game
- you expect a permissive license - the repo has none

## Facets
- artifact type: application
- maturity: active
- function: compiler, reverse-engineering, build-tool, documentation
- domain: reverse-engineering, gaming-tools, education
- platform: windows, cpp, c
- tags: decompilation, n64, mario-kart-64, rom, matching-decomp, modding, retro-gaming, game-development, linux, macos

## Member repositories
- n64decomp/mk64 (main) score 76

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:16.009530+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:54:44.664219+00:00, confidence not recorded.
  - readme: https://github.com/n64decomp/mk64 (fetched 2026-08-28T04:04:16.009530+00:00, sha f4d6d92b3b74)
- Data as of 2026-08-30T08:39:29.467469+00:00.