MKSC Neo

MKSC Neo

A native C/SDL3 re-implementation of Mario Kart: Super Circuit (US) for macOS, Linux, Windows, Android and the web, with optional enhancements (any resolution and aspect ratio, unlocked framerate, local split-screen, modern menus) and a modding API for custom tracks, karts, items, rules and Lua scripts.

You need your own legally obtained US ROM. No game content is included: on first start the game asks for your .gba file and imports it locally.

Playing

Play in the browser at https://arcanite24.github.io/mksc-neo/, or download the bundle for your platform from Releases (macOS, Linux, Windows, web or Android), start MKSC Neo.app, ./mksc, mksc.exe or the APK, and choose your ROM. To make bundles yourself, see docs/BUILDING.md.

Building

Requires CMake 3.20+, a C11 compiler, Python 3 and SDL 3.

python3 tools/portable/check.py debug         # build and run the headless tests
python3 tools/portable/check.py debug --sdl   # also build the SDL game
.mksc-tools/portable/check/debug-sdl/mksc     # run it

Documentation

Also rendered at https://arcanite24.github.io/mksc-neo/.

• docs/BUILDING.md — build, test, run, controls, releases, Android and web.
• docs/MODDING.md — install and make mods: Lua, data, tracks, 3D courses and models.
• docs/ARCHITECTURE.md — how the engine is put together.

Layout

Path	Contents
portable/	The game: deterministic core, app, importer, audio, SDL platform layer and tests.
tools/portable/	Test runner, reference importer, mod kit and release packaging.
tools/site/	Project site: home page, rendered docs and the playable web build.
mods/	Example mods and course hand-pass data.
stores/official/	Index for the in-game mod store.

Credits

MKSC Neo started from the aplerdal/mksc decompilation of Mario Kart: Super Circuit. The original game's behavior — physics, collision, AI, items and data formats — was recovered from that work and re-implemented here as native C. Thanks to its authors and contributors.

Third-party code and fonts are listed in LICENSE-NOTICE.md.

MKSC Neo is not affiliated with or endorsed by Nintendo. Mario Kart is a trademark of Nintendo.