M4KC

A browser port of Minecraft 4K

M4KC is a WebAssembly port of a C rewrite of Minecraft 4K, featuring improved performance and terrain generation.

Play opens midzer.de in a new tab. Link checked 4 Nov 2026.

Developer: midzer / sashakoshka
Tech: Decompilation, WebAssembly
Genre: Action
Added: 3 Nov 2026

M4KC is a web version of Minecraft 4K, Notch's tiny entry for the Java 4K Game Programming Contest. This project translates the original Java code into C and compiles it to WebAssembly for the browser, improving performance while retaining the original look and feel. The port features a 3D voxel raycaster engine, perlin noise terrain generation, caves, and a day/night cycle.