Minecraft 1.8 8 Wasm -

: Emscripten, a complete compiler toolchain for WebAssembly, takes that code and outputs WASM binaries alongside a JavaScript glue layer.

is not a re-creation built from scratch in JavaScript. Instead, it is the actual 1.8.8 codebase (often a modified version of the client) transpiled into WebAssembly. minecraft 1.8 8 wasm