• Created : 2026-08-12
• Last modified : 2026-08-12

Use "x64 Native Tools Command Prompt for VS" command prompt.

• https://emscripten.org/docs/getting_started/downloads.html

(example) Installing at D:\code\emsdk:

:: Download and install the latest SDK tools.
D:\code\emsdk> emsdk.bat install latest

:: Make the "latest" SDK "active" for the current user. (writes .emscripten file)
D:\code\emsdk> emsdk.bat activate latest

:: Activate PATH and other environment variables in the current terminal
D:\code\emsdk> emsdk_env.bat

• Call raylib_dll/build_raylib_static_windows_vs.cmd. raylib will be installed at mruby/third_party/raylib.
• Calling raylib_dll/build_raylib_static_wasm.cmd. will build raylib with Emscripten and install at mruby/third_party/raylib/wasm.

• Make sure that you have mruby submodule at mruby/third_party/mruby.
• Call mruby/script/build_mruby_vs.cmd to build mruby as Windows native binaries.
  • This build includes mruby/mrbgems/mruby-raylib to make this mruby raylib-ready.
  • Artifacts will be available at mruby/bin/host.
• Call mruby/script/build_mruby_emscripten.cmd to build mruby for web browser.
  • Artifacts will be available at mruby/bin_web/host and mruby/bin_web/emscripten.

See mruby/examples/README.md for details.