Notes for myself and anyone who wants to try the same: - emcc main.cpp -sUSE_SDL=2 -sUSE_SDL_IMAGE=2 --preload-file assets -o index.html builds - the main loop has to go. Browser doesn't let you block, so emscripten_set_main_loop(tick, 0, 1) and pull state into globals - audio won't start until the user clicks. Added a title screen - loads in about 2s locally on a 9MB .data file. Haven't compresse…