Can someone explain how games this size are ported?

I am not the author but I assume it’s https://github.com/morluto/rea

Author https://x.com/omonkeyzz/status/2113802909385179318

From what I know, developers use tools like Emscripten to compile the game's C++ source code into WebAssembly.

executables are very small in comparison to assets. you just decode the exe, transpile it to c, recompile again to wasm and viola!

you still need oryginal game to play

if u have the original game why on earth would u want to get a web browser involved? is there some benefit?m

Sadly it only works on Chromium based browsers apparently. So much for the open web feels like flash and java of years gone by

For now, yeah. Other browsers are still in progress: https://x.com/omonkeyzz/status/2115032697227854009

This is also doable via GeForce Now (I think - it’s been years since I tried doing it, but IIRC I was in chrome on an iPhone.)

I tried this in Firefox and Chrome on Linux, and neither worked.

Weird I vaguely recall even if you enable experimental chromium features it's single thread only + webGPU doesn't fully utilize your GPUs capabilities. How this is possible that you can play a AAA game with chrome? Is it that this game isn't as computationally intensive since it's an older game or something else?

Don't waste your time on Firefox/Safari: it will download 1GB of assets before failing to load.