Unreal Tournament 99 intro flyby in web browser
icculus.org
icculus.org
That said... I got an (untraceable) Emscripten JS exception when I tried to start a new game.
As an aside, I tried this on an old ThinkPad X61, and the System Console resizes and moves around the screen with really no noteable lag. I know, it's just a dialog box, but I'm still reasonably impressed (Windowmanager in UT99->OpenGL->JS->JIT->DOM->C++->X11->screen)
The author outlined this in one of the bullet points.
I agree, the main menu was equally impressively responsive for me, even at 2560x1600 resolution.
Here, have at least one alternative: https://www.gog.com/games?sort=bestselling&search=unreal&pag...
UT99 is still a very beautiful & atmospheric game today.
This is the original UT99 game instead. It's similar, but not the same.