https://icculus.org/ut99-emscripten/

[screenshot]

HEY. Did you know I have a Patreon page that funds fun projects like
this? Throw in a buck.

UT99/emscripten

A few warnings:

  * This is a 100 to 200 megabyte download, depending on what
    compression your browser supports, in case you want to back out
    now.
  * This is known to work on: Firefox, Google Chrome (desktop),
    Google Chrome (recent versions of Android), Microsoft Edge
    (Windows 10 Creators Update or later), Safari (desktop, 10.1 or
    later).
  * This is known NOT to work on: Mobile Safari, Microsoft Edge
    before the Windows 10 Creators Update, Internet Explorer.
  * This is just the intro flyby to show it works. The whole game is
    not included because it's a big download and not mine to give
    out.
  * Since there are files missing, the main menu crashes if you try
    to start a game. This is known.
  * The framerate could be much better with a rewritten renderer, but
    right now it's using the original fixed-function OpenGL code
    here.
  * This was built with Emscripten, SDL2, and Regal.
  * This wasn't done by Epic Games, and no one is selling/shipping/
    supporting this. It was just for fun. Don't bother Epic about it.
  * Did you know that the latest Unreal Tournament game is being
    developed as free-to-play open source? Check that out here!
  * Want to buy the real, native version of this game? It's for sale
    on Steam and GOG.
  * You can find me on Twitter: @icculus.

                                                              --ryan.