That is old demo of fan-made game "Space Hunters", what had functional demo in 2013; the site has ceased existing and became browser MMO; actual demo of game was archived (and it worked back in the day), but for some reason it doesn't work. This is closest the game had to third part (besides awful mobile spin-offs). I don't know where to put it; perhaps someday someone could repair it? Or at least say what's wrong with it. It was either Flash or Jawa (more likely Flash game), but Ruffle doesn't work with it.

https://web.archive.org/web/20131127125620/http://spacehunters.ru/demo/game.php

https://web.archive.org/web/20140221043309/http://spacehunters.ru/demo/AC_OETags.js

https://web.archive.org/web/20140221101646/http://spacehunters.ru/demo/demogame2.swf

https://web.archive.org/web/20100713211601/http://www.spacehunters.ru/

Also treat this as test of ability to load files to this leaderboard. It works correctly (IDK if everyone could do it, or only moderators were supposed to be able to do this).