In a similar spirit to Freedoom, for Quake fans perhaps you'll want to take a look at LibreQuake, which aims to do a similar thing to allow you to play Quake content with completely open source software.
  • @pastermil
    7•2 days ago

    So I would presume this libre alternative would have all the assets free, no?

    • @RmDebArc_5OPEnglish
      3•1 day ago

      According to their GitHub the art is BSD licensed and the rest GPL