For those also unfamiliar with things then ID and its various offshoots and associates have often been seen to release source code to their games ( and might as well link for some of the forks at least ) with Doom happening many years ago and getting a few dozen projects with their own take on it, in addition to mods and user made content (probably the worst of the obvious choices for a link but ).įirst up is apparently prboom, one of the more notable open source takes on Doom, managed to get a GBA port. The Doom 1 port on the GBA being based upon the Jaguar port (so much so the tools for it fairly easily crossed over ) and the second a bit more of a custom effort.įor a more in depth discussion then the following pages do well While I would personally pick almost any other version to play today there does remain those that like all these oddball ports and the GBA platform for such things, and to be fair the way the game plays is not as limiting for Doom as later FPS efforts would be. For those unfamiliar then Doom and Doom II both got ports to the GBA.