FPS era's unregulated level packs led to landmark copyright lawsuit

The advent of first-person shooters introduced a wild frontier of unregulated level packs https://www.pcgamer.com/games/fps/the-advent-of-first-person-shooters-introduced-a-wild-frontier-of-unregulated-video-game-level-packs-and-it-ended-in-a-lawsuit-that-changed-copyright-forever/