Marathon is still alive! AlephOne is the new engine for Marathon, runs all 3 games on modern platforms and is GPL: https://alephone.lhowon.org/ https://alephon

Marathon is still alive! AlephOne is the new engine for Marathon, runs all 3 games on modern platforms and is GPL: https://alephone.lhowon.org/ https://alephone.lhowon.org/ The original Mac OS 9 game files are freely available if you want to run them on a old Mac: http://trilogyrelease.bungie.org/ http://trilogyrelease.bungie.org/