The classic sci-fi FPS Marathon from Bungie on Mac revived for modern hardware by the fan community.
This classic 1994 Bungie™ FPS had a foundational influence on the genre, and is now maintained by the fan community. Experience authentic game play using the original data files, with optional widescreen HUD support, 3D filtering/perspective, positional audio, and 60+ fps interpolation, just in case the original is too authentic.
Classic Marathon is powered by the Aleph One engine, which is available under the terms of the GNU General Public License (GPL) Version 3.
The writing for this series was great. Overall the game was really a cut above most other things out there at the time. As a Mac gamer (a rare breed for sure) it felt special to have something so good just for us. They did port Marathon 2 for windows, but I don’t think it was a huge commercial success. I’m glad that it was open sourced though so that it could be shared with everyone.
Marathon had a function to record and replay gameplays, and there was a community of people sharing their in game accomplishments and challenges. Vidmasters was probably my first taste of something like a speedrunning community. But it was enough to beat the level, we needed to vid it with style.
I imagine that most fans already know this, but just in case, I recommend checking out Marathon Rubicon, which is an excellent unofficial sequel to Marathon Infinity.