So who here's a fan?
I found out about the series through a friend and started playing it using Aleph One. Too bad I don't have a Mac—I'd love to make levels.
First game is rather boring. Marathon 2 has tons of nifty things. Infinity has one of my favorite final levels of all time. It's incredible architectural porn for something on such an old engine.
Rubicon X is amazing, if somewhat too different in tone from the original games (less easy to justify the dream levels, for example).
Red is fucking intense
but the map glitches can be a pain in the ass. Still, Ian Mcconville did good work. Whoda thought a game running on 1997 code could make you shit your pants so well?
Evil is cool.
Eternal X...Didn't like it.
Tempus Irae, despite basically just being a level set, just feels nice and polished. The new juggernaut graphics freaked me out the first time I saw one.