Classic Marathon

I'm not exaggerating in the slightest when I say this is literally the worst FPS game I have ever played in my life. It's actually offensive that this came out after DOOM. I would rather play Chex Quest or Wolf3D than ever touch this again.

Between this Marathon and new marathon, classic marathon is 10000000X better

You can't help but compare FPS games of the era to Doom and, when comparing Marathon to Doom, this falls quite short. The levels are short but also somehow slow and drug out. Combat is also pretty slow and very dull; the guns are inaccurate and fairly underpowered, and have pitiful sound effects. In fact, sound is all around pretty dull. The music is terrible, there's little feedback from the environment, level secrets are either insanely well hidden or just non-existent, the enemies are really uninspired, and if you don't want to stop and read every computer terminal page, then there's absolutely no story-driven motivation. I played several hours of this some years back before it came to Steam and was unimpressed, and now that it's on Steam I still feel the same way. It's slow, boring, and uninteresting.