Started this up kind of as a joke, but it actually plays so much better than I imagined. I'm usually of the opinion that ancient games that were so awesome in your memory are best left there, but this one is actually better than I remember. This is probably because back in the 90s, I played Doom with just the keyboard. I naturally sucked and although it was cool I didn't get that far. Now with a mouse, even though you can only aim horizontally, it feels natural very quickly and the combat is so smooth and rewarding. And in case you're new to Doom, this might be confusing... you can actually shoot monsters that are below or above your crosshairs, just make sure they're lined up horizontally and the game will adjust the height automatically for you (actually technically the game is 2-dimensional I believe, it only adds height visually and to determine where you can or can't walk, ID didn't switch to true 3D maps until Quake).

I'm only in the 3rd act out of 4 of Doom 1 (7 hours in), but then there is Doom 2 and I think 4 other packs of maps. If you do enjoy the combat, there is more than enough content to keep you occupied for a long time.

edit: Okay, I do have to nuance my earlier gushing a little bit... Doom 1 is AWESOME. Doom 2 is... okay. Some really good things, but also some really bad. Definitely not the consistent awesomeness that was Doom 1. The master levels is a collection of fan made maps from the 90s that by today's standards are just plain terrible. Evilution I'm only a few maps in but it's just, meh?
Maybe some of the newer map packs are better, but I'm getting a bit tired of slogging through mediocrity to find it. I'd still recommend it to at least play D1 again, but I don't know if I'm actually going to finish all the packs.

Started this up kind of as a joke, but it actually plays so much better than I imagined. I'm usually of the opinion that ancient games that were so awesome in your memory are best left there, but this one is actually better than I remember. This is probably because back in the 90s, I played Doom with just the keyboard. I naturally sucked and although it was cool I didn't get that far. Now with a mouse, even though you can only aim horizontally, it feels natural very quickly and the combat is so smooth and rewarding. And in case you're new to Doom, this might be confusing... you can actually shoot monsters that are below or above your crosshairs, just make sure they're lined up horizontally and the game will adjust the height automatically for you (actually technically the game is 2-dimensional I believe, it only adds height visually and to determine where you can or can't walk, ID didn't switch to true 3D maps until Quake). I'm only in the 3rd act out of 4 of Doom 1 (7 hours in), but then there is Doom 2 and I think 4 other packs of maps. If you do enjoy the combat, there is more than enough content to keep you occupied for a long time. edit: Okay, I do have to nuance my earlier gushing a little bit... Doom 1 is AWESOME. Doom 2 is... okay. Some really good things, but also some really bad. Definitely not the consistent awesomeness that was Doom 1. The master levels is a collection of fan made maps from the 90s that by today's standards are just plain terrible. Evilution I'm only a few maps in but it's just, meh? Maybe some of the newer map packs are better, but I'm getting a bit tired of slogging through mediocrity to find it. I'd still recommend it to at least play D1 again, but I don't know if I'm actually going to finish all the packs.