To be honest I don't know where to start with this. It's classic, fun, replayable, and overall the best fun I have ever had playing a video game. It's ironic how even though it was one of the earlier popular fps games, it's better than most fps games that are released now a days that try to prioritize realism, dumb mechanics, and worlds, when fun should really be put first or at least a major thing to be focused on. That's what doom does, and does great at that. Most of the enemies are balanced for this game, the weapons are fun and reliable, the maps are fun, Is the game realistic? Hell no, you don't reload, the maps make no sense in terms of logic and aren't realistic, and yet that's because they really cares about the pure fun of the game. I'm really glad to have played this game because it opened up my eyes on how a game should try to be. I'm not saying every game should be doom. I'm saying that games should try to make the player actually have fun.