Doom: The Dark Ages has just about everything you'd expect in a Doom game. It's got demons, it's got guns, it's got a huge guy who loves to rip and tear.
The one thing it doesn't have is multiplayer: Studio chief Marty Stratton said id Software decided to forego a multiplayer component so it could focus on making the «biggest and best» Doom campaign possible.
Multiplayer holds a prominent place in real life Doom lore: The original game was famously banned from numerous university networks in the US almost immediately after its release because the number of people rushing to try their hands at deathmatch was overwhelming the systems.
And it was great! A lot of people went to a lot of trouble hauling their PCs all over the countryside so they could spend a night exchanging gunfire and trash-talk with friends.
But it was also a very different world then, one without the countless assortment of multiplayer shooter options we can choose from today.