One of the founders of id Software, John Romero, is getting ready to release a new episode for perhaps its most influential game, Doom. The new episode, Sigil II, will be released on December 10 ...

We’ve seen the game running on pregnancy tests, rat brain neurons and even inside of other titles, like the sequel Doom II ...

They also feature a bevy of extra content, including a brand-new Doom II campaign episode, 26 new multiplayer maps, and more. Plus, both games now have cross-play for deathmatch and missions.