John Romero gifts 'Doom' 18 new levels for its 25th birthday
'Sigil' is free, but you can spend $166 on it if you'd like.
johnromero
The creators of 'Doom' and 'Quake' reveal a new sci-fi shooter
John Romero and Adrian Carmack helped define the FPS genre, and 25 years later, they're back with 'Blackroom.'
The first 'Doom' gets a new map from co-creator John Romero
It's his first for the game in 21 years.
