John Romero gifts 'Doom' 18 new levels for its 25th birthday
 

Ready to feel ancient? The original Doom is 25 years old -- and co-creator John Romero wants to make sure you know it. He's preparing an add-on for the 1993 game, Sigil, that serves as a "spiritual successor" to the classic shooter's fourth episode (...

https://www.engadget.com/2018/12/10/...gil-expansion/