Doom is getting a 25th anniversary mod from the game’s co-creator

In celebration of Doom’s 25th anniversary, one of its co-creators has announced a new level pack for the seminal first-person shooter (via Polygon). Sigil, which takes place after the events of Doom’s fourth episode, will be released as a free download in February and features nine single-player and nine multiplayer levels. Two limited edition fan boxes with collectible extras will also be available to purchase.
Sigil is the work of John Romero, who is widely considered to have co-c