Doom Zero is a 32-level megawad for Doom II, using DeHackEd to introduce new monsters, created by Christopher Golden (DASI-I) of Iruka Software. It was originally released on September 30, 2019 for the 25th anniversary of Doom II's release, and was given the status of runner-up for the 2019 Cacowards. It has a particular focus on platforming and switch puzzles. On December 15, 2020, it was added to the list of official add-ons for the Doom re-release. It received an award for "Best Unique Twist" from ModDB in 2020.
