Doom II also known as Doom II: Hell on Earth is a first-person shooter game by id Software. It was released for MS-DOS in 1994 and Macintosh in 1995. Unlike the original Doom which was initially only available through shareware and mail order Doom II was sold in stores. Compared to its predecessor Doom II features larger levels new enemies a new Super Shotgun weapon and a new power-up. Master Levels for Doom II an expansion pack with 21 new levels was released on December 26 1995. Another expansion No Rest for the Living which adds nine extra levels was developed for the release of the game on Xbox Live Arcade and is also included in the Doom 3: BFG Edition as part of Doom Classic Complete and as a free add-on for the 2019 Unity engine port of Doom II.