Calendar When: December 26, 1995 all-day Repeats 1995-12-26T00:00:00-05:00 1995-12-27T00:00:00-05:00 On this day... Master Levels for Doom II is an official expansion pack for Doom II which was released on December 26, 1995 by id Software. The CD contains 20 WAD files created by various authors.