Christmas Lemmings is a series of short computer games released between 1991 and 1994, based on the original Lemmings game released in 1991. First released as Xmas Lemmings as two four-level demos in 1991 and 1992, there were two later full retail releases on the Amiga, PC, and Macintosh in 1993 and 1994, titled Christmas Lemmings in the UK and Holiday Lemmings in the US. The games were developed by DMA Design and published by Psygnosis.
The gameplay remains exactly the same as the original Lemmings game, requiring the player to lead the required number of lemmings to their exit by giving them the appropriate "skills". The original game Lemmings is not required to play any of the Xmas Lemmings games.
The difference between these games and the original game are the Christmas/snow-styled graphics of the levels, and that all the Lemmings wear Santa Claus suits.
Both versions of Xmas Lemmings has only four levels and is a freely available Lemmings demo. The 1991 version has two Christmas levels & two levels from Oh No! More Lemmings. The 1992 version also has four levels, all are Christmas-themed.
Both versions of Christmas/Holiday Lemmings have difficulty ratings "Flurry" and "Blizzard" with 16 levels each. The 1993 version was sold in stores at first, but was later made freely available with the release of the 1994 version (which also was sold in stores). The 1994 version has difficulty ratings "Frost" and "Hail" with 16 levels each, as well as two-player versions of all 64 levels. A freely available "four-level mini-version" was also released to promote both versions of the game.
In late 1995, versions of the game 3D Lemmings came out with 3D Lemmings Winterland included, which is an expansion pack of four levels with wintry graphics. While it isn't particularly Christmas-themed, but rather has the themes from 3D Lemmings disguised, its concept appears to be a conclusion of the Xmas Lemmings games.