If you want to get into the christmas mood, you should try these games.
Christmas Lemmings '91 (1991, puzzle)
Christmas Lemmings '92 (1992, puzzle)
Christmas Lemmings '93 (1993, puzzle)
Christmas Lemmings '94 (1994, puzzle)
Duke Nukem 3D: Nuclear Winter (1998, FPS, expantion)
Funny Furries 2 (1999, platform)
Home Alone (1991, puzzle)
Home Alone 2: Lost in New York (1992, puzzle)
Interpose Xmas Greetings (1996, shooter)
Jazz Jackrabbit: Holiday Hare '94 (1994, platform)
Jazz Jackrabbit: Holiday Hare '95 (1995, platform)
Jazz Jackrabbit: Holiday Hare '98 (1998, platform)
Jazz Jackrabbit 2: The christmas chronicles (1999, platform)
Moorhuhn Winter edition (2001, FPS)
Skyroads XMAS-Special (1994, race)
Winter: Olympic Challenge (1991, sports)