Yes, I made this thread to highlight 1 single game, share more if you want.

However, I just found the perfect christmas game to play with the children.

http://www.runestorm.com/visceragame/santa

How about a free christmas game?

Santa Claus in Trouble

I still have a link for that Lemmings clone with Christmas Lemmins if anyone is interested.

Ah, this reminds me of a game I once got for my C64 as a Christmas present: The Official Father Christmas Game.

Mobygames
Lemon64

It was okay, but very short. Took me about half an hour to complete, as I recall.

Well we always play Risk and Monopoly at Christmas - So those are Christmas Games to me. ;-)

This is what I play every year around Christmas: Ski Challenge. :D

Really fun freeware ski simulation where you can also compete on the leaderboard for the current year.

Sorry, it doesn't have anything to do with Christmas, but hey it's the season for it! There is a new version every year, Ski Challenge 14 obviously is the current one, check it out and have fun. :)