List of games with Christmas/holiday themed events/items?

[The Major Gear]

List of games with Christmas/holiday themed events/items
I'm a sucker for Christmas events and items in games. Does anyone know of a list of games (on steam or otherwise) featuring such things? If not then maybe I can make a list here based off suggestions.

The ones I know of so far, or that others below have suggested:
*planetside 2
*unepic
*borderlands 2 dlc
*mmo's like WoW, final fantasy xiv, the secret world
*dota 2, league of legends
*tf2
*saints row 4 dlc
*Killing Floor
*Terraria
*Viscera Cleanup Detail - Santa's Rampage
*Bully - Scholarship Edition
*Cave story - Playing it during the Holiday season gives everything a holiday re-skin
*Dungeon Defenders - hub-world/tavern becomes Christmas themed

I don't know of any event's, but since I'm away from my family this Christmas, it would be cool to hop online and participate in some online holiday themed events. Post if you know of any.

[steven1mac]

Crusader Kings II: Songs of Yuletide

It is free and so is the base game.

[Jazz]

Tales of Maj'Eyal
Demoncrawl
World End Diner
Bloons TD 6

There's also this Christmas themed game that looks cute:

[mdesaleah]

Free Santa outfit dlc.

[feytharn]

Outfits

[76561199418627359]

This thread was quite old before the recent post, so we're locking it to prevent confusion.