The Australian Christmas 2011 Title update for Team Fortress 2 has 13 achievements.
Win 137 Rounds.
Collect three gifts dropped by opponents.
Be part of a team that wins within two minutes.
Capture the final control point within five seconds of your team capturing the previous control point.
Kill a player by pushing them into the cauldron fire.
Achieve 7 of the achievements in the Foundry pack.
Win a round in which the enemy team has attempted to capture your final control point.
Kill two people on the roof of the center control point in a single life.
Get one or more kills as all nine classes in one round.
Play through a back-and-forth battle for 15 control point captures.
Capture a control point within 12 seconds after exiting a teleporter.
Kill an enemy who is capturing a control point with a critical hit.
Play in a game with five or more players from your Friends list.