The Pyromania Update Title update for Team Fortress 2 has 17 achievements.
Win 138 Rounds.
Have 6 teammates using Pyrovision at the same time.
Play in a game with 5 or more players from your Friends list.
Push a player into the rocket's exhaust path at the end of the round.
Kill 3 players riding the elevator within 10 seconds.
Kill 79 enemies who have Balloonicorn pets.
Achieve 7 of the achievements in the Doomsday pack.
Win a round with at least 5 teammates on the elevator.
Launch the rocket as all 9 classes.
Kill 6 enemies carrying the Australium during the same round.
Ignite 3 enemy players using your Rainblower taunt.
Win a round after the enemy team has opened the rocket lid.
Kill an enemy within the broken crate area while they attempt to pick up the neutral Australium.
Pick up the Australium from its home position and capture it without dropping it.
Kill an enemy who has damaged the Australium carrier in the last 3 seconds.
Have 2 BEST FRIENDS at the same time.
Dominate a player using the Pyrovision Goggles and earn your own pair!