Team Fortress 2

Win 10 rounds playing PASS Time.

Reveal the mystery of the PASS Time TV Room.

Win 142 Rounds.

Kill 15 enemies while they are capturing a point.

Kill five enemies while they are in the water.

Parachute 19.47 miles.

Parachute 19.47 miles.

Capture the final control point within 15 seconds of your team capturing the previous control point.

While using the Back Scatter, kill 20 friends from behind.

Kill 25 parachuting players with a critical headshot.

Pit 100 robots in Rottenburg.

Melee kill 10 players while they are doing the Square Dance taunt.

Do 10 partner taunts with a teammate while capturing a control point.

Collect 250 ducks.

As a Sniper collect $500 in a mission without running over the currency packs.

While using the Back Scatter, kill 20 spies from behind.

Kill a parachuting player while parachuting.

Win 139 Rounds.

Win 141 Rounds.

While using the Back Scatter, kill a Heavy/Medic pair within 20 seconds of each other.

While using The Classic, kill a rocket/grenade jumping enemy in midair with a full charge, no-scope headshot.

While using The Classic, gib all 9 classes during a single round.

Kill 3 players during the same parachute deploy.

Ignite a player that is being flipped by someone using the Flippin' Awesome taunt.

Kill 30 enemies by bumping their bumper cars off the tracks.

Win 140 Rounds.

Kill 15 enemies in the rafters above the central capture point.

As a team, pit 10 robots in a single wave in Mannhattan.

While using The Classic, kill 10 enemies with a full charge, no-scope headshot.

Kill 3 people with the Air Strike during a single rocket jump.

Win 142 rounds

Ooohh Ooh Ahh Ahhhh! ...in Mannhattan

Kill 3 players during the same parachute deploy.

Kill a parachuting player while parachuting.

Destroy 1,000,000 robots.

Kill a charging Demoman while charging.

Collect 1,000,000 credits in your career.

Play an entire mission as a single class, and do this for every class.

Destroy 100,000 robots.

Play an advanced mission without losing a single gate in Mannhattan.

Kill 500 gate crashing robots in Mannhattan.

Perform 17 environmental kills in Hell

Melee kill 10 Snipers using The Classic.

Kill 15 enemies while under the effect of Merasmus's melee-only curse.

Kill 79 enemies who have Balloonicorn pets.

Complete a mission with 5 people on your Friends List.

As a Spy, sap 10 robots at once.

During a wave, use rage as a Heavy to push a robot about to deliver the bomb.

As a Demoman, kill 10 robots in a single detonation.

As a Pyro, reset the bomb 3 times in a single wave.

Kill 99 skeletons

Lose at Rock, Paper, Scissors 3 times in a row with Rock.

Win at Rock, Paper, Scissors 3 times in a row with Scissors.

Achieve 100,000 YouTube™ views for your movie.

During a wave, defend the hatch 10 times from robots about to deliver a bomb.

Send Redmond/Blutarch to Hell 10 times

While rocket jumping, use a rocket to kill a rocket jumping enemy who also kills you with a rocket.

As a team, kill 50 stunned radiowave robots in an advanced mission in Mannhattan.

Block 5,000 damage with the shield as a Medic in a single life.

Kill 10 parachuting players.

Win 138 Rounds.

Ignite 3 enemy players using your Rainblower taunt.

Use spells to kill 25 players

Kill 5 robots in a single explosion from detonating a sentry buster.

Use one ÜberCharge to quickly revive 2 teammates within 5 seconds.

Repair 50,000 damage to friendly buildings constructed by other players.

Achieve 10,000 YouTube™ views for your movie.

Win 137 Rounds.

Respawn 30 ghost teammates during bumper car games.

As a Medic, share your canteen 5 times in a single wave.

Launch the rocket as all 9 classes.

Earn all credit bonuses in an advanced difficulty mission.

Use a canteen charged with 'Teleport to Spawn' and then kill the bomb carrier within 5 seconds.

As a Scout, use the Sandman to mark 15 robots for death in a single wave.

Wipe the other team with 12 or more players on the server.

Kill 5 robots with a single rocket while upgraded with rocket specialist.

Kill 3 players who are doing the Conga within 5 seconds.

Do 1 million points of total blast damage.

Rack up 5000 kills with your sentry guns.

During a wave, use a canteen charged with 'Instant Building Upgrade' to build a new sentry gun within 3 seconds of your previous sentry gun's destruction.

Kill 5 Medics that are ready to deploy an ÜberCharge in a wave.

Play an advanced wave in Rottenburg without the bomb entering the town.

Do 1 million points of total fire damage.

Destroy 50 enemy stickybombs lying in range of friendly buildings.

Score 3 goals in bumper car soccer.

Win a round in which the enemy team has attempted to capture your final control point.

Kill 50 enemies while both you and your victim are underwater.

Destroy 100 enemy stickybombs with the Scottish Resistance.

Complete the Crash Course, Doe's Drill, and Mann-euvers missions.

Backstab a Scout that is using the Back Scatter.

Win a round in which the enemy team has attempted to capture your final control point.

Accumulate 1 million total heal points.

Destroy 1000 Engineer buildings with sappers.

Earn 4 of the Carnival of Carnage achievements.

Kill 20 spies within 5 seconds of them sapping a friendly building.

Accumulate 10000 heal points health in a single life.

Get 1000 assists.

Stun 50 enemies while they are capturing a point or pushing the cart.

Kill 20 enemies with your Equalizer while you have less than 25 health.

Kill 10 Snipers with a sentry gun under control of your Wrangler.

Get 3 kills within 6 seconds using the Demoman charge.

Collect enough casualties to get the max clip for the Air Strike.

Kill 500 enemy Demomen

Kill 500 enemy Soldiers

Kill 3 enemies capping or pushing a cart in a single stickybomb detonation 3 separate times.

Kill 20 players carrying the intelligence.

Have dispensers you created dispense a combined amount of 100,000 health over your career.

Kill 10 enemies carrying your intelligence.

Destroy an enemy Engineer's sentry gun with a sentry under control of your Wrangler.

Kill a tank before it crashes through the barrier in Rottenburg.

Kill 10 Heavies with The K.G.B.

Kill 5 enemies with the First Blood crit buff in an Arena match.

While using the Ambassador, kill 20 Snipers with a headshot.

Perform 50 repairs and/or reloads on a Sentry gun being Wrangled by another Engineer.

Earn 4 of the Helltower achievements

Win each of the 3 bumper car games to earn a bonus Halloween Gift Cauldron.

Kill 50 Scouts using Natascha.

As a Sniper, kill 4 robots simultaneously.

Kill or assist kill 50 enemies while they are stunned or slowed.

Block 50 point captures.

Kill 3 cloaked Spies with a sentry gun under control of your Wrangler.

ÜberCharge 5 of your Steam Community Friends.

Get 2004 lifetime kills.

Backstab 50 enemies who are capturing control points.

Play in a game with five or more players from your Friends list.

Kill 6 enemies carrying the Australium during the same round.

Top the scoreboard 10 times on teams of 6 or more players.

Kill 30 players with air burst stickybombs.

Push a player into the rocket's exhaust path at the end of the round.

Destroy two tanks within 5 seconds of each other.

Use a canteen charged with 'ÜberCharge' to destroy 15 robots.

Kill 50 Scouts with your syringe gun.

Kill 50 enemies within 3 seconds of them attacking your Medic.

Block the enemy from moving the payload cart 25 times.

Backstab 1000 enemies.

Buff 5 Steam friends at once with the Buff Banner.

Play in a game with five or more players from your Friends list.

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.

Get one or more kills as all nine classes in one round.

Kill two people on the roof of the center control point in a single life.

Kill 3 players riding the elevator within 10 seconds.

During a wave, use a canteen charged with 'Ammo Reload' to refill an empty weapon slot.

Accumulate 7000 heal points in a single life.

Kill 50 Heavies with your flamethrower.

Kill 10 enemies while you're both underwater.

Finish a round as an MVP on a team of 6 or more players 10 times.

Destroy 5 enemy Engineer buildings during a single ÜberCharge from a Medic.

Pick up 10,000 waste metal from pieces of destroyed buildings.

Achieve 1000 YouTube™ views for your movie.

Capture a control point within 12 seconds after exiting a teleporter.

Buff 4 or more teammates as a Soldier at the same time in a single wave.

Do the Conga with 10 or more players at the same time.

Assist in destroying 5 enemy Engineer buildings with a single ÜberCharge on a Demoman.

Kill 10 enemies outside the normal sentry gun range using the Wrangler.

Craft the Saxton Hale Mask.

Achieve 100 YouTube™ views for your movie.

Win a round with at least 5 teammates on the elevator.

Assist in killing 20 nemeses.

While invulnerable and on defense, block an invulnerable enemy Heavy's movement.

Provide an enemy with a freezecam shot of you taunting while invulnerable.

Destroy 10 stickybombs with the shotgun in a single life.

Play through a back-and-forth battle for 15 control point captures.

Play a complete game on 2Fort, Dustbowl, Granary, Gravel Pit, Hydro, and Well (CP).

Kill a player in Well before the round starts.

Jarate and then kill 3 enemies with your Kukri.

Kill 5 stunned or slowed players.

Gib 1000 people.

Render a replay into a movie.

Kill an enemy within the broken crate area while they attempt to pick up the neutral Australium.

Kill 25 enemies while you're standing on a control point you own.

Provide an enemy with a freezecam shot of you flicking a cigarette onto their corpse.

Keep a Heavy healed with your dispenser while he gains 5 kills.

Stun 50 robots while upgraded with rocket specialist.

Assist in killing 3 enemies with a single ÜberCharge on a Scout.

Kill 3 enemies while under the effects of a Medic's ÜberCharge.

Kill a Heavy & Medic pair with the bow.

Provide the enemy with a freezecam of you taunting over 3 of their body parts.

Get a melee kill while sticky jumping.

Have a sentry shielded by the Wrangler absorb 500 damage without being destroyed.

Destroy 25 sappers on buildings built by other team members.

Assist in punching 2 enemies with a single ÜberCharge on a Heavy.

Assist in exploding 5 enemies with a single ÜberCharge on a Soldier.

Eat 100 sandviches.

Kill 50 enemies from behind with the Force-A-Nature.

Kill 3 Heavies from full health with a single stickybomb detonation.

Sticky jump onto a cap point and capture it.

Provide an enemy player with a freezecam of you shaking your rump.

Using the Scottish Resistance, kill 3 players in separate explosions without placing new stickybombs.

Win a round in which the enemy team has attempted to capture your final control point.

Kill 10 Medics with your bone saw.

Use your shotgun to finish off 20 players you've ignited.

Ignite an enemy Spy while he's flicking a cigarette.

Kill 15 enemies who are standing on a control point they own.

Defend a cap point 30 times.

Get 50 caps on payload maps.

Cause an environmental death by stunning or slowing an enemy.

Use a sentry gun to kill 25 enemy players that are capturing a point.

Use a canteen charged with 'Crit Boost' to destroy a giant robot.

Kill 15 enemies capturing a control point you own.

Stun 2 Medics that are ready to deploy an ÜberCharge.

Kill 1000 enemies.

Score 5 assists with the Jarate in a single round.

Backstab your Steam Community friends 10 times.

Destroy the tank during the final seconds of the bomb being deployed.

Get the loot from Skull Island in Hell

Play in a game with five or more players from your Friends list.

Kill 50 enemies with the Ambassador.

Cause the deaths of 5 players by exploding nearby pumpkin bombs.

Dominate 3 Engineers.

Kill 2 people in a single sticky jump.

Kill 25 players defending a capture point or cart.

Kill an enemy who is capturing a control point with a critical hit.

Stun a Scout with their own ball.

Buff 15 teammates with the Buff Banner in a single life.

Kill 3 players with the Equalizer in a single life without being healed.

Assist a Medic in exploding 5 enemies with a single ÜberCharge.

Blow up an Engineer, his sentry gun, and his dispenser with a single stickybomb detonation.

While watching a replay, press space bar to enter the editor.

Get the first kill in an Arena or Competitive match.

Capture the enemy intelligence 25 times.

Headshot 3 Scouts with the Ambassador.

Provide an enemy player with a freezecam of your guitar playing skills.

Pick up the Australium from its home position and capture it without dropping it.

Prevent the bomb from ever reaching an alarm zone during the final wave of an advanced difficulty mission.

Provide the enemy with a freezecam of your 21 gun salute.

Achieve 7 of the achievements in the Doomsday pack.

Max out all primary weapon upgrades.

Get and use a rare spell

Kill 20 players while double-jumping.

Upgrade 50 buildings built by other team members.

Destroy a tank within 20 seconds of its arrival.

Max out all resistances on a single class.

Provide an enemy with a freezecam shot of you taunting above their ragdoll.

Heal 1000 damage with med-kits in a single life.

Destroy 50 buildings.

Achieve 7 of the achievements in the Foundry pack.

Win a round after the enemy team has opened the rocket lid.

Assist in killing 3 enemies on an enemy control point, in a single life.

ÜberCharge 2 teammates at once.

Kill 1000 enemies.

Work with a friendly Medic to kill an enemy Heavy & Medic pair.

Get ÜberCharged 50 times.

Backstab an Engineer, then sap 3 of his buildings within 10 seconds.

Decapitate an enemy Soldier who is brandishing the Equalizer.

Kill an enemy that you couldn't see at the beginning of your charge.

Kill your nemesis with a shovel.

Kill an enemy player with stickybombs within 5 seconds of them teleporting.

Smash an enemy player's head in with your guitar.

Get to Skull Island and claim your reward!

Kill 20 enemies while being recharged by a dispenser.

Stun an enemy for the maximum possible duration by hitting them with a long-range ball.

Bat an enemy 25 meters.

Kill 3 enemies with revenge crits without dying.

Get to Loot Island and claim your reward!

Be part of a team that wins within two minutes.

Save a falling teammate from dying on impact.

Ignite 50 enemies capturing one of your control points.

In a single life, kill an enemy while you are on the ground, in the air, and in the water.

Kill at least three players with a single detonation of stickybombs.

Have dispensers you built extinguish 20 burning players.

In a single life, kill 3 enemies while they are achieving an objective.

Spend some time editing a replay.

Deploy an ÜberCharge on a teammate less than a second before they're hit by a critical explosive.

Win Hydro without giving up a capture.

Use your bonesaw to kill a spy who has been calling for 'Medic!'.

Destroy 50 Engineer buildings.

Take down an intelligence carrier with a single arrow.

Provide an enemy player with a freezecam of your smiling face.

Collect the Horseless Headless Horsemann's Haunted Metal.

Assist a fellow Medic in killing 3 enemies in a single life.

Assist in burning 5 enemies with a single ÜberCharge on a Pyro.

Kill MERASMUS!

Extinguish 100 burning teammates.

Get backstabbed 50 times.

Get 3 dominations in a single life.

Work with 2 other Medics to deploy 3 simultaneous ÜberCharges.

Successfully defend Gravel Pit without giving up a capture.

Reflect 100 projectiles with your compressed air blast.

Dodge 1000 damage in a single life using your Bonk! Atomic Punch.

Rocket jump and kill 2 enemies before you land.

As an Engineer, escape with your sentry as a sentry buster is about to detonate.

Heal 200 teammates after they've called for 'Medic!'.

Kill 6 people with your axe in one life.

Kill 3 enemies while they're taunting.

Provide enemies with freezecam shots of each of your taunts.

Kill 10 enemies with a Medic assisting you, where neither of you die.

Kill an enemy who has damaged the Australium carrier in the last 3 seconds.

Jarate 4 enemy players with a single throw.

Use a grenade to gib a player.

Kill 25 Scouts and Pyros with the Grenade Launcher.

Kill 2 enemies in a single life, while having your ÜberCharge ready, but undeployed.

Ignite 5 Spies who have a sapper on a friendly building.

Kill a spy whose backstab attempt was blocked by your Razorback.

Start capping a capture point within a second of it becoming available.

Glory in the slaughter of your enemies using the Eyelander.

Teleport 100 team members into battle.

Collect a Soul Gargoyle in Mann Manor.

Kill MONOCULUS!

Play a full round without killing any enemies, and score the highest on a team of 6 or more players.

Kill an enemy Heavy and take his Sandvich.

Provide an enemy with a freezecam shot of you doffing your hat.

Ride the cart for 30 seconds.

Have 6 teammates using Pyrovision at the same time.

Assist a Heavy in killing 10 enemies, where neither of you die.

Remove 20 stickybombs by killing the Demomen who produced them.

Kill 10 Spies with your Kukri.

Hit enemies with your bonesaw 5 times in a row without dying or missing.

Kill an opposing player that has your intelligence while holding theirs.

While using the Cloak and Dagger, kill the same enemy 3 times, all within the same area in a single life.

Collect 20 Halloween pumpkins from dead players to unlock a hat.

Kill 3 enemies with a single critical rocket.

Kill 3 defenseless players after a single match has ended.

Decapitate 50 enemy players.

Decapitate 4 players with only 10 seconds between each kill.

Ignite 100 enemies with the flare gun.

Kill a Scout while they are under the effect of Crit-a-Cola.

Stab an enemy with an arrow.

Sap an enemy sentry gun within 3 seconds of a teammate sapping another.

Block the enemy from capturing a control point with an ÜberCharged teammate.

Achieve 22 of the achievements in the Medic pack.

Kill 500 enemies.

Achieve 22 of the achievements in the Scout pack.

Capture three capture points in a row in one life.

Jarate an enemy that you're dominating.

Pin an enemy Heavy to the wall via his head.

Stab an enemy while fencing.

Kill an enemy while you're being healed by an enemy Medic.

Kill 20 enemies while you are on fire.

Help a single building tank over 2000 damage without being destroyed.

Get 20 kills on players that you're dominating.

Jarate an enemy and the Medic healing him.

While rocket jumping kill an enemy with the Equalizer before you land or just after landing.

Kill 10 opponents who are airborne with the Direct Hit.

Haul buildings 1 km over your career.

Get 25 enemy kills where you either assist or are assisted by another Heavy.

Cause an environmental death or suicide using the Force-A-Nature's knockback.

Headshot an enemy player the moment his invulnerability wears off.

Sticky jump a really long way...

Kill a spy and two sappers within 10 seconds.

Help 5 teammates get revenge on their nemeses.

Use the Sticky Launcher to kill an enemy player via environmental damage.

Save your very first replay.

Ignite 5 enemies carrying your intelligence.

Achieve 22 of the achievements in the Heavy pack.

Destroy 3 teleporter entrances.

Provide an enemy with a freezecam shot of you waving to them.

Decapitate your nemesis.

Ignite 10 enemies that have recently used a teleporter.

Kill an enemy with a taunt.

Kill or assist in killing 10 cloaked Spies.

Use Jarate to reveal a cloaked Spy.

Kill a player scared by a ghost.

Kill 50 enemies with direct hits from the Grenade Launcher.

Kill an enemy Spy that you have been healing.

Kill 3 enemies in a single ÜberCharge.

Kill 5 Engineer sentries while you are standing outside of their range.

Manage to get to and then remove a sapper placed on your building while you were several meters away.

Kill the Horseless Headless Horsemann.

Stab an enemy to death while under the influence of Jarate.

Kill 20 enemies from above.

Achieve 17 of the achievements in the Demoman pack.

Use a revenge crit to kill the enemy player that destroyed your sentry gun.

Force 10 burning enemies to jump into water.

Capture the enemy intelligence 3 times in a single CTF round.

Initiate 10 point captures that ultimately succeed.

Capture the flag in CTF.

Achieve 16 of the achievements in the Medic pack.

Achieve 16 of the achievements in the Scout pack.

Backstab an enemy and the Medic healing him within 10 seconds of each other.

Kill 10 enemies while assisting or being assisted by another Demoman.

Kill an enemy with a taunt.

Backstab 3 Snipers in a single life.

Charge and kill someone with your shield bash.

Defeat a wave in an advanced difficulty mission without dying once.

Win Well in 5 minutes or less.

Kill 3 people with your axe in one life.

Decapitate a cloaked Spy.

Use a critical swing with the Eyelander to kill 5 enemy players.

Fire $200,000 worth of minigun rounds in a single life.

Destroy 3 enemy buildings while they are still under construction.

Destroy an active sentry gun using your pistol.

Perform 1000 double jumps.

Extinguish a burning teammate with your Jarate.

Backstab a Medic who has healed you in the last 5 seconds.

Have 2 BEST FRIENDS at the same time.

Start capping a capture point within a second of it becoming available.

Kill 50 enemies with your flamethrower, from behind.

Kill a Sniper after your backstab breaks his Razorback.

Kill an enemy who triggered your feign death in the last 20 seconds.

Achieve 17 of the achievements in the Soldier pack.

Bounce an opponent into the air with a rocket and then kill them with the shotgun before they land.

Achieve 17 of the achievements in the Engineer pack.

Play a complete round with every class.

Successfully defend Dustbowl without giving up a capture.

Achieve 16 of the achievements in the Heavy pack.

Kill a Soldier with a reflected critical rocket.

Sap an enemy building, then backstab the Engineer who built it within 5 seconds.

Dominate a Sniper.

Ignite 10 Snipers while they are zoomed in.

Achieve 22 of the achievements in the Pyro pack.

Achieve 11 of the achievements in the Demoman pack.

Kill an enemy in the first 5 seconds after you exit a teleporter.

Kill an enemy sniper with a rocket after he kills you.

Kill a charging Demoman.

Complete all waves successfully in a mission.

Destroy a sentry buster before it reaches its target.

Hit an enemy with 3 arrows, without killing them.

Kill an enemy with your shotgun while you're out of minigun ammo.

Achieve 10 of the achievements in the Scout pack.

Achieve 17 of the achievements in the Spy pack.

Achieve 10 of the achievements in the Medic pack.

Kill a Medic that is ready to deploy an ÜberCharge.

Kill a disguised spy with your Wrench.

Complete each class to unlock the next.

Backstab a Medic that is ready to deploy an ÜberCharge.

Destroy an Engineer building that you can't see with a direct hit from your Grenade Launcher.

Collect three gifts dropped by opponents.

Join a game that one of your friends is in and then deploy an ÜberCharge on him.

Kill a Spy disguised as your current class.

Kill an Engineer as he repairs his sentry gun while it's under enemy fire.

Kill 10 enemies while assisting or being assisted by another Soldier.

Achieve 11 of the achievements in the Soldier pack.

Achieve 17 of the achievements in the Sniper pack.

Kill 15 players while you're dead.

Get 5 kills with the Sniper Rifle without your scope.

Backstab an enemy who is dominating 3 or more of your teammates.

Accumulate 25000 heal points as a Medic.

Achieve 16 of the achievements in the Pyro pack.

Achieve 10 of the achievements in the Heavy pack.

Kill a rocket or grenade-jumping enemy in midair with your Sniper Rifle or the Huntsman.

Backstab a disguised Spy.

Pick up a credit pile that is about to expire.

Accumulate 1000 total kills.

Achieve 5 of the achievements in the Demoman pack.

Achieve 11 of the achievements in the Engineer pack.

Kill 5 enemies without spinning down your gun.

Accumulate 10 sentry gun kills with a single sentry.

Deploy 3 ÜberCharges in less than 5 minutes, and assist in 5 kills during that time.

Deploy an ÜberCharge within 8 seconds of a nearby enemy Medic deploying his.

Ignite 3 Medics that are ready to deploy an ÜberCharge.

Achieve 11 of the achievements in the Spy pack.

Cause a dominated player to leave the server.

Kill a Pyro who has airblasted one of your rockets in the last 10 seconds.

Kill an enemy with a critical punch.

Kill a Medic that is ready to deploy an ÜberCharge.

Earn a domination for a Medic who's healing you.

Steal and then capture the enemy intelligence without firing a shot.

Kill an Engineer who is working on a sentry gun.

Capture the last point in a CP map.

Earn a credit bonus at the end of a wave.

Kill a gun-wielding Spy with your knife.

Get 10 assists with another Engineer where a sentry gun was involved in the kill.

Repair a sentry gun under fire while being healed by a Medic.

Ignite 10 cloaked Spies.

Shoot two non-boosted crit rockets in a row.

Backstab an enemy, who then switches to Pyro before they respawn.

Destroy 3 Engineer sentry guns.

Ignite 10 disguised Spies.

Use your shotgun to finish off an enemy recently damaged by your sentry gun.

Achieve 10 of the achievements in the Pyro pack.

Survive 500 damage in one life.

Haul a level 3 sentry gun into a position where it achieves a kill shortly after being redeployed.

Be healing a teammate as he achieves an achievement of his own.

Kill an enemy with an arrow while you're dead.

Achieve 11 of the achievements in the Sniper pack.

Heal an Engineer as he repairs his sentry gun while it's under enemy fire.

Heal a teammate who's taking fire from 4 enemies at once.

Be the first on your team to start capturing a control point in a round.

Get a Revenge kill with a backstab.

Achieve 5 of the achievements in the Soldier pack.

Kill a Spy who just backstabbed a teammate.

Survive a direct hit from a critical rocket.

Kill an opponent within the first second of a round.

Backstab the enemy that you're currently disguised as.

In a single wave, kill 15 bomb-carrying robots in a row before they level up.

Headshot 10 enemy Snipers.

Dominate an enemy Sniper.

Ignite a rocket-jumping Soldier while he's in midair.

In a team with no Medics, be the first person to switch to Medic after a teammate calls for 'Medic!', and then heal 500 health.

Backstab 3 enemies within 10 seconds.

Get 25 headshots as a Sniper.

Achieve 5 of the achievements in the Spy pack.

Kill a fully invisible Spy in a single hit.

Kill an enemy soldier while both you and the target are airborne.

Survive 30 seconds after being ignited while cloaked.

Have an ÜberCharge ready before the Setup phase ends.

Win 2Fort with a shutout.

Win 20 games.

Achieve 5 of the achievements in the Engineer pack.

Dominate a player using the Pyrovision Goggles and earn your own pair!

Have your sentry kill the enemy that just killed you within 10 seconds.

Get the highest possible rocket jump using jump and crouch.

Help a teammate construct a building.

Have 2 enemy Scouts on fire at the same time.

In a single life, kill 3 enemies who have damaged a Medic that is healing you.

In a single round, get a kill with 3 different weapons.

Jump into a pool of refreshing water while on fire.

Achieve 5 of the achievements in the Sniper pack.

Provide an enemy player with a freezecam of you and the sentry that just killed them.

Trick an opposing Medic into healing you.

While cloaked, bump into an enemy cloaked Spy.

Kill an enemy within 5 seconds of you traveling through an Engineer's teleporter.

Get 3 kills with the Sniper Rifle without missing a shot.

Headshot an enemy Demoman.

Dominate a player wearing any achievement Gibus hat to earn your own Ghostly Gibus.

Have a dispenser heal 3 teammates at the same time.

Kill 10 enemies in mid-air with the minigun.

In a single life, get shot, burned, bludgeoned, and receive explosive damage.

Kill an enemy in the same second that he kills you.

Kill a burning enemy who was ignited by another Pyro.

Bounce an enemy into the air and kill them before they land.

Kill a Scout in midair with your Sniper Rifle or the Huntsman.

Get five revenge kills.

Ignite an enemy, and the Medic healing him.

Set five enemies on fire in 30 seconds.

Kill 3 enemies in a row, all within the same area.

Get five kills in a row without dying.

Take 1000 points of damage in a single life.

Run 25 kilometers.