Kill a gun-wielding Spy with your knife.
While cloaked, bump into an enemy cloaked Spy.
Kill an enemy in the same second that he kills you.
Provide an enemy player with a freeze cam of you and the sentry that just killed them.
Ignite an enemy, and the Medic healing him.
Run 25 kilometers.
Survive a direct hit from a critical rocket.
Take 1000 points of damage in a single life.
Capture the last point in a CP map.
Bounce an enemy into the air and kill them before they land.
Collect three gifts dropped by opponents.
Play a complete round with every class.
Play a complete game on 2Fort, Dustbowl, Granary, Gravel Pit, Hydro, and Well (CP).
Accumulate 25000 heal points as a Medic.
Set five enemies on fire in 30 seconds.
Accumulate 10 sentry gun kills with a single sentry.
Get five revenge kills.
Get five kills in a row without dying.
Trick an opposing Medic into healing you.
Play in a game with 7 or more players from your Friends list.
Win 20 games.
Accumulate 1000 total kills.
Get 25 headshots as a Sniper.
Play a full round without killing any enemies, and score the highest on a team of 6 or more players.
Heal a teammate who's taking fire from 4 enemies at once.
Work with 2 other Medics to deploy 3 simultaneous ÜberCharges.
Have an ÜberCharge ready before the Setup phase ends.
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.
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.
Deploy an ÜberCharge on a teammate less than a second before they're hit by a critical explosive.
Block the enemy from capturing a control point with an ÜberCharged teammate.
Assist a fellow Medic in killing 3 enemies in a single life.
Kill 50 Scouts with your syringe gun.
Kill 10 Medics with your bone saw.
Assist a Heavy in killing 10 enemies, where neither of you die.
Assist in killing 3 enemies with a single ÜberCharge on a Scout.
Assist in burning 5 enemies with a single ÜberCharge on a Pyro.
Assist in punching 2 enemies with a single ÜberCharge on a Heavy.
Assist in destroying 5 enemy Engineer buildings with a single ÜberCharge on a Demoman.
Heal an Engineer as he repairs his sentry gun while it's under enemy fire.
Assist in killing 3 enemies on an enemy control point, in a single life.
Heal 200 teammates after they've called for 'Medic!'.
Win 2Fort with a shutout.
Win Well in 5 minutes or less.
Win Hydro without giving up a capture.
Successfully defend Dustbowl without giving up a capture.
Successfully defend Gravel Pit without giving up a capture.
Extinguish 100 burning teammates.
Assist in killing 20 nemeses.
Kill 2 enemies in a single life, while having your ÜberCharge ready, but undeployed.
Hit enemies with your bonesaw 5 times in a row without dying or missing.
Accumulate 7000 heal points in a single life.
Accumulate 10000 heal points health in a single life.
Accumulate 1 million total heal points.
Kill an enemy Spy that you have been healing.
Save a falling teammate from dying on impact.
ÜberCharge 2 teammates at once.
Provide an enemy with a freezecam shot of you taunting above their ragdoll.
Use your bonesaw to kill a spy who has been calling for 'Medic!'.
ÜberCharge 5 of your Steam Community Friends.
Join a game that one of your friends is in and then deploy an ÜberCharge on him.
Be healing a teammate as he achieves an achievement of his own.
Assist in exploding 5 enemies with a single ÜberCharge on a Soldier.
Achieve 10 of the achievements in the Medic pack.
Achieve 16 of the achievements in the Medic pack.
Achieve 22 of the achievements in the Medic pack.
Use your shotgun to finish off 20 players you've ignited.
Have 2 enemy Scouts on fire at the same time.
Force 10 burning enemies to jump into water.
Kill 15 players while you're dead.
Ignite 5 Spies who have a sapper on a friendly building.
Ignite 5 enemies carrying your intelligence.
Ignite 10 cloaked Spies.
Ignite 10 enemies that have recently used a teleporter.
Kill 3 enemies in a row, all within the same area.
Kill 3 people with your axe in one life.
Kill 6 people with your axe in one life.
Ignite 10 disguised Spies.
Ignite 10 Snipers while they are zoomed in.
Ignite 3 Medics that are ready to deploy an ÜberCharge.
Kill 50 Heavies with your flamethrower.
Kill 10 enemies while you're both underwater.
Kill 3 enemies in a single ÜberCharge.
Destroy 50 Engineer buildings.
Ignite 50 enemies capturing one of your control points.
Kill 500 enemies.
Do 1 million points of total fire damage.
Kill an enemy with a taunt.
Ignite an enemy Spy while he's flicking a cigarette.
Cause a dominated player to leave the server.
Kill 3 enemies while they're taunting.
Ignite a rocket-jumping Soldier while he's in midair.
Provide enemies with freezecam shots of each of your taunts.
Kill 50 enemies with your flamethrower, from behind.
Kill a burning enemy who was ignited by another Pyro.
Kill a Soldier with a reflected critical rocket.
Kill 1000 enemies.
Ignite 100 enemies with the flare gun.
Reflect 100 projectiles with your compressed air blast.
Achieve 10 of the achievements in the Pyro pack.
Achieve 16 of the achievements in the Pyro pack.
Achieve 22 of the achievements in the Pyro pack.
Achieve 10 of the achievements in the Heavy pack.
Achieve 16 of the achievements in the Heavy pack.
Achieve 22 of the achievements in the Heavy pack.
Kill 50 enemies within 3 seconds of them attacking your Medic.
Kill 10 enemies with a Medic assisting you, where neither of you die.
Earn a domination for a Medic who's healing you.
Kill 10 enemies carrying your intelligence.
Work with a friendly Medic to kill an enemy Heavy & Medic pair.
While invulnerable and on defense, block an invulnerable enemy Heavy's movement.
Block the enemy from moving the payload cart 25 times.
Get ÜberCharged 50 times.
Kill 20 enemies while being recharged by a dispenser.
Get 25 enemy kills where you either assist or are assisted by another Heavy.
Remove 20 stickybombs by killing the Demomen who produced them.
Kill 50 enemies while both you and your victim are underwater.
In a single life, get shot, burned, bludgeoned, and receive explosive damage.
Get 20 kills on players that you're dominating.
Get 1000 assists.
Kill or assist in killing 10 cloaked Spies.
Kill 5 enemies without spinning down your gun.
Fire $200,000 worth of minigun rounds in a single life.
Kill an enemy with a critical punch.
Heal 1000 damage with med-kits in a single life.
Kill an enemy with your shotgun while you're out of minigun ammo.
Be the first on your team to start capturing a control point in a round.
Get 50 caps on payload maps.
Kill 10 enemies in mid-air with the minigun.
Kill 25 enemies while you're standing on a control point you own.
Kill 15 enemies capturing a control point you own.
Help 5 teammates get revenge on their nemeses.
Kill an enemy in the first 5 seconds after you exit a teleporter.
Provide an enemy with a freezecam shot of you taunting while invulnerable.
Eat 100 sandviches.
Kill 50 Scouts using Natascha.
Kill 10 Heavies with The K.G.B.
Get the first kill in an Arena or Competitive match.
Kill 5 enemies with the First Blood crit buff in an Arena match.
Kill a player in Well before the round starts.
Get 2004 lifetime kills.
In a single life, kill an enemy while you are on the ground, in the air, and in the water.
Destroy 3 teleporter entrances.
Destroy 3 enemy buildings while they are still under construction.
Destroy an active sentry gun using your pistol.
Achieve 10 of the achievements in the Scout pack.
Achieve 16 of the achievements in the Scout pack.
Achieve 22 of the achievements in the Scout pack.
Perform 1000 double jumps.
Kill 3 enemies while under the effects of a Medic's ÜberCharge.
Kill an enemy Heavy and take his Sandvich.
Kill a Medic that is ready to deploy an ÜberCharge.
Survive 500 damage in one life.
Kill 20 players while double-jumping.
Capture the enemy intelligence 25 times.
Capture the enemy intelligence 3 times in a single CTF round.
Dodge 1000 damage in a single life using your Bonk! Atomic Punch.
Cause an environmental death or suicide using the Force-A-Nature's knockback.
Kill or assist kill 50 enemies while they are stunned.
Cause an environmental death by stunning an enemy.
Stun 2 Medics that are ready to deploy an ÜberCharge.
Stun 50 enemies while they are capturing a point or pushing the cart.
Stun an enemy for the maximum possible duration by hitting them with a long-range ball.
Stun a Scout with their own ball.
Kill a Scout while they are under the effect of Crit-a-Cola.
Kill 50 enemies from behind with the Force-A-Nature.
Capture three capture points in a row in one life.
Start capping a capture point within a second of it becoming available.
Initiate 10 point captures that ultimately succeed.
Block 50 point captures.
Kill an opposing player that has your intelligence while holding theirs.
Steal and then capture the enemy intelligence without firing a shot.
Bat an enemy 25 meters.
Jarate an enemy that you're dominating.
Provide an enemy with a freezecam shot of you doffing your hat.
Get 3 kills with the Sniper Rifle without missing a shot.
Capture the flag in CTF.
In a single round, get a kill with 3 different weapons.
Headshot 10 enemy Snipers.
Destroy 3 Engineer sentry guns.
Kill a fully invisible Spy in a single hit.
Kill a Scout in midair with your Sniper Rifle or the Huntsman.
Provide an enemy with a freezecam shot of you waving to them.
Dominate an enemy Sniper.
Kill 10 Spies with your Kukri.
Headshot an enemy Demoman.
Kill a rocket or grenade-jumping enemy in midair with your Sniper Rifle or the Huntsman.
In a single life, kill 3 enemies while they are achieving an objective.
Get 5 kills with the Sniper Rifle without your scope.
Get backstabbed 50 times.
Kill an opponent within the first second of a round.
Headshot an enemy player the moment his invulnerability wears off.
Top the scoreboard 10 times on teams of 6 or more players.
Kill a spy whose backstab attempt was blocked by your Razorback.
Jarate 4 enemy players with a single throw.
Jarate an enemy and the Medic healing him.
Use Jarate to reveal a cloaked Spy.
Extinguish a burning teammate with your Jarate.
Pin an enemy Heavy to the wall via his head.
Kill a Heavy & Medic pair with the bow.
Take down an intelligence carrier with a single arrow.
Hit an enemy with 3 arrows, without killing them.
Score 5 assists with the Jarate in a single round.
Jarate and then kill 3 enemies with your Kukri.
Stab an enemy with an arrow.
Kill an enemy with an arrow while you're dead.
Backstab 3 Snipers in a single life.
Provide an enemy with a freezecam shot of you flicking a cigarette onto their corpse.
Backstab a disguised Spy.
Backstab the enemy that you're currently disguised as.
Stab an enemy while fencing.
Backstab a Medic who has healed you in the last 5 seconds.
Backstab an Engineer, then sap 3 of his buildings within 10 seconds.
Sap an enemy building, then backstab the Engineer who built it within 5 seconds.
Backstab an enemy and the Medic healing him within 10 seconds of each other.
Backstab your Steam Community friends 10 times.
Dominate a Sniper.
Survive 30 seconds after being ignited while cloaked.
Kill a Sniper after your backstab breaks his Razorback.
Kill an Engineer who is working on a sentry gun.
Kill an enemy while you're being healed by an enemy Medic.
Kill 15 enemies who are standing on a control point they own.
Backstab an enemy who is dominating 3 or more of your teammates.
Get a Revenge kill with a backstab.
Stab an enemy to death while under the influence of Jarate.
Backstab 3 enemies within 10 seconds.
Backstab 1000 enemies.
Destroy 1000 Engineer buildings with sappers.
Sap an enemy sentry gun within 3 seconds of a teammate sapping another.
Backstab a Medic that is ready to deploy an ÜberCharge.
Backstab 50 enemies who are capturing control points.
Backstab an enemy, who then switches to Pyro before they respawn.
Kill 50 enemies with the Ambassador.
Headshot 20 Snipers with the Ambassador.
Kill an enemy who triggered your feign death in the last 20 seconds.
Headshot 3 Scouts with the Ambassador.
While using the Cloak and Dagger, kill the same enemy 3 times, all within the same area in a single life.
Achieve 5 of the achievements in the Sniper pack.
Achieve 11 of the achievements in the Sniper pack.
Achieve 17 of the achievements in the Sniper pack.
Achieve 5 of the achievements in the Spy pack.
Achieve 11 of the achievements in the Spy pack.
Achieve 17 of the achievements in the Spy pack.
Collect 20 Halloween pumpkins from dead players to unlock a hat.
Dominate a player wearing the Ghastly Gibus to earn your own.
Kill a player scared by a ghost.
Cause the deaths of 5 players by exploding nearby pumpkin bombs.
Kill a Spy disguised as your current class.
Achieve 5 of the achievements in the Soldier pack.
Achieve 11 of the achievements in the Soldier pack.
Achieve 17 of the achievements in the Soldier pack.
Kill 3 enemies with a single critical rocket.
Rocket jump and kill 2 enemies before you land.
Get 3 dominations in a single life.
In a single life, kill 3 enemies who have damaged a Medic that is healing you.
Use a grenade to gib a player.
Kill 5 Engineer sentries while you are standing outside of their range.
Kill an enemy sniper with a rocket after he kills you.
Kill an enemy soldier while both you and the target are airborne.
Kill an Engineer as he repairs his sentry gun while it's under enemy fire.
Kill your nemesis with a shovel.
Destroy 10 sticky bombs with the shotgun in a single life.
Get the highest possible rocket jump using jump and crouch.
Buff 5 steam friends at once with the Buff Banner.
Kill 20 enemies from above.
Shoot two non-boosted crit rockets in a row.
Kill 3 defenseless players after a single match has ended.
Kill 20 enemies while you are on fire.
Kill 5 stunned players.
Provide the enemy with a freezecam of you taunting over 3 of their body parts.
Kill a Spy who just backstabbed a teammate.
Defend a cap point 30 times.
Gib 1000 people.
While rocket jumping kill an enemy with the Equalizer before you land or just after landing.
Buff 15 teammates with the Buff Banner in a single life.
Kill 500 enemy Demomen
Kill a Pyro who has airblasted one of your rockets in the last 10 seconds.
Kill 3 players with the Equalizer in a single life without being healed.
Kill 20 enemies with your Equalizer while you have less than 25 health.
Bounce an opponent into the air with a rocket and then kill them with the shotgun before they land.
Kill 10 opponents who are airborne with the Direct Hit.
Provide the enemy with a freezecam of your 21 gun salute.
Kill 10 enemies while assisting or being assisted by another Soldier.
Finish a round as an MVP on a team of 6 or more players 10 times.
Ride the cart for 30 seconds.
Assist a Medic in exploding 5 enemies with a single ÜberCharge.
Kill 500 enemy Soldiers
Destroy 5 enemy Engineer buildings during a single ÜberCharge from a Medic.
