- Sapsucker
Sap an enemy building, then backstab the Engineer who built it within 5 seconds.
- May I Cut In?
Backstab an enemy and the Medic healing him within 10 seconds of each other.
- Agent Provocateur
Backstab your Steam Community friends 10 times.
- The Melbourne Supremacy
Dominate a Sniper.
- Spies Like Us
While cloaked, bump into an enemy cloaked Spy.
- A Cut Above
Kill a gun-wielding Spy with your knife.
- Burn Notice
Survive 30 seconds after being ignited while cloaked.
- Die Another Way
Kill a Sniper after your backstab breaks his Razorback.
- Constructus Interruptus
Kill an Engineer who is working on a sentry gun.
- On Her Majesty's Secret Surface
Start capping a capture point within a second of it becoming available.
- Insurance Fraud
Kill an enemy while you're being healed by an enemy Medic.
- Point Breaker
Kill 15 enemies who are standing on a control point they own.
- High Value Target
Backstab an enemy who is dominating 3 or more of your teammates.
- Come in From the Cold
Get a Revenge kill with a backstab.
- Wetwork
Stab an enemy to death while under the influence of Jarate.
- You Only Shiv Thrice
Backstab 3 enemies within 10 seconds.
- Joint Operation
Sap an enemy sentry gun within 3 seconds of a teammate sapping another.
- Dr. Nooooo
Backstab a Medic that is ready to deploy an ÜberCharge.
- Is It Safe?
Backstab 50 enemies who are capturing control points.
- Slash and Burn
Backstab an enemy, who then switches to Pyro before they respawn.
- Diplomacy
Kill 50 enemies with the Ambassador.
- Skullpluggery
Headshot 20 Snipers with the Ambassador.
- Sleeper Agent
Kill an enemy who triggered your feign death in the last 20 seconds.
- Who's Your Daddy?
Headshot 3 Scouts with the Ambassador.
- Sniper Milestone 1
Achieve 5 of the achievements in the Sniper pack.
- Sniper Milestone 2
Achieve 11 of the achievements in the Sniper pack.
- Sniper Milestone 3
Achieve 17 of the achievements in the Sniper pack.
- Spy Milestone 1
Achieve 5 of the achievements in the Spy pack.
- Spy Milestone 2
Achieve 11 of the achievements in the Spy pack.
- Spy Milestone 3
Achieve 17 of the achievements in the Spy pack.
- Rode Hard, Put Away Wet
Jarate an enemy that you're dominating.
- Be Efficient
Get 3 kills with the Sniper Rifle without missing a shot.
Unlocked offline - 2 guides
- Triple Prey
In a single round, get a kill with 3 different weapons.
- Self-destruct Sequence
Headshot 10 enemy Snipers.
- Dropped Dead
Kill a Scout in midair with your Sniper Rifle or the Huntsman.
Unlocked offline - 2 guides
- Australian Rules
Dominate an enemy Sniper.
- Kook the Spook
Kill 10 Spies with your Kukri.
- Socket to Him
Headshot an enemy Demoman.
Unlocked offline - 2 guides
- Not a Crazed Gunman, Dad
In a single life, kill 3 enemies while they are achieving an objective.
- Trust Your Feelings
Get 5 kills with the Sniper Rifle without your scope.
- Überectomy
Kill a Medic that is ready to deploy an ÜberCharge.
- Enemy at the Gate
Kill an opponent within the first second of a round.
- Parting Shot
Headshot an enemy player the moment his invulnerability wears off.
- My Brilliant Career
Top the scoreboard 10 times on teams of 6 or more players.
- Shock Treatment
Kill a spy whose backstab attempt was blocked by your Razorback.
- Saturation Bombing
Jarate 4 enemy players with a single throw.
- Jarring Transition
Use Jarate to reveal a cloaked Spy.
- William Tell Overkill
Pin an enemy Heavy to the wall via his head.
- Beaux and Arrows
Kill a Heavy & Medic pair with the bow.
- Robbin' Hood
Take down an intelligence carrier with a single arrow.
- Pincushion
Hit an enemy with 3 arrows, without killing them.
- Number One Assistant
Score 5 assists with the Jarate in a single round.
- Jarate Chop
Jarate and then kill 3 enemies with your Kukri.
- Dead Reckoning
Kill an enemy with an arrow while you're dead.
- Triplecrossed
Backstab 3 Snipers in a single life.
- For Your Eyes Only
Provide an enemy with a freezecam shot of you flicking a cigarette onto their corpse.
- Counter Espionage
Backstab a disguised Spy.
- Identity Theft
Backstab the enemy that you're currently disguised as.
- The Man from P.U.N.C.T.U.R.E.
Stab an enemy while fencing.
- FYI I am a Spy
Backstab a Medic who has healed you in the last 5 seconds.
- The Man with the Broken Guns
Backstab an Engineer, then sap 3 of his buildings within 10 seconds.
- Kill Everyone You Meet
Kill 1000 enemies.
- Spymaster
Backstab 1000 enemies.
- Sap Auteur
Destroy 1000 Engineer buildings with sappers.
- Consolation Prize
Get backstabbed 50 times.
- Be Polite
Provide an enemy with a freezecam shot of you doffing your hat.
- De-sentry-lized
Destroy 3 Engineer sentry guns.
20 May 2010 - 2 guides
- The Last Wave
Provide an enemy with a freezecam shot of you waving to them.
- Jumper Stumper
Kill a rocket or grenade-jumping enemy in midair with your Sniper Rifle or the Huntsman.
- Have a Plan
Capture the flag in CTF.
- Rain on Their Parade
Jarate an enemy and the Medic healing him.
- Friendship is Golden
Extinguish a burning teammate with your Jarate.
- Shafted
Stab an enemy with an arrow.
- Deep Undercover
While using the Cloak and Dagger, kill the same enemy 3 times, all within the same area in a single life.
- Shoot the Breeze
Kill a fully invisible Spy in a single hit.