There are a total of 147 achievements in Counter-Strike: Source. They can be obtained by performing specific tasks, such as rescuing a certain amount of hostages or earning a set amount of kills.
Then player unlocking achievement(s) the unique sound will be played.
Blast Will and Testament Win a round by picking up the bomb from a fallen comrade and successfully planting it.
Boomala Boomala Plant 100 bombs.
Clusterstruck Kill 5 players in a C4 blast.
Combat Ready Defuse a bomb with a kit when it would have failed without one.
Counter-Counter-Terrorist Kill a CT while he is defusing the bomb.
Defusus Interruptus Stop defusing to kill a terrorist and then successfully finish defusing the bomb.
Participation Award Kill an enemy player within 3 seconds of them recovering a dropped bomb.
Rite of First Defusal Win a round by defusing a bomb.
Second to None Successfully defuse a bomb with less than one second remaining.
Short Fuse Plant a bomb within 25 seconds.
Someone Set Up Us The Bomb Win a round by planting a bomb.
The Hurt Blocker Defuse 100 bombs.
Wild Gooseman Chase As the last living terrorist, distract a defuser long enough for the bomb to explode.
Hostage Rescue[]
Cowboy Diplomacy Rescue 100 hostages.
Dead Shepherd Kill an enemy player who is leading the hostages without injuring any hostages.
Freed With Speed Rescue all hostages within 90 seconds.
Good Shepherd Rescue all hostages in a single round.
SAR Czar Rescue 500 hostages.
Kill[]
Aerial Necrobatics Kill an airborne enemy while you are also airborne.
Akimbo King Use Dual Elites to kill an enemy player that also has Dual Elites equipped.
Ammo Conservation Kill two enemy players with a single bullet.
Avenging Angel Kill an enemy player in the same round as they kill a player on your friends list.
Ballistic Kill 5 enemy players within 15 seconds.
Battle Sight Zero Kill 250 enemy players with headshots.
Blind Ambition Kill a total of 25 enemy players blinded by flashbangs.
Blind Fury Kill an enemy player while you are blinded from a flashbang.
Body Bagger Kill 25 enemies.
Bunny Hunt Kill an airborne enemy.
Can't Keep a Good Man Down Kill a total of 20 enemy players that are dominating you.
Command and Control Get a total of 100 kills on enemy players you are dominating.
Corpseman Kill 500 enemies.
Dead Man Stalking Kill an enemy while at 1 health.
Death From Above Kill an enemy player while you are airborne.
Decimator Dominate a total of 10 enemy players.
Defuse This! Kill the defuser with an HE grenade.
Excessive Brutality Kill an enemy player 4 additional times while you are dominating them.
Expert Marksman Get a kill with every weapon.
Eye to Eye Kill a zoomed-in enemy sniper with a sniper rifle of your own.
Friendly Firearms Kill 100 enemy players with enemy weapons.
God of War Kill 10,000 enemies.
Hat Trick Dominate three enemy players simultaneously.
Hip Shot Kill an enemy with an un-zoomed sniper rifle.
Insurgent Kill an enemy player that is dominating you.
Lost and F0wnd Kill an enemy player with a gun they dropped that round.
Make the Cut Win a knife fight.
Overkill Kill an opponent you are already dominating.
Repeat Offender Dominate an enemy player.
Safety First Survive a shot to the head because you had the good sense to wear a helmet.
Shot With Their Pants Down Kill an enemy player while they are reloading.
Shrapnelproof Take 80 points of damage from enemy grenades and still survive the round.
Sknifed Kill a zoomed-in enemy sniper with a knife.
Snipe Hunter Kill 100 zoomed-in enemy snipers.
Spray and Pray Kill two enemy players while you are blinded from a flashbang.
Street Fighter Kill an enemy player with a knife during the pistol round.
Ten Angry Men Get 10 kills on enemy players you are already dominating during a single match.
The Bleeding Edge Win 100 knife fights.
Three the Hard Way Kill 3 enemy players with a single HE grenade.
Variety Hour Get kills with 5 different guns in a round.
Weapon[]
.40 Dual Elites Expert Kill 100 enemy players with the .40 Dual Elites.
9x19 Sidearm Expert Kill 200 enemy players with the 9x19 Sidearm.
228 Compact Expert Kill 200 enemy players with the 228 Compact.
Bullpup Expert Kill 500 enemy players with the Bullpup.
Clarion 5.56 Expert Kill 500 enemy players with the Clarion 5.56.
CV-47 Expert Kill 1,000 enemy players with the CV-47.
D3/AU-1 Expert Kill 500 enemy players with the D3/AU-1.
ES C90 Expert Kill 1,000 enemy players with the ES C90.
ES Five-Seven Expert Kill 100 enemy players with the ES Five-Seven.
HE Grenade Expert Kill 100 enemy players with the HE grenade.
IDF Defender Expert Kill 500 enemy players with the IDF Defender.
Ingram Mac-10 Expert Kill 500 enemy players with the Ingram Mac-10.
KM Sub-Machine Gun Expert Kill 1,000 enemy players with the KM Sub-Machine Gun.
KM Tactical .45 Expert Kill 200 enemy players with the KM Tactical .45.
KM UMP45 Expert Kill 1,000 enemy players with the KM UMP45.
Knife Expert Kill 100 enemy players with the knife.
Krieg 550 Commando Expert Kill 500 enemy players with the Krieg 550 Commando.
Krieg 552 Expert Kill 500 enemy players with the Krieg 552.
Leone 12 Gauge Super Expert Kill 200 enemy players with the Leone 12 Gauge Super.
Leone YG1265 Auto Shotgun Expert Kill 200 enemy players with the Leone YG1265 Auto Shotgun.
M249 Expert Kill 500 enemy players with the M249.
Magnum Sniper Rifle Expert Kill 1,000 enemy players with the Magnum Sniper Rifle.
Master At Arms Unlock every weapon kill achievement.
Maverick M4A1 Carbine Expert Kill 1,000 enemy players with the Maverick M4A1 Carbine.
Night Hawk .50c Expert Kill 200 enemy players with the Night Hawk .50c.
Pistol Master Unlock all 6 Pistol kill achievements.
Rifle Master Unlock all 10 rifle kill achievements.
Schmidt Machine Pistol Expert Kill 500 enemy players with the Schmidt Machine Pistol.
Schmidt Scout Expert Kill 1,000 enemy players with the Schmidt Scout.
Shotgun Master Unlock both shotgun kill achievements.
Sub-Machine Gun Master Unlock all 5 sub-machine gun kill achievements.
Special[]
A Million Points of Blight Inflict 1,000,000 total points of damage to enemy players.
A World of Pane Shoot out 14 windows in a single round on cs_office.
Black Bag Operation Win a round while making no footstep noise and killing at least one enemy.
Blitzkrieg Win a round in less than 30 seconds (against at least 5 enemy players).
Blood Money Earn $50,000,000 total cash.
Clean Sweep Kill the entire opposing team without any members of your team taking any damage.
Cold War Win a round without your team killing any enemy players.
Dead of Night Do 5,000 damage with nightvision active.
Dressed to Kill Start a round with all players on your team wearing the same uniform (at least 5 players).
Finishing Schooled Kill an enemy player who has been reduced to less than 5% health by other players.
Friendly Attire Start a round on the same team as 4 of your friends, with all of you wearing the same outfit.
Give Piece a Chance Win 25 Pistol Rounds.
Head Shred Redemption Kill 5 enemy players with headshots in a single round.
Kill One, Get One Spree Kill an enemy player who is on a killing spree.
Killanthropist Donate 100 weapons to your teammates.
Leet-er of Men Win 5000 rounds.
Mad Props Break 15 props in a single round.
Magic Bullet Kill an enemy with the last bullet in your magazine (excluding sniper rifles).
Mercy Rule Kill the entire opposing team without any members of your team dying.
Newb World Order Win 10 rounds.
Piece Initiative Win 5 Pistol Rounds.
Piece Treaty Win 250 Pistol Rounds.
Points in Your Favor Inflict 2,500 total points of damage to enemy players.
Premature Burial Kill an enemy with a grenade after you've died.
Primer Do at least 95% damage to an enemy who is then killed by a another player.
Pro-moted Win 200 rounds.
Spoils of War Earn $2,500,000 total cash.
Target-Hardened Survive damage from 5 different players within a round.
The Art of War Spray 100 decals.
The Cleaner Kill the entire enemy team (with at least 5 players) in a single round.
The Frugal Beret Win 10 rounds without dying and not spending any cash.
The Immovable Object Kill an enemy player who has just killed 10 of your teammates in a single round.
The Road to Hell Blind an enemy player who then kills a teammate.
The Unstoppable Force Kill 10 enemy players in a single round.
War Bonds Earn $125,000 total cash.
War of Attrition Be the last player alive in a round (with at least 5 players on your team).
You've Made Your Points Inflict 50,000 total points of damage to enemy players.
Map[]
Assault Map Veteran Win 100 rounds on the CS_Assault map.
Aztec Map Veteran Win 100 rounds on the DE_Aztec map.
Chateau Map Veteran Win 100 rounds on the DE_Chateau map.
Cobblestone Map Veteran Win 100 rounds on the DE_Cbble map.
Compound Map Veteran Win 100 rounds on the CS_Compound map.
Dust Map Veteran Win 100 rounds on the DE_Dust map.
Dust2 Map Veteran Win 100 rounds on the DE_Dust2 map.
Havana Map Veteran Win 100 rounds on the CS_Havana map.
Inferno Map Veteran Win 100 rounds on the DE_Inferno map.
Italy Map Veteran Win 100 rounds on the CS_Italy map.
Militia Map Veteran Win 100 rounds on the CS_Militia map.
Nuke Map Veteran Win 100 rounds on the DE_Nuke map.
Office Map Veteran Win 100 rounds on the CS_Office map.
Piranesi Map Veteran Win 100 rounds on the DE_Piranesi map.
Port Map Veteran Win 100 rounds on the DE_Port map.
Prodigy Map Veteran Win 100 rounds on the DE_Prodigy map.
Tides Map Veteran Win 100 rounds on the DE_Tides map.
Train Map Veteran Win 100 rounds on the DE_Train map.
Miscellaneous[]
Clan Warfare Win a match of at least 10 players where the entirety of each team is composed of a single clan.
Happy Camper Get two kills standing in the same spot with a zoomed sniper rifle.
Gift Grab Collect three gifts dropped by opponents.
Trivia[]
«Someone Set Up Us The Bomb» comes from the game Zero Wing, which has become an Internet meme due to its poorly translated English.
«The Hurt Blocker» is a pun of the war film The Hurt Locker, a movie about a bomb disposal team.
«Wild Gooseman Chase» is a reference to Minh Le, the co-creator of the original Counter-Strike mod for Half-Life. His nickname is «Gooseman».
«Leet-er of Men» is a reference to the Elite Crew, which is also named leet in a console command.
«God of War» references the God of War franchise.
«Head Shred Redemption» is a pun of the game Red Dead Redemption.
«The Art of War» references The Art of War, an ancient Chinese military treatise attributed to Sun Tzu.
«Ten Angry Men» references the movie Twelve Angry Men.
It possible to get the Eye to Eye achievement using the SG 552 or the AUG.
Originally, the achievement «Valve Gift Grab 2011 — CS:S» is impossible to achieve after 2011. This was updated since 16 June, 2017 update, where the achievement name was changed from Valve's Gift Grab 2011 to Gift Grab, and can be obtainable in any winter event.
The SAR in «SAR Czar» stands for «Search and rescue».
