Here is the full list of all 106 Zombie Panic! Source achievements.
As a Zombie, have a total of 100 kill assists.
Win a round on Underground as a Zombie.
Win a round on Survival Town as a Zombie.
Win a round on Ruralpanic as a Zombie.
As a Zombie, kill 50 survivors with headshots
Win a round on Policestation as a Zombie.
Win a round on Nightmare as a Zombie.
Win a round on Survival Keretti as a Zombie.
Win a round on Haunted as a Zombie.
Win a round on Deadend as a Zombie.
Win a round on Survival Corpsington as a Zombie.
Win a round on Cinema as a Zombie.
Win a round on Asylum as a Zombie.
Win a round on Tanker as a Zombie.
Win a round on Subway as a Zombie.
Win a round on Shreddingfield as a Zombie.
Win a round on Murksville as a Zombie.
Win a round on Corpsington as a Zombie.
Win a round on Biotec as a Zombie.
Win a round on Blackout as a Zombie.
As a Survivor, heal a total of 25 survivors with the white or red inoculator.
As a Survivor, find and fill up 50 gas cans in the generator on Frozenheart.
As a Survivor, find and deliver 20 supply crates on Zomboeing.
As the Carrier, use 'Roar' ability 250 times.
As a Zombie, do a total of 800 damage on Thrillville.
Win a round on Thrillvile as a Zombie.
As the Carrier, infect three survivors in the same round.
As a Zombie, assist in killing two survivors while berserk mode.
As a Survivor, hotwire the truck 25 times on Zomboeing.
Kill 30 zombies with a sledgehammer through headshots.
Win a round on Harvest as a Zombie.
As a Zombie, kill at least two survivors before the emergency broadcast ends on Harvest.
As a Zombie, destroy 50 barricades.
As a Survivor, barricade 150 times.
Win a round on Zomboeing as a Zombie.
As a Zombie, destroy 150 breakable props.
Win a round on Aquatica as a Zombie.
As a Zombie, steal the documents before the survivors obtain them on Aquatica.
As a Survivor, kill the zombie who is carrying the keycard on Aquatica.
Win a round on Clubzombo as a Zombie.
After being infected, kill a survivor right after turning into a zombie.
As a Survivor, kill 2 Zombies with a single melee swing
Win a round on Sapidcerebrum as a Zombie.
As a Survivor, kill an infected survivor before he turns into a zombie.
Kill an infected survivor with a shovel.
As a Survivor, delay someone's infection with a green inoculator.
As a Zombie, prop kill a survivor.
Complete Zomboeing as a Survivor once.
Play a full round on all of the official maps.
Complete Tanker as a Survivor once.
Complete Subway as a Survivor once.
As a Survivor, escape through the alternative route on Subway.
Complete Shreddingfield as a Survivor once.
Complete Murksville as a Survivor once.
Complete Keretti as a Survivor once.
Complete Harvest as a Survivor once.
Complete Frozenheart as a Survivor once.
As a Survivor, push the generator all the way up until the end on Corpsington.
Complete Corpsington as a Survivor once.
Complete Biotec as a Survivor once.
Complete any official objective map for the first time.
Complete Aquatica as a Survivor once.
Survive Pithole as a Survivor once.
Win a round on Pithole as a Zombie.
Survive Underground as a Survivor once.
Survive Town as a Survivor once.
Survive Thrillvile as a Survivor once.
Survive Silence as a Survivor once.
As a Survivor, be the last man standing and win the round on Silence.
Survive Sapidcerebrum as a Survivor once.
Break 80 unfortunate doors
Survive Ruralpanic as a Survivor once.
As a Zombie, set a survivor on fire
As the Carrier, use your spotting ability on 100 different survivors.
Survive Policestation as a Survivor once.
Survive Nightmare as a Survivor once.
Survive Keretti as a Survivor once.
Survive Haunted as a Survivor once.
Survive Deadend as a Survivor once.
Survive Corpsington as a Survivor once.
As a Survivor, be spotted by a Carrier 45 times.
Survive Clubzombo as a Survivor once.
Win any round using only melee weapons (requires at least one melee kill).
Survive Cinema as a Survivor once.
As a Survivor, play in a round where everyone is only using Eugene and Marcus.
Survive Blackout as a Survivor once.
Survive any official survival map for the first time.
Survive Asylum as a Survivor once.
Play a full round as every ZPS character.
Blow yourself up along with 3 zombies using an IED.
Kill 6 consecutive regular zombies by headshots with a revolver without reloading or changing weapons.
Win a round on Keretti as a Zombie.
Kill 3 zombies with one single grenade.
Win a round on Frozenheart as a Zombie.
Share a fully loaded heavy firearm with a teammate needing.
As a Survivor, get hit by 4 different zombies and survive the round.
Do a total of 600 damage with a keyboard.
Kill 3 zombies in a row through headshots with the baseball bat.
Share a full box of ammo with a teammate needing.
As the Carrier, lead a group of 5 or more zombies.
As the Carrier, kill three survivors in the same life.
Win a round on Silence as a Zombie.