Here is the full list of all 40 Atom Zombie Smasher achievements.
Rescue at least 100 people in July.
Defeat Wave 7 in the KringleJammer mini-game.
Rescue 10,000 scientists.
Accrue 500 gold medals.
Rescue 100,000 people.
Accrue 10,000 landmine kills.
Accrue 10,000 sniper kills.
Launch 500 Llama Bombs.
Accrue 10,000 dynamite kills.
Accrue 10,000 artillery kills.
Accrue 10,000 infantry kills.
Complete a mission with 3 players.
Complete a campaign with the Hardcore and Permadeath modifier.
Destroy 50 Zed in one landmine explosion.
Get 100 landmine kills in a mission.
Get 100 dynamite kills in a mission.
Destroy a Mega Zed.
Cleanse four Zed territories with one Llama Bomb.
Unlock all the vignettes.
Destroy 50 Zed in one dynamite explosion.
Destroy 50 Zed in one artillery strike.
Use snipers to destroy 100 Zed in a mission.
Purchase a Llama Bomb.
Rescue 40 or more people in one helicopter pickup.
Complete a campaign with the Alt. Spawning modifier.
Complete a campaign with the Triplets modifier.
Complete the campaign.
Complete a 20,000 point campaign.
Complete a mission under 30 seconds.
Rescue 300 people in a mission.
Complete a level-4 outbreak mission.
Get 100 infantry kills in a mission.
Get 100 artillery kills in a mission.
Rescue 200 people in a mission.
Complete a level-3 outbreak mission.
Have a merc reach Level 5 veterancy.
Rescue everyone in a mission.
Survive the night.
Rescue 100 people in a mission.
Destroy all Zed in a mission.