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