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