Complete the indicated task to unlock the achievement.

Achievement	How to unlock
A Horde Of Monsters	Cure 50 monsters in total.
A Legion Of Monsters	Cure 10000 monsters in total.
A Throng Of Monsters	Cure 200 monsters in total.
All Fired Up	Beat 100 random levels.
Architect	Build 500 rooms in total.
Butterfly Effect	Cause 8 more monsters to enter your hospital than was predicted.
Close Call	Beat a random level with exactly one death from losing.
Doctor Octopus	Cure 8 monsters in a single turn.
Emergency Room	Beat a random level with a ward at maximum capacity and cure rate.
Fuzzy Isle	Discover Fuzzy Isle.
Getting Warmed Up	Beat 10 random levels.
Ghost Island	Discover Ghost Island.
Going Big	Build 100 rooms in total.
Graduation	Finish all 8 tutorial levels.
Haunted Forest	Discover the Haunted Forest.
Lava Land	Discover Lava Land.
Luxury Healthcare	Beat a random level without ever having more than 4 wards.
Monster's Dozen	Cure 12 monsters in a single turn.
Mutant Mountains	Discover the Mutant Mountains.
Off The Beaten Path	Beat all optional puzzle levels.
On Death's Door	Have 12 monsters near death outside your hospital at once and continue to beat the level.
Spotless Record	Beat a random level without any monsters dying.
Starting Small	Build 10 rooms in total.
Suspicious Circumstances	Beat a random level with exactly one death.
Swamp Town	Discover Swamp Town.
The Final Challenge	Beat the final level.
The Gang's All Here	See all 6 types of monsters.
The Impatient Patient	Have a monster skip past 8 waiting monsters and continue to beat the level.
Walk It Off	Beat a random level without placing any rooms other than wards.
Wasn't That What I Was Supposed To Do?	Unknown.
Zounds Of Monsters	Cure 1000 monsters in total.