Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Bullet saver	Kill 100 infected with melee weapons.
Carmageddon	Kill 100 infected by running them over.
Constructor	Every type of building constructed.
Driver	Every type of vehicle operated.
Eco Friendly	No tree cutting allowed for 24 days, fuel engines usage disallowed. Deconstruction allowed. Green energy allowed.
Globetrotter	Survive 12 days on each of the recommended maps.
Governor	Gather 200 survivors at once.
Hello there	Build an antenna.
I Am Legend	Survive 12 days with only one survivor.
Kill them all!	Kill 1000 infected.
Mr. Prepper	Find a prepper fallout shelter.
No trespassing!	Deny 10 groups of immigrants.
No walls	Survive 24 consecutive days without building walls.
Persistent	Survive 50 days in a single location.
Save Haven	Accept 10 groups of immigrants.
Saviour	Save the raiders.
Seasoned Survivor	Survive 24 consecutive days on very hard difficulty.
Shooter	Every type of weapon owned.
Unbroken	Defeat the military.
We do not sow	No farming for 50 days. Scavenge or eat people!