Full list of all 46 State of Decay achievements worth 600 gamerscore. It takes around 20-25 hours to unlock all of the achievements in the base game.
The base game contains 30 achievements worth 400 Gamerscore, and there are 2 DLC packs containing 16 achievements worth 200 Gamerscore.
Maxed out a community member's Cardio skill.
Escaped Trumbull County.
Helped the Wilkersons resolve their differences.
Found out what the Army was up to.
Destroyed 5 infestations in one day.
Killed one of each freak zombie type with your car.
Killed one of each freak zombie type.
Ran over 250 zombies.
Destroyed 10 hordes in one day.
Killed a member of your community to prevent them from turning.
Got killed by zombies.
Distracted zombies to complete an objective.
Completed a survey activity.
Convinced another enclave to join your community.
Escaped Mt. Tanner and found the survivors at the church.
Used a car door to kill a zombie.
Got to the Mt. Tanner Ranger Station.
Play matchmaker for Quentin and Becca.
See things through at the courthouse.
Build one of every type of facility.
Build a facility.
Earn 500 Fame.
Build 8 outposts.
Get 15 people in your community.
Relocate your home base.
Earn a skill specialization for one of your community members.
Sacrifice your life in a blaze of glory.
Kill 3 zombies with an exploding propane tank.
Perform a hand to hand double kill special attack.
Complete 50 missions or activities with the same character.
Go Out in a Blaze of Glory (Breakdown Level 1 or Higher).
Kill 5 Bloaters (Breakdown Level 2 or Higher).
Perform 50 Zombie Executions (Breakdown Level 3 or Higher).
Collect 150 Resources (Breakdown Level 4 or Higher).
Destroy 5 Juggernauts (Breakdown Level 5 or Higher).
Execute 50 Stealth Kills (Breakdown Level 5 or Higher).
Reach Breakdown Level 6.
Unlock All Heroes.
Killed 100 zombies with Drone Strikes.
Delivered 6 rucksacks to your base in the back of a single vehicle.
Survived 2 minutes within a Danger Zone.
Sent an energy drink flying.
Survive 10 sieges on your base in a single playthrough.
Complete all Sasquatch hunting missions.
Survive detonating a nuclear device in Danforth.
Escape Danforth with Vienna Cho in your community.