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.
Got killed by zombies.
Escaped Trumbull County.
Earned 500 Fame.
Saw things through at the courthouse.
Maxed out a community member's Cardio skill.
Built one of every type of facility.
Found out what the Army was up to.
Helped the Wilkersons resolve their differences.
Sacrificed your life in a blaze of glory.
Played matchmaker for Quentin and Becca.
Killed one of each freak zombie type with your car.
Performed a hand to hand double kill special attack.
Earned a skill specialization for one of your community members.
Destroyed 10 hordes in one day.
Completed 50 missions or activities with the same character.
Built 8 outposts.
Destroyed 5 infestations in one day.
Relocated your home base.
Killed a member of your community to prevent them from turning.
Got 15 people in your community.
Ran over 250 zombies.
Killed one of each freak zombie type.
Distracted zombies to complete an objective.
Killed 3 zombies with an exploding propane tank.
Built a facility.
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.
Completed a survey activity.
Got to the Mt. Tanner Ranger Station.
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.
Kill 100 zombies with Drone Strikes.
Deliver 6 rucksacks to your base in the back of a single vehicle.
Survive 10 sieges on your base in a single playthrough.
Survive 2 minutes within a Danger Zone.
Send an energy drink flying.
Complete all Sasquatch hunting missions.
Survive detonating a nuclear device in Danforth.
Escape Danforth with Vienna Cho in your community.