Full list of all 72 State of Decay: Year-One achievements worth 1,500 gamerscore.
The base game contains 40 achievements worth 1,000 Gamerscore, and there are 2 DLC packs containing 32 achievements worth 500 Gamerscore.
Escaped Trumbull County.
Intercepted 5 mysterious supply drops.
Built one of every type of facility.
Earned 500 Fame.
Built 8 outposts.
Sacrificed your life in a blaze of glory.
Crafted ammunition 5 times.
Killed 25 zombies with incendiary shotguns.
Performed a hand to hand double kill special attack.
Helped the Wilkersons resolve their differences.
Relocated your home base.
Earned a skill specialization for one of your community members.
Killed a member of your community to prevent them from turning.
Maxed out a community member's Cardio skill.
Completed 50 missions or activities with the same character.
Maxed out a community member's Fighting skill.
Found out what the Army's up to.
Invited a community member to follow you 10 times.
Killed 3 zombies with an exploding propane tank.
Maxed out a community member's Shooting skill.
Got 15 people in your community.
Intercepted a mysterious supply drop.
Saw things through at the courthouse.
Killed one of each freak zombie type with your car.
Killed one of each freak zombie type.
Played matchmaker for Quentin and Becca.
Destroyed 10 hordes in one day.
Got killed by zombies.
Ran over 250 zombies.
Fixed delicious snacks 5 times.
Destroyed 5 infestations in one day.
Used a car door to kill a zombie.
Invited a community member to follow you.
Distracted zombies to complete an objective.
Built a facility.
Convinced another enclave to join your community.
Escaped Mt. Tanner and found the survivors at the church.
Completed a survey activity.
Made it to the Mt. Tanner Ranger Station.
Max out a community member's Wits skill.
Go out in a Blaze of Glory at Breakdown Level 1 or Higher.
Destroy 5 Bloaters (Breakdown Level 2 or Higher).
Perform 50 Zombie Executions at Breakdown Level 3 or Higher.
Collect 150 Resources at Breakdown Level 4 or Higher.
Destroy 5 Juggernauts at Breakdown Level 5 or Higher.
Execute 50 Stealth Kills at Breakdown Level 5 or Higher.
Reach Breakdown Level 6.
Unlock All Heroes.
Reach Breakdown Level 2.
Reach Breakdown Level 3.
Reach Breakdown Level 4.
Reach Breakdown Level 5.
Complete All Research Projects (Breakdown Level 1 or Higher).
Burn 100 Zombies with Fire (Breakdown Level 2 or Higher).
Destroy 5 Ferals (Breakdown Level 3 or Higher).
Earn 25 Headshot Streaks (Breakdown Level 4 or Higher).
Kill 100 zombies with Drone Strikes.
In Lifeline, 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 hunting missions with Sasquatch.
Survive detonating a nuclear device in Danforth.
Escape Danforth with Vienna Cho in your community.
Successfully extract Thomas Horn.
Successfully extract Julene Horn.
Successfully extract Michele Martin.
Successfully extract Timothy Hall.
Successfully extract Hadley Westen.
Successfully extract Dan Bogatz.
Successfully extract Madison Grant.
Successfully extract Kelly Eldridge.