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.
Built 8 outposts.
Sacrificed your life in a blaze of glory.
Maxed out a community member's Wits skill.
Maxed out a community member's Cardio skill.
Relocated your home base.
Maxed out a community member's Shooting skill.
Escaped Trumbull County.
Completed 50 missions or activities with the same character.
Found out what the Army's up to.
Saw things through at the courthouse.
Intercepted 5 mysterious supply drops.
Played matchmaker for Quentin and Becca.
Helped the Wilkersons resolve their differences.
Earned 500 Fame.
Killed 3 zombies with an exploding propane tank.
Destroyed 5 infestations in one day.
Invited a community member to follow you 10 times.
Killed one of each freak zombie type with your car.
Killed a member of your community to prevent them from turning.
Earned a skill specialization for one of your community members.
Killed one of each freak zombie type.
Got killed by zombies.
Got 15 people in your community.
Maxed out a community member's Fighting skill.
Intercepted a mysterious supply drop.
Distracted zombies to complete an objective.
Destroyed 10 hordes in one day.
Ran over 250 zombies.
Built a facility.
Used a car door to kill a zombie.
Convinced another enclave to join your community.
Invited a community member to follow you.
Escaped Mt. Tanner and found the survivors at the church.
Completed a survey activity.
Made it to the Mt. Tanner Ranger Station.
Build one of every type of facility.
Perform a hand to hand double kill special attack.
Fix delicious snacks 5 times.
Craft ammunition 5 times.
Kill 25 zombies with incendiary shotguns.
Reached Breakdown Level 5.
Collected 150 Resources at Breakdown Level 4 or Higher.
Reached Breakdown Level 4.
Destroyed 5 Ferals at Breakdown Level 3 or Higher.
Performed 50 Zombie Executions at Breakdown Level 3 or Higher.
Reached Breakdown Level 3.
Destroyed 5 Bloaters at Breakdown Level 2 or Higher.
Reached Breakdown Level 2.
Go out in a Blaze of Glory at Breakdown Level 1 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.
Complete All Research Projects (Breakdown Level 1 or Higher).
Burn 100 Zombies with Fire (Breakdown Level 2 or Higher).
Earn 25 Headshot Streaks (Breakdown Level 4 or Higher).
Sent an energy drink flying.
Escaped Danforth with Vienna Cho in your community.
Survived 2 minutes within a Danger Zone.
Survived 10 sieges on your base in a single playthrough.
Completed all hunting missions with Sasquatch.
Successfully extracted Dan Bogatz.
Successfully extracted Hadley Westen.
Successfully extracted Timothy Hall.
Delivered 6 rucksacks to your base in the back of a single vehicle.
Successfully extracted Madison Grant.
Successfully extracted Michele Martin.
Brought Eldridge to Black Friday, but he won't leave.
Successfully extracted Julene Horn.
Brought Thomas Horn to the Landing Zone, at least.
Kill 100 zombies with Drone Strikes.
Survive detonating a nuclear device in Danforth.