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.
Killed 25 zombies with incendiary shotguns.
Maxed out a community member's Shooting skill.
Completed 50 missions or activities with the same character.
Earned a skill specialization for one of your community members.
Killed a member of your community to prevent them from turning.
Killed one of each freak zombie type.
Relocated your home base.
Intercepted a mysterious supply drop.
Distracted zombies to complete an objective.
Ran over 250 zombies.
Maxed out a community member's Fighting skill.
Destroyed 10 hordes in one day.
Convinced another enclave to join your community.
Built a facility.
Invited a community member to follow you.
Escaped Mt. Tanner and found the survivors at the church.
Used a car door to kill a zombie.
Completed a survey activity.
Made it to the Mt. Tanner Ranger Station.
Escape Trumbull County.
Find out what the Army was up to.
Play matchmaker for Quentin and Becca.
See things through at the courthouse.
Help the Wilkersons resolve their differences.
Destroy 5 infestations in one day.
Build 8 outposts.
Get 15 people in your community
Max out a community member's Cardio skill.
Sacrifice your life in a blaze of glory.
Get killed by zombies.
Build one of every type of facility.
Earn 500 Fame.
Kill 3 zombies with an exploding propane tank.
Perform a hand to hand double kill special attack.
Kill one of each freak zombie type with your car.
Invite a community member to follow you 10 times.
Intercept 5 mysterious supply drops.
Max out a community member's Wits skill.
Fix delicious snacks 5 times.
Craft ammunition 5 times.
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).
Successfully extracted Julene Horn.
Brought Thomas Horn to the Landing Zone, at least.
Sent an energy drink flying.
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.
Complete all hunting missions with Sasquatch.
Survive detonating a nuclear device in Danforth.
Escape Danforth with Vienna Cho in your community.
Successfully extract Michele Martin.
Successfully extract Timothy Hall.
Successfully extract Hadley Westen.
Successfully extract Dan Bogatz.
Successfully extract Madison Grant.
Successfully extract Kelly Eldridge.