No missable achievements (plus 60 unknown)
Sign in with Steam or Xbox to track your progress, and:
Acquire the camera.
Acquire the rope.
Acquire the two-way radio.
Kill 50 zombies with a melee weapon.
Recover to max health from minimum health.
Acquire the combat flashlight.
Kill 100 zombies in total.
Collect 25 ammo packs.
Stealth kill 25 zombies.
Find the underground labs.
Kill 10 Spitters with a ranged weapon.
Acquire the gas mask.
Acquire the assault rifle.
Acquire the grappling hook.
Kill 25 zombies with pistol headshots.
Kill 10 Butchers.
Complete the underground labs.
Stealth kill a Dweller.
Acquire the walloper.
Execute 25 downed zombies.
Kill 10 enemies in a row without being detected.
Kill an airborne Bouncer.
Kill 5 enemies in 2 seconds.
Kill a Dweller using an environmental hazard.
Kill 10 zombies with close range shotgun blasts.
Collect all postcards.
Find all the underground secondary areas.
Kill 10 enemies at long range with the walloper.
Kill 100 enemies with the assault rifle.
Collect all of Ronald's logs.
Collect all research logs.
Injure a single zombie with your melee weapon, the pistol and the shotgun, then stealth kill it.
Collect all Charon's logs.
Collect all lost stories.
Collect all snapshots.
Kill 5 Sirens while they are screaming.