Here is the full list of all 42 Killing Room achievements.
Kill yourself in Suicide Booth.
Save 20 ducklings.
Max your Accuracy stat.
Win Killing Room.
Kill 1000 enemies.
Pick up 100 medkits.
Solve 10 puzzles.
Kill enemy while being trapped in Bear Trap.
Kill 500 enemies
Kill 10 boss creatures.
Max your Health stat.
Open 10 coffins.
Complete 250 rooms.
Take 50 items.
Take 10 rare items.
Die 10 times.
Cover otherwise deadly hit.
Save 5 ducklings.
Solve puzzle in last 5 seconds of countdown.
Pick up 20 medkits.
Take 5 rare items.
Take 5 legendary items.
Kill Duna Boss.
Take 20 items.
Take 3 legendary items.
Complete 25 rooms.
Kill 2000 enemies.
Die 50 times.
Finish the game with at least 10 Trouble items in inventory.
Win Killing Room 5 times.
Solve 50 puzzles.
Open 50 coffins.
Max your Damage stat.
Max your Stamina stat.
Max your Magazine stat.
Max your Speed stat.
Complete 1000 rooms.
Kill 50 boss creatures.
Kill 5 ducklings.
Kill 20 ducklings.
Get one item from real viewers.
Win game on Hard mode.