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