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