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