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