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