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