Reach floor one

Reach Floor 3

Reach Level 5

Kill any entity with a weapon

Survive being chased by an entity

Unlock a locked door

Use a sanity pill

Encounter a hound

Encounter a smiler

Unlock and climb through an air vent

Unlock a safe

Find the "Poolrooms" level

Find the "Greek labyrinth" level

Eat a corpse

Find "Level FUN"

Find the "Torture Rooms"

Enter the "negative" levels

Unlock a "big chest"

Repair a weapon

Upgrade a weapon

Buy an item from a friendly entity

Collect 10 Backcoins

Discover the "snowy" levels

Discover the "Castle" levels

Eat a protein bar

Use a vending machine

Equip body armor

Find a crafting blueprint

Sell an item

Obtain an Air Rifle or Air Pistol

Find the "safe level"

Break an ore deposit