Here is the full list of all 30 Slasher's Keep achievements.
Enter an infinite dungeon
Escape Slasher's Keep
Complete the amazon storyline
Save Ava
Find the jade monkey
Kill Bindrick
Escape the gauntlet
Escape a small dungeon
Re-enter Slasher's Keep
Eat 50 critters
Escape the prison
Defeat the giant spider
Craft an item
Complete a quest
Find a secret
Complete the northerner storyline
Complete the demon storyline
Complete the jellyman storyline
Complete the sasquatch storyline
Complete the undead storyline
Escape a medium sized dungeon
Escape a deep dungeon
Escape a frightening dungeon
Escape a marathon sized dungeon
Escape an infernal dungeon
Find the lucky monkey paw
Satisfy the god of blood
Let yourself be consumed
Escape a large dungeon.
Use a prisoner chute.