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