Here is the full list of all 84 Rampage Knights achievements.
Get high with the magic mushroom.
Win the game on Hard difficulty.
Die 5+ times and still win the game on Hard or higher.
Lockpick 50 chests without fail.
Deal 5000 points of burn damage.
Kill 1000 enemies.
Find 10 books of magic.
Complete Adept of Magic, Scribbler and Librarian.
Deal 10000 points of damage with magic.
Collect 1000 gold.
Complete Give me the booty, Open sesame and Early in the morning.
Kill 100 demons.
Complete A Devilish Rock Off, Exorcist and Elder ones.
Kill 10 wizards.
Hit 200 enemies with explosions.
Use 5 altars.
Remove any curse from yourself.
Hit enemies 25 times with a throwing weapon.
Complete Bullseye, Why so jumpy? and Assassinated.
Decapitate 25 enemies.
Get treasure from the forest den.
Win the game.
Open 20 chests.
Kill 25 enemies in a row without being hit.
Get drunk.
Kill the cook.
Buy the shop out.
Have 1000 gold in your pocket.
Crush 10 enemies by stomping.
Complete Grant me revenge!, Crush and Oversized.
Use 3 scrolls.
Die 3 times. Get an access to a casual mode.
Kill your first boss.
Kill a giant.
Kill 50 enemies.
Acquire double jump.
Win the battle on the castle bridge.
Hit for 250 or more with a single hit.
Win the game on Insane difficulty.
Win the game with all classes on Hard or higher.
Win the game without dying on Hard or higher.
Complete King, Jack of All Trades and Untouchable.
Win the game in less than 30 minutes.
Freeze 200 enemies.
Poison 200 enemies.
Stun 100 enemies.
Destroy 200 shields.
Kill 100 enemies with stomp.
Slam enemies 200 times to the ground with upper cut attack.
Send 200 enemies flying by kick.
Kill 10 enemies with the dwarven contraption.
Kill 25 enemies cursed by the Book from the Cabin.
Throw 200 enemies into chasms.
Kill 100 giants.
Drop 10 giants into a chasm.
Hit 7 enemies with a single throwing axe.
Hit 7 enemies with one dash attack.
Build the hit counter up to 50.
Kill 10 enemies with the Mighty Foot.
Heal 5000 hp.
Clear 100 rooms without being hit.
Deal 100000 points of damage with magic.
Go through 1000 rooms.
Destroy 10000 decorations.
Drink up 200 potions.
Buy 100 items.
Lockpick 200 chests.
Have 7 familiars at once.
Have 3 curses at once.
Open 13 demonic chests.
Loot graveyard.
Complete Grave Robber, Get Trippy and Forest Den.
Find all haunted inns (the devil, potion shop and ghosts).
Turn all cards in the game with the devil.
Hit all rewards on the Wheel of Misfortune.
Collect more than 70 gold during the Gold Rush event.
Win a multiplayer game.
Resurrect a friend via combat in a multiplayer game.
Win all statistics when completing a level.
Win the game in Shadow World.
Find and kill Rolf Ironbutt in the Endless Dungeon.
Win the Bombo-Rama mutation.
Win the Flying Daggers mutation.
Win the Arena mutation.