Full list of all 82 Sir Whoopass: Immortal Death achievements.
The base game contains 66 achievements, and there are 2 DLC packs containing 16 achievements.
Find the marvelous Chickenator
Kill the clown in the sewers
Kill 1000 enemies
Collect at least 100 eggs
Read a book from a bookshelf
Get your very first lethal weapon
"Defeat" The Immortal
Release all the chains
Kill the Ent
Get full protection when Level Up
Get full luck when Level Up
Get full agility when Level Up
Get full strength when Level Up
Make the Bard play another song while you are drunk
Drink five large grogs at the same time
Kill a Grenadier with your bare hands
Live out your cowboy dreams and make a triple-shot
Kill your first Sven-Olof
Get eaten by a shark
Find and buy the HoverCraft 2500™
Kill 500 enemies
Kill Big Boi
Jump 500 times
Eat your first grilled chicken
Dodge 100 times
Eat 100 Gnomes
Kill an enemy using metal bars
Drink your very first grog
Have three grogs in total
Whoop Ass 10 times!
Kill your first Grumpy Worm
Kill 100 enemies
Kill your first Shotgun Knight
Kill you first Grenadier
Kill a Billy-Goat
Buy a surpise from Melisande
Make the Bard play another song
Use the stinky outhouse
Jump 100 times
Blow up yourself and an enemy with a dynamite barrel
Kill your first Skelton warrior
Kill your first Fungoid Bob
Jump 20 times
Dodge 20 times
Kill your first IRS guy
Put out the fire
Catch fire
Kill your first Orc Hipster
Kill your first Billy Bob
Eat your first Garden Gnome
Pick up a Mistlefoe
Kill your first Orc Noob
Kill your first Orc Warmaiden
Eat 500 Gnomes
Dodge 500 times
Get the Jetpack 2000 by cheating
Visit a place you shouldn't actually visit
Kill yourself with metal bars
Collect your first Wheel of Cheese!
Collect 5 Wheels of Cheese!
Collect 10 Wheels of Cheese
Collect 25 Wheels of Cheese
Collect 50 Wheels of Cheese and make Sheo proud!
Loot 6 drunken orcs
Beat the first Flappy Knight level in the arcade machine.
Spoil the Bard so he can afford new and fancy clothes.
Complete the dungeon 100%
Find a pair of Deal-with-it glasses
Find all 6 pairs of Deal-with-it glasses