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