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