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