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