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