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