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