Here is the full list of all 44 Immortal Redneck achievements.
Kill 50,000 minions
Beat the game with 20 lives or less
Buy every level of each Skill Tree node
Pay 5,000 coins or more as a tribute
Beat the game with the Plague Medallion
Beat the game with the Cursed Medallion
Complete a pyramid without taking scrolls or weapons
Use Déjà Vu to keep the layout of a pyramid
Beat the game using all the favors of the Gods
Defeat Fayoum
Beat the game
Get more than 50,000 coins in a game
Equip all the weapons
Unlock and buy every medallion
Die 50 times
Defeat Asyut
Buy every Skill Tree node
Defeat Pharaoh in under 15 minutes from when you enter the pyramid
Defeat Temsep
Complete a pyramid exploring all of its rooms
Defeat Maaty
Acquire four jumps in a game
Find the Crowbar, the Rocket Launcher and the Explosive Bow
Find every scroll
Defeat Weryt
Spend 100,000 coins on the Skill Tree
Obtain Thoth's Favor
Obtain Ammit's Favor
Nice try but sorry, you're trapped in here
Obtain Hathor's Favor
Kill 7 enemies with a single explosion
Defeat Pharaoh
Get 10 scrolls in a game
Kill a chicken
Obtain Amunet's Favor
Obtain Neith's Favor
Obtain Seth's Favor
Obtain Apis' Favor
Get a health steak from a vessel
Find your first blueprint
Complete a Skill Room
Obtain Sekhmet's Favor
The Merchant is open for business
Reach the second floor of the pyramid