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