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