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