Here is the full list of all 37 RAD achievements.
Complete Cathode Raider Tasks
Complete Vestigial Tasks
Unlock 100% of the Tome of the Ancients
Complete Transfigured Tasks
Get a Survivor Streak of 10 or more
Discover a Mutation Combo
Fully upgrade the town statue
Completed the game De-Made style
Load your body up with the bummer mutation trifecta
Become a Desert Chrome member
Unlock all weapons
Unlock all Quirks
Conceive a serpent baby
Shamefully fall to your death while fighting the Colossus
Unlock 75% of the Tome of the Ancients
Stay aloft for 10 seconds
Unlock all styles
Upgrade Shermie's Shop to the max!
Receive a cash payout from the Mender altar
Heal, Burn and Heal some more using fruit
Help Billy complete his garden
Defeat the Colossus
Unlock 50% of the Tome of the Ancients
Annihilate 5 enemies at once
Get a Kill Streak of 10 or more
Help Billy farm a plant
Receive a tasty beverage from the Mender altar
Pop a chicken with your snake head
Receive disapproval from the Mender altar
Steal a key from a shop using Suck Face
Upgrade Shermie's Shop
Eject 100 tapes from an ATM
Become a Platinum member
Unlock 25% of the Tome of the Ancients
Participate in a Daily Challenge
Capitalize on your bodaciousness
Do someone a solid