Here is the full list of all 44 Doom & Destiny achievements.
Defeat a real Guardian of Power
Defeat the twin Deaemon
Defeat the Flying Spaghetti Monster
Defeat Dr. Insano in his castle
Defeat Robot Judas
Meet Dr. Insano 3 times
Buy the air baloon
Get 8 Gold Sidequest Stars
Bring back home all Dwarfs
Bring back home 3 Dwarfs
Buy the ship
Upgrade the Blue Ring
Get 8 Silver Sidequest Stars
Learn the Ultimate Secret Technique
Upgrade the Red Ring
Upgrade the Yellow Ring
Upgrade the Green Ring
Buy the boat
Beat Doom
Get 8 Bronze Sidequest Stars
Get 4 Gold Sidequest Stars
Find 20 Secrets
Reach Chapter 7
Reach Chapter 6
Defeat Richard's Army
Reach Chapter 5
Learn 90 Powers
Get 4 Silver Sidequest Stars
Find 10 Secrets
Reach Chapter 4
Reach Chapetr 3
Meet Dr. Insano
Get 4 Bronze Sidequest Stars
Learn 45 Powers
Learn 10 Powers
Reach Chapter 2.
Find the chest full of nothing.
Thanks for playing the game
Find All Secrets
Get All (13) Bronze Sidequest Stars
Get All (13) Silver Sidequest Stars
Get All (13) Gold Sidequest Stars
Defeat Richard
Learn 180 Powers