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