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