Here is the full list of all 15 Prometheus - there are The Fire Thief achievements.
Defeat Zeus the first time
Beat the Centaur
Beat the Hydra
Beat the Chimaera
Beat Talos
Beat Geryon
Beat the Erymanthic Wild Boar
Beat the Dragon
Beat Zeus the second time
Collect all items in the game
Collect 99 coins
Gain all weapons
Beat the game in under 1 hour 30 minutes
Beat the game with less than 5 deaths
Find the secret room