Here is the full list of all 15 Empire of the Gods achievements.
Win a stage.
Win a stage with 10 remaining time.
Win a stage with 15 remaining time.
Win a stage while using all bonus cards.
Win a stage while using all extra cards.
Expand your empire.
Defend your empire.
Build a pyramid.
Build a temple.
Improve each attribute of your character.
Get 100 total fame.
Get 500 total fame.
Use 1,000 cards.
Use 3,000 cards.
Improve each attribute of your character to the maximum value.