Here is the full list of all 8 Cubesis achievements.
You have finished tutorial
You have finished campaign
You have finished second campaign
You have stored 9999 gold! (When both gods were unlocked.)
You have cut 999 stones! (When both gods were unlocked.)
You have collected all the treasure chest in Hard Times level using the ship.
Your population have reached 52 cubies! (When both gods were unlocked.)
You have built 16 churches. (When both gods were unlocked.)