Arkheim is played in game rounds that end after roughly 10 weeks and is won by the Realm that first reaches Eternal Light on the island Panselon in the endgame phase. If you don't want to compete for a server-wide victory, your Realm can instead aim to win your Island ranking.
During Early Access, there was only one game world active at a time, but they have started more frequently later on.
Your progress is based on the game world and doesn't carry over - everybody has a fresh start on a new game world and can try a different race, new strategies or a different Realm.
Sapphires you bought and have left at the end of a round can be carried over to the next world.
