The realm we return to first
Goodgame Empire
Goodgame Empire has been asking players to turn one small spot on a world map into a kingdom since Goodgame Studios launched it in Hamburg in 2011, and it still does the castle fantasy more completely than anything else on our list.
Four kingdoms on one accountOver 60 buildings to raiseAlliances plus pacts between them
The pitch is simple and the follow-through is huge. You raise walls, gatehouses and production buildings, balance food, wood and stone, recruit from a long roster of units and send commanders out with equipment you have earned. Then the map widens: three further kingdoms with their own climates and resources, outposts to claim, and an alliance and pact system that turns neighbours into partners or targets. Regular events keep the calendar busy, and the castle you decorate becomes a genuine point of pride.