Sherwood Dungeon has a complex system of worlds that is quite confusing to figure out. This article will help to explain what the average player does not understand.
Each location (island) is split into 300 chatrooms in which different players are located. They can be teleported to using the 8th icon on the toolbar, the one with the castle gate.
Previously, the game had 3 servers with 99 rooms each, but this was changed to allow more communication in the community.
Clan rooms are created and published by players using the Room Designer. They only contain one island and one room. Creating and saving a clan room is free, however publishing it requires a token that costs $5. They can be teleported to using the 9th icon on the toolbar, the one with the tower.