Ringworld is a new rms with a ring of land encircling an inner lake and surrounded by a sea. The inner and outer bodies of water do not connect. This map has standard resources other than fish, which are very plentiful.
This map simulates differing climate zones and terrains as you move around the ring, just for fun, as these make no efferct on gameplay. Strategy on sea will involve controlling one or both of the seas. On land, almost any strategy is possible. This map should be played on a size appropriate to the number of players for best results to prevent crowding and distortion of the land.