Such a cool setting always felt for me a bit lacking of cooperation and conspiracies. So what are your thoughts on a following homebrew:
Cyclades diplomacy and trade rules:
Trade: Active player during his action phase may perform one transaction with each player if they have adjacent controlled cells. Transaction may include in both ways unlimited amount of: gold, philosophers, priests or artifacts.
Trade route: Whenever two players each have at least one ship adjacent to other's port they may establish a trade route. During revenue phase each player participating in trade route gains 1 gp if they both agrees and are allowed to. During single revenue phase player may not participate in more trade routes than half of prosperity tokens under his control (rounded down). #games