Algae is a building and terrain type exclusive to the Cymanti tribe that is built on water and ocean tiles and allows both land and naval units to travel over it. Algae produces one population and replaces the Port for Cymanti. Algae can be built at a cost of five stars; it is also created when a poisoned unit dies or a unit explodes over water.

Algae stops the movement of units without the creep or fly skills, like forests and mountains do, even if the Algae is frozen.

The Clathrus produces one star per turn for each adjacent Algae.

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