Aquatism is a Tier Three technology that can only be researched after Whaling is researched.

Once researched, it grants a defence bonus to troops on water. (Units with a defence bonus have a shield symbol around their HP.)

Aquatism also unlocks the Water Temple, a temple that can be built on ocean or shallow water tiles for 20 stars.

Polarism

Polaris has the technology Polarism instead of Aquatism. Polarism gives a movement boost to land units moving onto Ice (granting them one more move when they do so) instead of a defence bonus. Also, Polarism unlocks the Ice Temple instead of the Water Temple.

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