Aquatism is a tier three technology that unlocks the Water Temple and grants a defense bonus to friendly units on water and ocean tiles.

Polarism

Polaris has the Polarism technology instead of Aquatism. Polarism unlocks the Ice Temple and the Glide ability, which gives all non-skating units an extra move when moving on ice.

Gallery

Technology
Hunting
Archery - Spiritualism
Forestry - Mathematics
Riding
Roads - Trade
Free Spirit - Chivalry
Organization
Farming - Construction
Shields - Diplomacy
Fishing
Sailing - Navigation
Whaling - Aquatism
Climbing
Mining - Smithery
Meditation - Philosophy
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