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About ATRAH, from BoardGameGeek:

ATRAH plunges you into the deepest, darkest trenches of the ocean ... Designed by Johannes Goupy and Jérémy Ducret, this tactical game for 2 to 4 players perfectly blends set collection, area majority, and a volatile stock market economic engine. In the depths of ATRAH, tension is as thick as the abyss itself. To win, you must collect fearsome sea creatures to influence majorities and double your precious points. But the surface will grant you no respite: move your ship to seize schools of fish and block other players' paths. Shape your own destiny each turn by collecting scoring tiles, turning every decision into a tactical trap closing in on your opponents. -description from the publisher