In Ascidiae you control a thriving colony of ascidians, tiny marine immobile animals, and race to establish new colonies on neighbouring rocks. In this assembly-line puzzle, players use their ascidiae to spawn tadpoles, and their tadpoles to create new tadpoles and ascidiae through metamorphosis. Get the right group of tadpoles to establish a new colony, and claim to colonies to win the game! Card ascidiae are placed on a grid in each player's board, mostly immobile, and activate following the zig-zagging aquatic currents. Wooden tadpoles are placed on the cards and change and travel according to each ascidian habilities. Each ascidia has its own different habilities, and can be initial (each player starts with two), common (all games have these) or special (six chosen from more than 25); with colonies that come in three difficulty levels and different player boards, game possibilities are endless.