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There's both free and paid version https://play.google.com/store/apps/details?id=games.paveldogreat.fluidsimfree https://play.google.com/store/apps/details?id=games.paveldog... https://play.google.com/store/apps/details?id=games.paveldogreat.fluidsim https://play.google.com/store/apps/details?id=games.paveldog...