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UBoat is a World War II submarine simulator where you command a German U-boat and manage its crew through survival and combat operations. You navigate the vessel, manage supplies, handle crew morale and discipline, and engage enemy ships while avoiding detection and depth charges. The game treats your submarine as both a military weapon and a home where sailors live, suffer, and sometimes die. Sessions feel tense and resource-focused, as you balance aggressive action with caution, knowing that one mistake or stroke of bad luck could send your vessel and crew to the ocean floor.

CardsRelay has the Steam edition at $8.99, redeemable worldwide.