Water World Survival is a strategy game set in a post-apocalyptic environment where players must lead a group of survivors in a world submerged by water. After catastrophic tectonic shifts have decimated civilization, players take on the role of captain of Raftown, a floating community built from driftwood. The game emphasizes resource management, as players must assign roles to survivors, collect resources adrift on the ocean, and maintain the health and satisfaction of their crew. The gameplay encourages exploration and strategic planning, as players navigate the challenges of survival in a harsh, water-logged world.

The game features various mechanics, including underwater exploration, where players can dive into submerged buildings to uncover valuable items. Additionally, players can recruit heroes with unique talents to bolster their community. The dynamic between cooperation and competition adds depth, as players must decide whether to ally with or confront other survivor groups. The ultimate goal is to locate the mysterious Ark, which contains advanced technology and artifacts, positioning players as the leading captain in this water world.