Sunkenland (online)

Sunkenland is a first-person open-world survival game inspired by a water-covered post-apocalyptic Earth. Players scavenge submerged cities, abandoned islands, and ocean ruins to gather resources, craft tools, and build fortified bases above and below the water. The game features exploration on land and underwater, base building, weapon crafting, and combat against hostile factions and mutants. Players must manage hunger, thirst, and health while defending their settlements from raids. With solo and cooperative multiplayer support, Sunkenland offers a challenging survival experience focused on exploration, construction, and combat in a vast ocean world.