Jurassic World Evolution 3: Wetlands is a simulation and strategy DLC for Jurassic World Evolution 3 that adds three prehistoric species and bayou-themed environmental assets. New species include the semi-aquatic Irritator, which displays dimorphic patterns, the fish-eating Austroraptor, and the herbivorous Hypsilophodon. These animals interact with specialized habitat items, such as a sunken boat fish feeder designed for the Austroraptor. Thirteen blueprints and hundreds of scenery objects, including boathouses, rusty shacks, wooden pontoons, and bug zappers, enable the construction of bayou-inspired parks. Park managers build wetland enclosures using decorative lanterns and wooden jetty pieces to house the new species.