In Subnautica 2, the base-building mechanics have been redesigned to enhance accessibility and ease of use. Players can now collaborate in multiplayer mode to build bases, but must be cautious about resource theft by visitors. A new procedural system allows for fluid base construction without complex menus, enabling customization of shapes for windows and other elements. Concerns have been raised about the shift from circular to angular base designs, with circular pieces potentially still in development. Customization options will include painting structures and altering lighting, though some features may not be available at early access launch. Players are advised to check their PC's system requirements for optimal performance.