If you are a purist seeking perfection, stay in single-player. If you want to laugh, scream, and build a raft city with your buddies, download the mod, configure BepInEx, and set sail.
As of early 2026, there is no official 4-player multiplayer mode or widely verified stable mod that expands the player count beyond the standard 2-player limit Stranded Deep stranded deep 4 player mod
Islands are balanced for 1-2 people. With 4 players, you will run out of food and water twice as fast. If you are a purist seeking perfection, stay
Navigate to your Stranded Deep installation folder (Steam > right-click Stranded Deep > Manage > Browse Local Files). Extract the BepInEx files directly into this folder. Run the game once, then close it. This generates the necessary "Plugins" folder. download the mod