Mod: 4-Player Co-op Expansion for Stranded Deep Purpose: Add stable online co-op for up to 4 players with shared world persistence and balanced resource scaling.
Larger lobbies increase the chance of a save file failing to load. Always back up your save located in AppData\LocalLow\Beam Team Games . Why 4-Player is Highly Requested
: Online co-op and local split-screen (split-screen is PC-exclusive). Cross-platform
The (often found under community names like "Co-op Mod" or "Multiplayer Mod") is a third-party modification that bypasses the game’s native single-player lock. It allows you to host a lobby where three other survivors can join your world.
| Feature | Description | | :--- | :--- | | | Supports 2 to 4 human players in a single world. | | Proximity Saving | The world saves based on the host’s progress; guests retain inventory but not world placement. | | Shared Environment | All players see the same islands, weather, day/night cycle, and creature spawns. | | Host Migration | Generally absent; if the host leaves, the session ends (no dedicated server). |