As of now, there is that officially expands the lobby size to four players for online play. The game was built from the ground up as a single-player experience, and even the official 2-player co-op update introduced significant stability challenges.
The demand for a larger lobby often stems from the game's own design cues: stranded deep 4 player mod
The starting airplane and life rafts actually feature four seats , leading many new players to assume 4-player co-op is a native feature. As of now, there is that officially expands
While you can't officially have four separate characters in an online session, some players use to bypass standard online limitations for local co-op games. While you can't officially have four separate characters
Surviving on a starter island is difficult with two people; four players could divide labor between deep-sea diving, hunting, and base building more effectively. Alternative: Steam Remote Play Together
However, players looking to overhaul their multiplayer experience often turn to the , which transforms the world scale and difficulty, making it better suited for group play if a future expansion ever arrives. Why Players Want 4-Player Co-op