Stranded Deep 3 Player Mod Today

While you cannot increase the player count, you can still enhance your 2-player experience using the Unity Mod Manager (UMM) :

The primary reason a functional "more than 2 players" mod hasn't surfaced is the game's peer-to-peer networking architecture. Even in official co-op, players frequently report: stranded deep 3 player mod

Allows players to switch to a fully functional third-person perspective, which can make navigating the environment more comfortable during co-op. While you cannot increase the player count, you