How to before attempting to mod the game?
As of 2026, Stranded Deep does not officially support 4-player multiplayer; the game is limited to 2-player online or split-screen co-op stranded deep 4 player mod
Allows you to invite a friend to play local split-screen online, but it is still limited to a total of 2 players. Why a 4-Player Mod is Difficult How to before attempting to mod the game
: Experienced modders often use tools like UnityExplorer or specialized DLL injections found on platforms like Nexus Mods and the Steam Workshop to manipulate the game's session variables. The mod is not plug‑and‑play
The mod is not plug‑and‑play. You’ll need to downgrade your game to a specific version (often 0.90 or earlier) because the mod lags behind official updates. Expect crashes, desyncs, and “ghost” items that only one player can see. A dedicated host with a strong PC is mandatory.