The game reached its "1.0" full release status, and the Beam Team Games forums indicate that focus has shifted away from adding major new multiplayer features. Common Misconceptions
Disclaimer: Mods can cause unexpected gameplay behavior. Always back up your save files ( Documents/Stranded Deep/Data ) before installing new mods. If you'd like, I can: Help you find the for 2026.
The mod is technically an "unlimited players" mod, though it is most famously used to unlock the third player slot. It bypasses the hardcoded check in the game’s code that limits the lobby size to two.
Search Nexus Mods for "Stranded Deep Multiplayer Limit" or "More Players Mod." Download the compressed mod folder. Do not unzip it.
Most advanced Stranded Deep mods require a framework injector like BepInEx or Unity Mod Manager (UMM).