Modifying game files violates the Steam Subscriber Agreement and Stranded Deep’s EULA in theory. However, Beam Team Games has historically turned a blind eye to co-op mods, as they do not sell multiplayer DLC. You will not get banned (there are no VAC servers), but you also cannot receive technical support from the developers.
Focuses on chopping wood, building a massive base, and crafting storage crates.
While a 4-player mod isn't currently viable, you can still enhance your cooperative play. 1. The Official 2-Player Co-op stranded deep 4 player mod
Search Nexus Mods for the "Max Players Increaser" or "Multiplayer Limit Bypass" mod tailored to the current version of the game.
To make the most of your expanded multiplayer experience, implement these strategies with your group: Modifying game files violates the Steam Subscriber Agreement
How to before attempting to mod the game?
Ensure every single player has the exact same version of the mod and the base game installed. Small version mismatches will boot players to the main menu. Focuses on chopping wood, building a massive base,
While a pure 4-player mod remains unavailable, the modding community has created several useful tools that indirectly improve the multiplayer experience. These mods focus on enhancing the existing 2-player co-op, fixing bugs, or adding quality-of-life features. Some of the most notable include:
Base Stranded Deep is atmospheric but solitary. Adding three friends changes everything. You can assign roles: one fishes, one chops trees, one builds the raft, one hunts giant crabs. The shared panic when a shark flips your raft is genuinely hilarious.