subnautica-2-coop-mod

Synchronize co-op survival state across connected Subnautica 2 peers.

4|Updated May 16, 2026
One-click install
npx skills add https://github.com/Aradotso/devtools-skills --skill subnautica-2-coop-mod
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: subnautica-2-coop-mod
Source: https://github.com/Aradotso/devtools-skills/tree/main/skills/subnautica-2-coop-mod
Command: npx skills add https://github.com/Aradotso/devtools-skills --skill subnautica-2-coop-mod

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

It solves the problem of running Subnautica 2 with other players by providing synchronized cooperative gameplay, so friends can share the same session state instead of playing separately.

Core Features & Use Cases

  • Peer-to-peer co-op networking: Establish direct connections between players (with NAT traversal) for a smooth multiplayer session.
  • Real-time state synchronization: Keep bases, inventory, and relevant world/game states consistent across clients.
  • Session hosting and resilience: Support host migration and session persistence, enabling continued play when the host changes.

Quick Start

Install BepInEx 6.0.x into your Subnautica 2 directory, then place the DeepSynergy/DeepSynergy.dll and synergy_profile.json files under BepInEx/plugins/DeepSynergy/ and start a session in-game with /start_server.

Frequently Asked Questions about subnautica-2-coop-mod

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I set up multiplayer co-op in Subnautica 2?

To install the Subnautica 2 multiplayer mod, place DeepSynergy.dll and synergy_profile.json into the BepInEx/plugins/DeepSynergy/ directory after installing BepInEx 6.0.x, then launch the session using /start_server.

Does Subnautica 2 co-op support base building and inventory synchronization?

Yes, Subnautica 2 co-op provides real-time state synchronization, ensuring that base building, inventory, and relevant world states remain consistent across all connected peers during a multiplayer session.

Can I continue a Subnautica 2 multiplayer session if the host leaves?

Yes, you can continue a Subnautica 2 multiplayer session if the host leaves because the mod supports host migration and session persistence, allowing gameplay to resume seamlessly under a new host.

How does peer-to-peer networking work for Subnautica 2 multiplayer?

Peer-to-peer networking for Subnautica 2 multiplayer works by establishing direct connections between players using NAT traversal, enabling smooth co-op survival without requiring a dedicated server.

What is BepInEx and do I need it to play Subnautica 2 with friends?

BepInEx is a required modding framework for Subnautica 2 co-op. You must install BepInEx 6.0.x into your game directory to load the DeepSynergy plugin and enable synchronized multiplayer sessions.

How do I configure Subnautica 2 multiplayer session parameters?

You can configure Subnautica 2 multiplayer session parameters by editing the synergy_profile.json file in the plugins folder or by using in-game console commands to adjust settings like adaptive difficulty scaling.