NebulaMultiplayerMod

v0.9.23·Updated 2026-09-29

With this mod you will be able to play with your friends in the same game! Now supports combat mode in game version 0.10.35

About this mod Author’s original text

Nebula Multiplayer Mod

An open-source, multiplayer mod for the game Dyson Sphere Program.

Download Prerelease

Note: This is the bleeding edge build, for the more stable build see below. You can use this one if you want to try out the latest development builds, which may contain bugs and unfinished features.

You will also need some extra steps to get this installed, see 2nd point in "How can I play this mod?".

FAQ

Where can I get mod support?

Please join our Discord Server and ask your question in the support channel.

The mod often becomes incompatible after game updates. A temporary version rollback may be needed.

Some mods are not compatible with multiplayer. Check the NebulaCompatibilityAssist mod page to learn more.

How can I play this mod?

Please do keep in mind that this mod is still in development to keep up with game changes, it may still contain bugs.

  • Stable version of the mod can be downloaded (Recommended).
  • If you want to install the latest version of the mod, you can install pre-release versions be following the installation guide.
  • To connect, check hosting and joining guide. The mod uses TCP for direct connections, with the default port set to 8469.

Chat

The chat window can opened/closed using Alt + Backtick (configurable in Settings - Multiplayer - Chat). Also in settings is an option to disable the chat window from automatically opening when a message is received.

Type /help to view all commands, or view Chat Commands wiki page for more info.

Dedicated Server

The mod supports running the server in non-GPU environment. Check the wiki page to learn how to setup and the command-line arguments.

What is the current status?

Major refactors will happen while the project grows or game updates. Join the Discord Server if you want to see to latest state of our development. Check Wiki for overview of features.

The multiplayer mod now supports Dark Fog combat mode in the latest game version (0.10.35.x).

Most of the battle aspects are sync, only few features are still work in progress.

List of peace mode syncing features (click to expand)

  • [x] Server / Client communication
  • [x] Custom Multiplayer menu in-game
  • [x] Player Movement syncing on Planet
  • [x] Player Movement syncing in Space
  • [x] Player VFX syncing (jetpack, torch,...)
  • [x] Player SFX syncing (footsteps sound, torch sound,...)
  • [x] Players appearances syncing
  • [x] Game Time (UPS) syncing
  • [x] Universe settings syncing
  • [x] Client planet loading from server
  • [x] Planet vegetation mining syncing
  • [x] Planet resources syncing
  • [x] Build preview syncing
  • [x] Entity creation syncing
  • [x] Entity desctruction syncing
  • [x] Entity upgrade syncing
  • [x] Dyson spheres syncing
  • [x] Researches syncing
  • [x] Factories statistics syncing (some new extra info is not sync)
  • [x] Containers inventory syncing
  • [x] Building Interaction syncing
  • [x] Belts interaction syncing (pickup, putdown)
  • [x] Trash (dropped items) syncing
  • [x] Interstellar Station syncing
  • [x] Drones events syncing
  • [x] Foundation syncing (terrain deformation)
  • [x] Server state persistence
  • [x] Power network syncing (request power from dyson sphere)
  • [x] Warning alarm syncing
  • [x] Broadcast notification syncing (events with guide icon)
  • [x] Logistics Control Panel (I) syncing (entry list and detail panel)
  • [x] Planet Memo syncing
  • Goal system (currently not available in client)
  • Custom dashboard (clients will lost their custom stats when they leave the star system)
  • Wireless charge tower (power will not sync when mecha is charging)
  • Vegetation Transplantation

List of combat mode syncing features (click to expand)

  • [x] Sync settings of new building (BAB, turrets)
  • [x] Sync combat settings
  • [x] Sync DF ground enemy create/destroy events (factory.enemyPool)
  • [x] Sync DF ground units activate/deactivate event
  • [x] Sync DF space enemy create/destroy events (spaceSector.enemyPool)
  • [x] Sync DF space units activate/deactivate ev

Install & use Install: BepInEx plugin

  1. The archive from playbuff is the mod itself — usually a BepInEx plugin (a .dll or a plugin folder once unzipped).
  2. Recommended: use a community mod manager (such as r2modman) — pick this game, import the mod, and the manager sets up BepInEx and its dependencies for you.
  3. Manual route: install the BepInEx loader in the game folder, then drop the unzipped .dll or plugin folder into BepInEx/plugins/.
  4. Launch the game — the BepInEx console logs every plugin it loads; seeing this mod in the log means it is installed.

Mods with listed dependencies need those installed too, or they will not load. Options are usually changed in-game or in the plugin's config file.

Dependencies

Install these first, or the mod will not work:

PhantomGamers-IlLinexiaoye97-BepInExstarfi5h-ErrorAnalyzernebula-NebulaMultiplayerModApistarfi5h-NebulaCompatibilityAssiststarfi5h-BulletTime

File & checksum

Filename
NebulaMultiplayerMod-0.9.23.zip
File size
20.5 MiB