Luna Multiplayer

DMP adds multiplayer to Kerbal Space Program, letting players see one another's activity in the game.

d-mp.org
Luna Multiplayer homepage screenshot

About Luna Multiplayer

DMP (Luna Multiplayer) is a multiplayer mod for Kerbal Space Program. Players install the DMP client and join a server from the project's server list, where they can see other players' activity in the game and fly together.

Key features

  • Downloadable client that adds multiplayer to Kerbal Space Program
  • Server list for finding and joining existing games
  • Separate server download for players who want to host
  • Hosting requires forwarding default port 6702 in the router
  • Reporting server plugin needed to appear on the server list
  • Project-run Mumble VoIP server at d-mp.org, default port 64738
Best for: Kerbal Space Program players who want to share a game session with others or watch other players' in-game activity.
Good for
  • Client is installed and then connected to servers from a published list
  • Players can run their own server using the provided server download
  • Voice chat is available through the project's own Mumble server
Watch out for
  • Self-hosting requires port forwarding on your router
  • Being listed on the server list depends on installing the reporting plugin
  • The homepage states no pricing information

Luna Multiplayer at a glance

Website
d-mp.org
Type
Website
Pricing
Not confirmed. Check the site
Platforms
Web
Open source
Not stated
Language
English
Last checked
Oct 6, 2026 · Online when checked
Listed
Oct 5, 2026

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Luna Multiplayer FAQ

How do I join a DMP game?
Download and install the DMP client, then join a server from the server list.
How do I host my own DMP server?
Download the server, forward the default DMP port 6702 in your router, and install the DMP reporting server plugin if you want to be listed on the server list.
Does DMP include voice chat?
DMP runs its own Mumble server; connect to d-mp.org using the default port 64738, and download the Mumble client separately.
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