Luna multiplayer

Multiplayer mod for KSP

Github Repo

PayPal Chat on discord Youtube video Latest release Total downloads

KSP forum post Latest build updater

Main features:

  • Clean and optimized code.
  • Multi threaded.
  • NTP protocol to sync the time between clients and the server.
  • UDP based using the Lidgren library for reliable UDP message handling.
  • Interpolation so the vessels won’t jump when there are bad network conditions.
  • Multilanguage.
  • Nat-punchtrough feature so a server doesn’t need to open ports on it’s router.
  • Servers displayed within the mod.
  • Settings saved as XML.
  • UPnP support for servers and master servers
  • Better creation of network messages so they are easier to modify and serialize.
  • Every network message is cached in order to reduce the garbage collector spikes.
  • Based on tasks instead of threads.
  • Supports career and science modes (funds, science, strategies, etc are shared between all players).
  • Cached QuickLZ for fast compression without generating garbage.

Please check the wiki to see how to install, run, build, debug or troubleshoot LMP among other things


Check how many servers are up and running either in Release or in Nightly versions

Release Nightly
Release servers Nightly servers

Renting Servers:

LMP is currently partnered with StyxNetworks. They provide a low cost minimal effort solution for getting your LMP server online. They take care of the hosting and leave the configuration down to you. You can access 100% of the LMP files with StyxNetworks and cancel anytime.


Consider donating trough paypal if you like this project. It will encourage us to do future releases, fix bugs and add new features!

Email: License