Multiplayer mod for Kerbal Space Program (KSP)

Remote Procedure Calls for Kerbal Space Program

Hundreds of Kerbals were killed in the making of this mod.

Community developed continuation of Kerbal Space Program's RemoteTech mod.

Real Scanning, Real Science, at Warp Speed!

𝑛-Body and Extended Body Gravitation for Kerbal Space Program

An online tool providing automatic design of trajectories with multiple gravity assists for Kerbal Space Program.

An add-on for Kerbal Space Program (KSP) to enable virtual reality.

Powered Explicit Guidance Ascent System - a KSP & RO autopilot using the Space Shuttle guidance algorithm, UPFG

MOARdV's Avionics Systems for Kerbal Space Program - a new generation of IVA enhancement.

DMagic Orbital Science: KSP science parts and modules.

Nexus AutoDL is an autoclicker (a.k.a., autodownloader, bot) that helps automate downloading mods from Nexus Mods

Strips out CRP default distributions and applies resources by logical body composition

A continuation of StretchySRBs, which is a continuation of StretchyTanks

A revamp of the Kerbal Simpit Mod for KSP

A plugin collection for Kerbal Space Program

Distant Object Enhancement bis plugin for Kerbal Space Program

TweakScale lets you change the size of a part. Check also the https://github.com/net-lisias-ksp/TweakScaleCompanion where support for third-parties is being added!

KSP Trajectory Optimization Tool