Kerbal Space Program
2,278 Mods
KSP Interstellar Extended
1M DownloadsKSP Interstellar Extended aims to continue in providing a realistic road to the stars.
Near Future Spacecraft Parts
631k DownloadsStockalike spacecraft parts with a futuristic look
Magic Smoke Industries Infernal Robotics
493k DownloadsMake things move!
SCANsat
406k DownloadsSCANsat: Real Scanning, Real Science, Warp Speed!
DMagic Orbital Science
333k DownloadsNew science parts and experiments
Station Science
326k DownloadsNew science experiments and lab modules; give your space stations purpose!
Community Tech Tree
223k DownloadsExpanded tech tree for KSP
For Science!
160k DownloadsYour science autopilot.
Tarsier Space Technology Continued...
139k DownloadsSpace Telescopes with Galaxies and Rover Chemical analysis
Asteroid Day
103k DownloadsKerbal Space Program's second official mod, dedicated to Asteroid Day & the B612 Foundation
Endurance (Interstellar) Continued...
70.3k DownloadsThis mod is intended to recreate, visually and functionally, the Endurance spacecraft from the movie 'Interstellar.'
[x] Science!
62.9k Downloadsv4.0 - Ingame science checklist
Papa_Joe
57.9k Downloadsv 6.0.3.0 - Ship Manifest moves Crew, science, resource around your vessel. also controls lights, hatches, antennas & solar panels.
FASA - Kerbal NASA - Mercury to Apollo
53.4k DownloadsFASA is a mod for kerbal that adds in early NASA rockets and pods incuding Mercury, Gemini, Apollo, and many more.
AIES
48.3k DownloadsSet of parts for all kinds of missions and rocket parts
Tarsier Space Technology
44.9k DownloadsTarsier Space Technology is a set of parts with enhanced science capability
AutomatedScienceSampler
44k DownloadsAutomates science experiment execution.
Contracts Window +
42.3k DownloadsA new, more flexible contract monitoring window.
Solar Science (SOL) by Snoopy20111
41.5k DownloadsA small addon that adds a couple new scientific instruments to do science around Kerbol (plus some flags).
Taurus HCV - 3.75 m CSM System
36.9k DownloadsA 3.75 meter stockalike capsule that holds 7 kerbals - Includes IVA and multiple Service Module Parts