Kerbal Space Program
2,268 Mods
SpaceX Launch Pack (LLP) by LazarusLuan
82.5k Downloads35-piece complete parts pack for KSP that includes the SpaceX Dragon V2, Dragon Cargo, Falcon 9 v1.1, Falcon Heavy and SHERPA launch systems.
TAC Fuel Balancer
76.5k DownloadsIt transfers, it balances, it mixes, it stirs!
Real Scale Boosters
76.5k DownloadsRealistically sized and balanced rocket parts, based on real world rockets.
RasterPropMonitor
75.1k DownloadsA plugin toolkit for producing glass cockpits and no end of IVA props
Lazor Guided Weapons
72.9k DownloadsLazor Guided Weapons.
Knes
72.2k DownloadsKnes
Cormorant Aeronology - Space Shuttle Pack
71.5k DownloadsParts Pack for Shuttle Building
SurfaceLights - Surface Mounted Stock-Alike Lights for Self-Illumination
71.2k DownloadsSurface Mounted Stock-Alike Lights for Self-Illumination
Endurance (Interstellar) Continued...
70.3k DownloadsThis mod is intended to recreate, visually and functionally, the Endurance spacecraft from the movie 'Interstellar.'
The Renaissance Compilation
68k DownloadsArtworks remake
Simple Hyperdrive! (HYPE) by Exodus_Solis and Monniaza
66.8k DownloadsThis mod is designed to help Sci-fi enthusiasts to create crafts of their dreams. With an integrated Hyper drive engine and a Hyper drive inline there is no limit.
BDynamics
64.9k DownloadsRetracting engines, vectoring jets, critter crawler.
MechJeb and Engineer for all!
64.7k DownloadsRemove the need to place MechJeb and Engineer parts on your ships
[x] Science!
62.9k Downloadsv4.0 - Ingame science checklist
BoatParts R4.65 for KSP 0.90
61.2k DownloadsPly the oceans of Kerbin in style! Build yourself a boat.
SDHI Service Module System
60.5k DownloadsService Module and accessories designed specifically for use with the stock Mk1-2 Command Pod, vaguely resembling NASA’s Orion MPCV. May or may not have a convincing stockalike appearance.
Heat Control
60.5k DownloadsMore radiators to manage your spacecraft's temperature
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.
Maneuver Node Evolved
57.4k DownloadsAn improved version of the stock maneuver node tool.
Diverse Kerbal Heads 1.0
57.3k DownloadsAn additional variety of kerbal head textures based off of shaw's and Sylith's Kerbal Heads.