Kerbal Space Program
2,277 Mods
Utility and Navigation
Miscellaneous
Science
Parts Pack
Propulsion
Structural and Aerodynamic
Gameplay
Resources
Command and Control
Ship Systems
Sub-Assembly
Physics
Twitch Integration
(.90) Stanford Torus 0.6.1
10.9k DownloadsBuild a stanford torus and the infrastructure to support it
Next Star Industries
10.7k DownloadsHuge parts mod adds over 400 parts currently and growing.
Parts O' Plenty
10.7k DownloadsKerbalKingsInc. adds some useful parts that can be used in anything from Aircraft to Giant ROCKETS
Kerbal Spacedock 1.0
10.5k DownloadsThree spacedocks to help build the shipyards of your dreams without the insane part count destroying your framerate!
Mini Sample Return Capsule (MSRC) by CobaltWolf, and AlbertKermin
10.3k DownloadsTwo size zero (0.625m) parts that make up an autonomous return capsule to stuff your experiments in for Kerbal Space Program.
KerBalloons - Reinflated
10.2k DownloadsKerBalloons - Scientific research balloons
Large Structural Components Redux
10.1k DownloadsA set of large stock-alike structural parts used primarily for station construction.
Dreamer (DREAM) by artwhaley
10k DownloadsVertical launch spaceplane with cargo bay and docking nosecone!
Space Shuttle RCS Nosecones (RCSN) (SSNC)
9.6k DownloadsAdds A Space Shuttle Style RCS Nosecone for the new MK3 cockpit
KipDockingPorts
9.5k DownloadsA set of useful docking ports for Kerbal Space Program, originally by Captain Kipard.
Heat-Resistant Parts (HRP)
9.3k DownloadsStock parts tweaked to survive faster-than-sound speeds.
AB Launchers
9.3k DownloadsA modular part set for very heavy payloads, based on Energia and it's prospective derivatives.
Simple Cargo Solutions (CARGO) by artwhaley
9.3k Downloadsjust a couple of simple Stock-alike cargo bays.... and here they are!
Lithobrake Exploration Technologies (LET) (LETech) by NecroBones
9.2k DownloadsA parts pack that is focused on exploring other worlds, and returning safely to Kerbin. The emphasis is on surface exploration, particularly with large rockets and large landers.
Blue Tie Space Science Pack
9.2k DownloadsScience Fiction pack for the fun of it.
RLA Stockalike
9.2k DownloadsPart pack to fill in stock niches. Includes 0.625m parts, Monopropellant engines, probe cores and much more.
Vertical Propulsion Emporium
9.1k Downloads[0.90]Professor Phineas Kerbenstein's wonderous vertical propulsion emporium v0.19a
Chaka Monkey Exploration Systems
9.1k DownloadsFull Version 1.0.2
Flags
9.1k DownloadsFLAGS!!!
GingerCorp Stock-alike Station Hubs
9.1k DownloadsAlternate station hubs with varying numbers of ports.