Popular Mods

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1.3.0.0-release for KSP 1.12.3

Solar Science (SOL) by Snoopy20111

A small addon adding two scientific instruments for experiments around Kerbol, the sun. Both are based on instruments currently aboard the SOHO and STEREO spacecraft, respectively.

Solar Science (SOL) by Snoopy20111

1.1.3 for KSP 1.12.5

ModuleDepthMask

Portable Holes for your Parts!

ModuleDepthMask

0.3.99.0-adoption for KSP 1.12.5

Sea Dragon (SEA) by NecroBones

The infamous, never-built Sea Dragon rocket, in its full scale glory!

Sea Dragon (SEA) by NecroBones

1.40.20250710 for KSP 1.12.5

SIMPLEX TechTree

AngleCan SIMPLEX TechTree is a rework of the Stock Tech Tree.

SIMPLEX TechTree

0.9.99.0 for KSP 1.12.2

MoarKerbalsParts

Beautiful Parts for MoarKerbals

MoarKerbalsParts

1.4.0 for KSP 1.12.5

Artemis Construction Kit

Adds parts inspired by NASA's Artemis missions including Orion & SLS

Artemis Construction Kit

2.1.0 for KSP 1.12.5

SSTO Project

SSTO project add wide range of high-performance spacecraft parts

SSTO Project

1.1.1 for KSP 1.12.5

Silly Photon Drives

A mod that adds some engines that rely on only electricity to produce thrust via photons.

Silly Photon Drives

1.1.0 for KSP 1.12.5

Minor Planets Expansion

The Minor Planets Expansion (MPE) is made to work along-side the glorious Outer Planets Mod to make a more complete analogue to our real solar system. It does so by adding a total of 15 new objects, from asteroids to dwarf planets! All of which use hand-drawn heightmaps, have biome maps, and even science definitions!

Minor Planets Expansion

0.11.4.5 for KSP 1.9.1

Dr. Jet's Chop Shop

Properly oriented rover bodies, deployable skycranes, dual-axis solar panels, SpacePlane+ (Mk2) parts, blisters, structural hubs and other useful parts.

Dr. Jet's Chop Shop

2.4.99.0-adoption for KSP 1.12.3

Precise Maneuver (PM) by Morse

Precise Maneuver (PM) plugin provides a window for more precise maneuver node editing.

Precise Maneuver (PM) by Morse

3.3.2.1 for KSP 1.12.5

TweakScale Rescaled

Rescale parts in the vessel editor. Faster, more features, fewer bugs.

TweakScale Rescaled

1.9.99.3-prerelease for KSP 1.12.4

Wernher's Old Stuff (WOS) by TiktaalikDreaming

Old rocket parts from the dawn of the rocket age, back during kerbals Komplete Konflict II. Wernher von Kerben's legacy. Old Aggregate rockets including those that were never built. For Kerbal Space Program.

Wernher's Old Stuff (WOS) by TiktaalikDreaming

2.6.2.1 for KSP 1.12.5

MOAR Station Science

This mod adds several large parts designed to be integrated into a permanent space station

MOAR Station Science

1.4 for KSP 1.12.3

DefaultActionGroups

Part actions automatically in the action group of your choice.

DefaultActionGroups

V1.13 for KSP 1.11.1

Endurance (from Interstellar) Continued...

This mod is intended to recreate, visually and functionally, the Endurance spacecraft from the movie 'Interstellar.'

Endurance (from Interstellar) Continued...

4.0 for KSP 1.12.5

ATK Propulsion Pack

Add's various solid rocket motors from Orbital ATK to the game

ATK Propulsion Pack

1.4.3.0-release for KSP 1.12.5

Mini Sample Return Capsule (MSRC) by : CobaltWolf and AlbertKermin

Two size zero (0.625m) parts that make up an autonomous return capsule to stuff your experiments in for Kerbal Space Program.

Mini Sample Return Capsule (MSRC) by : CobaltWolf and AlbertKermin

0.5.13.1 for KSP 1.12.5

Wernher Checker Continued

Checklist

Wernher Checker Continued

1.0.7.8 for KSP 1.12.5

Antenna Helper

Math your Antenna Range and Signal Strength

Antenna Helper

1.0.3.0-release for KSP 1.12.5

SpaceY Corporation (SYC)

Space, why? Because it's there! Y is greater than X. Adds SpaceY Corporation's agent, flags, and common config files used in all SpaceY add-ons for Kerbal Space Program.

SpaceY Corporation (SYC)

1.0.7 for KSP 1.12.5

Kerbal Weather Project

Kerbal Weather Project (KWP) is a groundbreaking weather and climate mod for KSP. In KWP, weather and climate data from the Model for Prediction Across Scales (MPAS) were incorporated into KSP gameplay. KWP includes a global Hourly climatology from MPAS enabling players to experience diurnal and spatial variations in atmospheric conditions. In addition, point weather data from MPAS is provided at Kerbin launch sites, allowing payers to experience dynamic weather conditions that change daily. KWP features a text-based GUI showing remote sensing weather data (in space) and in situ weather data (in the atmosphere).

Kerbal Weather Project

1.9.2_-_HOTFIX for KSP 1.7.3

Extrasolar: Planets Beyond Kerbol

Adds a new star system in orbit around the Kerbol System

Extrasolar: Planets Beyond Kerbol

v1.1.0 for KSP 1.12.5

BetterKerbol

Graphics overhaul for Kerbol, with new high resolution textures, light curves, and optional Scatterer support and size scaling

BetterKerbol

1.2.99.0-prerelease for KSP 1.12.3

On Demand Fuel Cells (ODFC) by Orum

On Demand Fuel Cells (ODFC) is a plugin to support fuel cells that only generate power when it is needed, thereby saving precious fuel. Simulates fuel cells in Kerbal Space Program (KSP), and do a better job of it than stock's use of a resource converter. The main difference is it only generates electricity when it's really needed (batteries almost empty), and otherwise lets electricity of a craft float up and down, as it might in a solar powered vehicle when the sun is eclipsed by another celestial body. It also allows fuel cells to generate byproducts, aimed at supporting life support mods like TACLS.

On Demand Fuel Cells (ODFC) by Orum

4.1 for KSP 1.11.1

Planet Wiki

Planet Wiki is an in-game reference sheet full of information on every celestial body in the game.

Planet Wiki

0.3.2 for KSP 1.12.3

Realism Environmental Overhaul

A visual mod that adds visual effects to real solar system

Realism Environmental Overhaul

0.3.99.0-adoption for KSP 1.12.3

Coyote Cargo Freighter (CCF) by dboi88

Coyote Cargo Freighter by Coyote Space Industries (CSI) is a massive parts pack for Kerbal Space Program.

Coyote Cargo Freighter (CCF) by dboi88

1.16.0.14 for KSP 1.12.5

Kerbal Research & Development

Spend science points to improve the stats of the parts you have already unlocked in a career game.

Kerbal Research & Development

0.2 for KSP 1.12.5

KSRSS Volumetric Clouds

Bring volumetric clouds to KSRSS

KSRSS Volumetric Clouds

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