Outer Planets Mod CKAN

License: CC-BY-NC-SA 4.0

Game Version: 1.2.1

Downloads: 90,815

Author: CaptRobau

Mod Website: Forum Thread

Followers: 306

Outdated Mod

This mod is not known to work with the latest version of Kerbal Space Program. Proceed with caution.

Information Changelog Stats

READ THIS: Outer Planets Mod is no longer being actively maintained through this thread. Click this link to go the new thread, where OPM is being developed by a group of people.

This mod requires the third-party mod Kopernicus to be installed. Get it here.

Outer Planets Mod is a mod that expands the outer edges of the Kerbol system, to create something akin to the real Solar System's. It adds Kerbalized versions of Saturn, Uranus, Neptune and Pluto, just like real-life. These faraway planets and moons provide a challenge rarely encountered in Kerbal Space Program. You'll have to figure out new transfer windows, provide your spacecraft with more Delta-V and be ready to travel years or even decades.

Fation and screenshots, see the forum thread


  • Explore 17 highly detailed planets and moons, all in a stock-a-like artstyle
  • Discover never before seen worlds, such as a subsatellite, Trojan moon or a set of binary bodies
  • Custom terrain textures and improved ground scatter has made planets and moons never look so good up close
  • A full set of KSPedia entries for OPM’s various bodies helps you to navigate the far reaches of the Kerbol system
  • Extensive third-party mod integration means you can play OPM with a whole range of other mods


Version 2.1 for Kerbal Space Program 1.2.1

Released on 2016-11-16

  • Redid normals for all bodies expect Ovok
  • Fixed ASL pressure readouts in the body overview in map mode
  • Removed support for the outdated KopernicusExpansion
  • Added MM config that fixes white texture issue for Scatterer users
  • Added a config that adapts the new antenna functionality of KSP 1.2 to work with the greater distances
  • Redid all timewarp levels to transition more quickly to useful speeds
  • Rebalanced science payout adjustments
  • Adapted the Karbonite configs to the biome revamp
  • Redid all existing OPM biomes
  • Adjusted the science descriptions to account for the new/different biomes
  • Added biomes and science blurbs to Plock, Karen, Sarnus, Neidon and Urlum
  • Gave the biome maps more pleasant color palettes


Version 2.0 for Kerbal Space Program 1.1.3

Released on 2016-05-21

Gameplay: * Overhauled Hale's terrain, making it a bit more detailed and the cliffs slightly more imposing * Set Ovok's min- and maxLevel to 1 to greatly reduce the spikiness by forcing the most simple terrain setting to always be active * Overhauled Eeloo's terrain, adding procedural craters and improving terrain detail in general * Overhauled Slate's terrain, making the volcano and mountains more imposing, adding procedural craters, improving terrain detail in general * Overhauled Tekto's terrain, making the terrain a bit smoother, more detailed and lining up the ocean better with the color map * Overhauled Polta's terrain, adding procedural craters and improving terrain detail in general * Overhauled Priax's terrain, slightly changing the shape and increasing terrain detail to create a more chaotic, Hyperion-like feel * Overhauled Wal's terrain, making the central ridge's height a bit shorter (more realistic), adding procedural craters, improving terrain detail in general * Overhauled Tal's terrain, radically reducing spikiness and making it a more detailed and smooth body * Overhauled Thatmo's terrain, adding * Overhauled Nissee's terrain, radically reducing spikiness and making it a more detailed and smooth body * Overhauled Plock's terrain, reducing spikiness, adding procedural craters and increasing detail in general * Overhauled Karen's terrain, reducing spikiness, adding procedural craters and increasing detail in general * Added improved terrain scatter to all solid OPM bodies * Reduced Slate's gravity from 0.85 to 0.692, to make it the Tylo Lite that it was intended to be

Visual: * Added an community sub-mod to the download called CTTP that contains high-quality terrain textures * Added custom terrain textures to all solid OPM bodies * Added better quality height maps for Plock and Karen with less artifacts * Added better quality color map to Tekto with less artifacts * Replaced Slate's color map with a 4K version * Re-imported height maps for Plock, Karen and Tal from source files to remove artifacts that had appeared through editing * Downsized Nissee's height map from 2K to 1K to produce smoother terrain * Downsized Thatmo's color map from 4K to 2K, as the moon did not need the extra resolution to look good * Redid all ScaledSpace/PQS fades to make the transition smoother * Removed cache files to save space, replacing them with a method to generate them on first launch at the cost of a few extra seconds loading time * Redid normal maps for all solid OPM bodies * Redid the contrasts for the OPM bodies to make the transition from ScaledSpace to PQS smoother

Interface: * Added KSPedia entries for Outer Planets Mod, courtesy of Poodmund

Mod support: * Added missing text for discovering Karen in the ResearchBodies config * Redid all the existing OPM discovery texts in the ResearchBodies config

Bugfixes: * Fixed a typo in the temperatureSeaLevel variable in Tekto's cfg * Fixed Ovok's strange ScaledSpace lighting swirl at the poles * Fixed Wal's normal map cutting off before the top of the equatorial ridge * Fixed Nissee's North polar mountain

Miscellaneous: * Changed the orders of the PQSMods to 10, 20, 30, etc. in order to make it easier to understand * Shuffled the PQSMods in the cfgs so they matched their order * Switched template of Slate, Tekto, Polta, Priax, Tal, Nissee, Thatmo, Plock and Karen to Moho to make the terrain overhaul easier * Removed unnecessary PQSMods that were inherited by OPM bodies from their templates * Updated the AVC version file * Removed the Kopernicus license, since it is no longer bundled with the mod


Version for Kerbal Space Program 1.1.2

Released on 2016-05-02

  • Fixed an issue with the game loading the wrong normals for the OPM gas giants
  • Updated the AVC version file


Version 1.9.5 for Kerbal Space Program 1.1.2

Released on 2016-05-02

  • Removed Module Manager from download (please use the MM version included with Kopernicus)
  • Added FlyingAltitudeThresholdvalues to Thatmo's ScienceValues
  • Added SpaceAltitudeThresholdvalues to Plock's ScienceValues
  • Add a custom gravity value to Karen
  • Added ScienceValues to Karen
  • Added timewarpAltitudeLimits to Karen
  • Removed duplicate value tidallyLocked in Thatmo's cfg
  • Redid some older FinalFrontier badges to fix some issues they had
  • Fixed two errors in the science blurbs
  • Redid the SigmaBinary support as it now has a new plugin-based work flow
  • Removed PlockKaren.cfg since it's been made obsolete because of the SigmaBinary changes
  • Reworked the temperature and pressure curves of OPM's atmospheric bodies to give them more realistic atmospheres, courtesy of OhioBob
  • Switched Sarnus, Urlum and Neidon to use Jool as a template to fix issues with lighting present since 1.1.1
  • Removed some values in the ScaledSpace section of the OPM gas giants to account for the switch to the Jool template
  • Sarnus, Urlum and Neidon now use the same cloudy normal map that Jool uses
  • Updated the AVC version file


Version 1.9.2 for Kerbal Space Program 1.0.5

Released on 2016-02-22

  • Added procedural asteroid moons to Jool, Sarnus, Urlum, Neidon and Plock through the CustomAsteroids mod
  • Updated PlockKaren.cfg to latest version of the SigmaBinary template
  • Changed the texture paths/locations to allow for LoadOnDemand functionality
  • Made Karen's description a bit vaguer to account for the optional nature of the SigmaBinary mod
  • Redid the FinalFrontier ribbons for Plock to reflect its new look
  • Added FinalFrontier ribbons for Karen
  • Fixed the incorrectly sized ScaledSpace .bins for Plock and Karen
  • Updated Module Manager to version 2.6.17
  • Updated the AVC version file


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