Kerbal Space Program 1.5: Dressed for Success is now available.With this update both the base game and the expansion are getting their share of enhancements. With that in mind, a key aspect in this update is the optimization and fresh makeover of various parts, as well the improvement of the burn time indicator!
Recent Reviews:
Very Positive (320) - 89% of the 320 user reviews in the last 30 days are positive.
All Reviews:
Very Positive (42,163) - 90% of the 42,163 user reviews for this game are positive.
Release Date:
Apr 27, 2015

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October 15

Kerbal Space Program 1.5: “Dressed for Success” is now available!

Hello everyone!

Kerbal Space Program 1.5 Dressed for Success has launched and with it we bring new content that brings your game experience forward. We are driven to continue with our never-ending quest of making KSP the best game it can be through continuous support and substantial updates.

Kerbal Space Program 1.5: Dressed for Success has something for everyone, as both the base game and the expansion are getting their share of enhancements. With that in mind, a key aspect in this update is the optimization and fresh makeover of various parts, as well as the classic EVA and IVA Space Suit. Additionally, players will find a number of brand new features, as well as good ol’ bug sweeping.

Let’s go through some of this update’s highlights:

New Suits

Both the recruit and veteran classic EVA and IVA Space Suits have been given a well-deserved overhaul. We knew that such an iconic element of the game needed to stay true to its identity, so we are keeping its style, while also giving it a sleeker look.

Revamped Parts

Many parts have been given a fresh new look in an effort to have a more cohesive parts catalog. While staying true to the game’s original essence, the geometry and texture maps of these parts were completely redone. Some of these parts also include new texture variants for you to choose at will, and others have a new shader that makes their metallic bits interact better with light.

Improved Burn Time information

We improved the burn time indicator by recalculating based on dV and not acceleration. Additionally, we’ve added a staging indicator that shows which stages contain the dV needed to complete each part of the maneuver. Go to the advanced settings to turn on this exciting new


Update 1.5 has also a few improvements exclusive to the Making History Expansion:

The Part Count Node

This node makes a comparison between the state of a vessel in two separate moments and by defining the number of parts itself; with it you’ll be able to test whether a vessel has or hasn’t lost parts (destroyed or decoupled) during any point on a mission.

Underwater Fly Through Nodes

With Dressed for Success you’ll be able to place Fly Through Nodes underwater, expanding mission creation possibilities.

And much more!

Check out this patch's Changelog for further details:

1.5 Changelog - BaseGame ONLY (see below for MH changelog)
+++ Improvements
*Optimized the game for 4K resolution and increased the UI scale to 200%
* Added higher impact tolerance to retracted solar panels.
* Deployable parts now use separate value for their impact resistance when retracted.
* Implemented a new version of the kerbal suits for the base game. This includes IVA suits for recruits and veterans as well as EVA suits.
* Revised the behaviour of asteroids within Kerbin’s SOI and gave them better VFX.
* Added a "What's New" dialog to the main menu, where you can quickly see the highlights of the release as well as the full change log. (you're probably reading this from that very dialog).
* Improved Burn Time information on Maneuver nodes. Includes correctly calculated burn time and Stage Information; Burn bar indication when vessel does not have enough DeltaV to perform the maneuver.
* Staging of docking ports now available in flight. Changing staging of docking ports allows the player to change the Delta-V of the vessel for docked vessels which changes the Burn Time Information on Maneuver nodes.
* Kerbals can now be placed in external command seats in the VAB/SPH.
* Wheel suspension now has auto spring/damper to combat bouncing wheels.

+++ Localization
* Fix lingoona gender tags in resource names in PAWs.
* Localization of bulkhead size and other automatic search string tags.

+++ Parts
Updated Parts (reskinned):
* Mk1 Command Pod
* RoveMate
* Stayputnik
* FL-T100
* FL-T200
* FL-T400
* FL-T800
* RT-5 “Flea” Solid Fuel Booster
* RT-10 “Hammer” Solid Fuel Booster
Color Variants:
* Mk1 Command Pod (New “Dark”, “White” and “Gray and White” color variants)
* RoveMate (New “White”, “Silver” and “Gold” color variants)
* FL-T100 (New “Black and White” and “Orange” variants)
* FL-T200 (New “Black and White” and “Orange” variants)
* FL-T400 (New “Black and White” and “Orange” variants)
* FL-T800 (New “Black and White” and “Orange” variants)
* RT-5 Flea (New “White” and “Yellow” variants)
* RT-10 Hammer (New “White” and “Yellow” variants)
Other Part changes:
* Some parts now take advantage of the new “Bumped Specular (Mapped)” shader which achieves significantly better metallic reflections.
* Fix issue where engine shrouds were becoming offset on vessel focus.
* Improved OKTO and OKTO2 mesh colliders to fit them better.
* Improved Stayputnik attach node positions to make better contact with other parts.
* Rotated the RoveMate ninety degrees to make it match with its Navball orientation; also added 4 new attachment nodes to the sides.
* HECS rotation fixed - rotated 30 degrees. - NB:This does rotate the control orientation for old vessels using this part.

+++ Bugfixes
* Fix issue where incorrect tooltip icons were being displayed in the R&D scene.
* Fix icon blurring for flags, icons, tutorial images (and more) at different texture settings.
* Fix mini-biomes persisting after touching one and then moving vessel away from it.
* Fix mini-biome structure detection around the KSC.
* Fix log spam and messages related to stock launch sites if Making History DLC is not installed.
* Fix issues with decouplers in symmetry being staged via the Part Action Window.
* Fix issues with decouplers in symmetry being staged separately.
* Fix transparent materials in Part Picker Icons.
* Fix Gigantor XL panel when using Undo in editor.
* Fix transparent materials showing in part highlighting in editor.
* FIx for ship orbit line not rendering when burning straight from a physics bounce on flight load.
* Music volume settings are now applied as soon as the player leaves the settings menu in the KSC.
* Ambient noise in KSC and VAB/SPH is now controlled by ambient volume setting and not the music setting.
* Fix music problems when switching between VAB and SPH.
* Remove Gender on Resource displayName in PAW.
* The game no longer locks up when attempting to create a save file, vessel or mission using a reserved DOS name.
* Fix for Kerbal EVA’s clipping through vessel model when forcefully dismounted from an external command seat.
* Fix for auto localization keys coming up in the target icon when a vessel with a localized name was targeted and moused-over’d.
* The sun flare no longer shines through Jool.
* Fix for reentry VFX disappearing when the camera is far from the vessel.
* Fix for asteroids not displaying reentry VFX.
* Fix bug where kerbal parachute lifting surfaces weren’t active when loading a quicksave.
* Fix camera positioning on entering editor scene/loading vessel to show vessel correctly.
* Fix bulkhead filter strings to work for all valid sizes.
* Fix when a part is selected and the user attempts to write a ship description the hotkeys will still trigger.
* Fix In the editor-based tutorials, Werhner’s window overlaps the ship so you can’t place parts.
* Fix hard points reporting the wrong stage to the StageManager.
* Fix wheel friction being applied incorrectly based on Celestial Body G. Stops sliding on slopes.
* Fix wheel suspension bouncing.
* Fix exploding landing legs when docking/undocking.
* Fix landing legs applying massive spring setting when fully compressed.
* Fix community localization feedback for the Fly Through? Node pt.2
* Fix Community localization feedback for fly through Node pt. 2 in japanese.
* Fix German community localization feedback for "Schwerkraft mindern", changed to "Sanfte Schwerkraft Aktivierung"
* Fix Engine plates for all engine plates now show short on their first variant choice.
* Fix the changeLog screen now shows that is missing in the Localization that should instead of the code.
* Fix that space stations contracts now can be finished.

+++ Mods
* ModuleDeployablePart now has KSPField impactResistanceRetracted.
* ModuleWheelSuspension now has KSPField maximumLoad.

1.5 Changelog - Making History DLC ONLY
+++ Improvements
* Improved the Builder canvas system and connectors for speed and performance.
* Fly through node volumes can now be set with negative values for the volume to work with submarines.

+++ Localization
* English grammar, spelling, and punctuation fixes.

+++ Parts
Updated Parts (reskinned):
* SM-18 Service Module.
Color Variants:
* Structural Panels (Improved “Gold” variant and added a new “Silver” variant).
Other Part changes:
* SM-18 bottom lid uses the new “Bumped Specular (Mapped) shader”.
* Fix issue where engine shrouds were becoming offset on vessel focus.

+++ Bugfixes
* Fix Updating Steam Workshop Missions were creating duplicated workshop items.
* Fix for NRE when saving a mission where the craft files used in vessel situations have been deleted
* Fix Kerbals Exploding when resuming a test mission checkpoint taken on a Kerbal EVA node
* Fix issues with connector lines in Builder when changing planets in the GAP
* Fix where when boarding the EAS command seats were not triggering when a kerbal boarded for the node to pass.
* Fix when a vessel is spawned in an orbit, the orbit was getting the reference of the celestial bodies rotation, giving different results like a rotated orbit with the same orbit values on another node.
* Fix connector lines when in some cases they were badly rendered.
* “Selected part” option now appears when selecting one part in the repair node.
* Don't reset available and unavailable part lists when changing the part filter and update the list to handle the required parts nicely.
* Fix weights and costs of all the engine plate variants being the same.
* Solved discrepancy between the start mission time in the Mission editor and in the actual mission.
* Fixed GAP parts filter on some nodes so they work similar to the part restrictions on Vessel Spawn Node.
* Fixed normal map on mobile launchpads, Woomerang and Dessert launchpad.
* Fix for localization tags for localized vessel and node names coming up in various parts of the UI.
* Fix for incorrect information about docked nodes order of evaluation in intermediate tutorial.
* Fix mission Builder banners appear in low resolution with the 'Texture Quality' setting lowered.

+++ Missions
* Removed erroneous info about event node processing order from intermediate tutorial.
* Added the Part Count node, so player can check a vessel’s part count, even if the vessel is unloaded.

* Implemented new text for agent descriptions and mentality.


1.5.1 hotfix: Some players reported an issue regarding aerodynamics, which was applying body lift in the wrong direction. After some in-depth examination, we noticed that some of the code written for the asteroid physics revamp was interfering with the aerodynamic physics in certain circumstances, so we are releasing this hotfix to deal with this specific issue.
157 comments Read more

July 26

Kerbal Space Program 1.4.5 and Making History 1.4 is live!

Hello everyone!

Kerbal Space Program 1.4.5 and Making History 1.4 is live!

This patch includes various improvements and bug fixes for both the base game and the Making History Expansion, as well as a number of amends to the in-game integration of Steam Workshops and other Steam-related features!

Check out this patch's Changelog for further details:


1.4.5 Changelog - BaseGame ONLY (see below for MH changelog)
+++ Improvements
* Make mapnode behind body transparency configurable and improve behavior for pinned/hovered nodes (MAPNODE_BEHINDBODY_OPACITY in gamesettings).
* Pop dialogs can now be closed/dismissed with ESC key.
* Improvements to wheels/legs bouncing/sliding and oscillations. (Particularly when overloaded).
* Removed pop-up which offers to delete incompatible saves and craft files and replaced with a pop-up which only warns of incompatibility when incompatible save/craft files are attempted to be opened.

+++ Localization
* Fix RnD Archives Biome Filter not showing spaces in biome names.

+++ Parts

+++ Bugfixes
* Fix populating steam items into the wrong tabs in the craft browser/play missions dialog if the user switches tabs whilst waiting for responses from Steam.
* Fix Steam Workshop Craft will not download if deleted when subscribed to then resubscribed to when in the VAB.
* Fixed a bug where EVA facial animations were corrupted when the kerbal was mid-air and a quicksave was loaded.
* Fix settings showing for expansion when expansion not installed.
* Fix log message text for gathering subscribed Steam Workshop craft files.
* Handle steam item lists with correct Steam Workshop status in craft browser.
* Save craft file before exporting to steam to persist Steam Workshop Item Id into the craft file that is shared on steam.
* Update Steam Workshop Item Steam Author automatically in UI dialogs.
* Fix wheel explosions on docking landed vessels.
* Fix vessels jumping when docking landed to a large mass vessel.
* Fix Engineers report not taking variants into account for size dimensions.
* Fix Engineers report not showing correct part/mass/size restrictions when swapping between different level VAB/SPH using the switch editor button.
* Fix Kerbal on EVA occlusion inside all cargo bays as well as when the enter/leave command seats inside cargo bays.
* Revised the initial state of the Exploring Gilly scenario, so that vessels don’t bounce off the surface out of control on start.
* Fix vessels splashed inside another splashed vessel being removed when outside physics bubble.
* Fix undo in VAB/SPH not working when you delete all but the root part.
* Fix Reentry FX on Fairings.
* Adjust SRB Engine FX and Sparks.
* Fix NRE on PQSCity if transform has not been parented to a CelestialBody.
* Fix Aero FX appearing in IVA mode inside the models.
* Fix a localization issue that caused the Station One scenario to be corrupted in asian languages.

+++ Mods
* Added localScale param and behaviour to EffectDefinitions: PREFAB_PARTICLE, PREFAB_MULTI_PARTICLE, MODEL_MULTI_PARTICLE and MODEL_PARTICLE

* Add distinguishing titles between Steam Workshop Author and in-game user supplied Author in UI.
* Add warning messages for craft browser craft UI Steam Workshop items.
* Add cloud available space and file count checks when exporting craft and mission files to Steam Workshop.
* Add Steam Workshop subscribe/unsubscribe button to craft browser VAB/SPH tabs.
* Better handling of Steam Workshop items that are not in a valid state to be used in dialog UIs.
* Add option to delete in progress mission files when deleting a mission.
* Add Unity Analytics dialog and link to the players Unity Privacy Data page for personal data opt-out management.
1.4 Changelog - Making History DLC ONLY
+++ Improvements
* Allow minimum of 10m on fly through node.
* Added checks for vessel compatibility when loading missions.

+++ Localization

+++ Parts
* Added ModuleTestSubject for all of the MH Parts.

+++ Bugfixes
* Fixed Mission Builder exiting in some cases not closing the "Launch New Test" dialog.
* Fix mission breaking and PauseMenu lockup when a node is deleted from end of mission path.
* Fix nodes using Launch Sites as targets not detecting all Launch Sites.
* Fix missing string for Snap to Grid tooltip in Builder.
* Fix steam missions being out of sort order in mission lists.
* Fix Asian fonts not showing in mission list for Steam Workshop Items.
* Fix failure when going to the Tracking Station from the Mission Builder when there are no vessels.
* Fix persistence for Ignoresurfacevelocity setting on nodes.
* Fix Out of Range error when Vessel Explode action fires and disintegrates craft to separate vessels.
* Fix where on the Mission App it was not displaying correctly the target Launch Site name with the nodes: Vessel Destroyed and Vessel Landed.
* Some additional Loop protection in MEFlow Parser.
* Fix SnapToGrid locking in Mission Builder.
* Fix FlyThrough nodes waypoint being at surface and not the target location.
* Fix Test Distance node throwing log spam when target vessel may not have spawned yet.
* Fix slider percentage entries for part failure multipliers in Builder .
* Fix canvas objects not scaling with the UIScale settings.
* Fix DirectoryNotFound exception when playing a mission from Main Menu after previously testing a mission from the Mission Builder.
* Removed Invalid “none” option on Resource Drain node creating KeyNotFound exceptions.
* Fix when creating a new mission GAP size no longer resets to default.
* Fix test Kerbal EVA node when assigning specific vessels to the node for EVA test.
* Fix vessel landed node detection of launch sites.
* Fix for GAP rendering in an incorrect scale for the Landed Vessel node

+++ Missions

* Add Steam Workshop subscribe/unsubscribe button to Mission Play dialog on Community tab.

Happy launchings!
129 comments Read more

About This Game

In Kerbal Space Program, take charge of the space program for the alien race known as the Kerbals. You have access to an array of parts to assemble fully-functional spacecraft that flies (or doesn’t) based on realistic aerodynamic and orbital physics. Launch your Kerbal crew into orbit and beyond (while keeping them alive) to explore moons and planets in the Kerbol solar system, constructing bases and space stations to expand the reach of your expedition.

Kerbal Space Program features three gameplay modes. In Science Mode, perform space experiments to unlock new technology and advance the knowledge of Kerbalkind. In Career Mode, oversee every aspect of the space program, including construction, strategy, funding, upgrades, and more. In Sandbox, you are free to build any spacecraft you can think of, with all parts and technology in the game.

Key Features

  • Build spaceships, rockets, and vehicles using any imaginable combination of parts, each with their own function that will affect the way your spacecraft behaves.
  • Take full control over your ship’s setup to execute complex flight maneuvers.
  • Manage your Kerbal crewmembers, including hiring, training, and sending them into space to become heroes.
  • Discover a whole star system with unique moons and planets, exploring detailed terrain at a vast scale.
  • Send your Kerbal crew outside their ships for “extra-vehicular” activities.
  • Dock spacecraft together to construct space stations, massive starships, and surface bases on new planets.
  • Use satellites to scan terrain and find biomes and other anomalies.
  • Set up communications networks to communicate between your spacecraft and Kerbal Space Center.
  • Research and develop new technologies to extract valuable information and resources from all over the solar system, and much more!

Try out the many mods created by the Kerbal Space Program community!

System Requirements

Mac OS X
SteamOS + Linux
    • OS:Windows 7 64-bit
    • Processor:Core 2 Duo
    • Memory:4 GB RAM
    • Graphics:DX10 (SM 4.0) capable, 512MB VRAM
    • Hard Drive:3 GB HD space
    • OS:Windows 10 64 bit
    • Processor:Core i5
    • Memory:8 GB RAM
    • Graphics:DX10 (SM 4.0) capable, 1GB VRAM
    • Hard Drive:4 GB HD space
    • OS:macOS Mavericks (10.9) 64-bit
    • Processor:Intel
    • Memory:4 GB RAM
    • Graphics:SM 4.0 512MB VRAM
    • Hard Drive:3 GB HD space
    • OS: macOS Sierra (10.12)
    • Processor:Intel Core i5
    • Memory:8 GB RAM
    • Graphics:SM 4.0 1GB VRAM
    • Hard Drive:4 GB HD space
    • OS: Ubuntu 14.04 LTS 64-bit
    • Processor: Core 2 Duo
    • Memory: 4 GB RAM
    • Graphics: SM 4.0 512MB VRAM
    • Hard Disk Space: 3 GB HD space
    • OS: Ubuntu 16.04 LTS
    • Processor: Core i5
    • Memory: 8 GB RAM
    • Graphics: SM 4.0 1GB VRAM
    • Hard Drive: 4 GB HD space

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