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Beta release
Released 12/17/2013
Announcement Kerbal Space Program update 0.23 is Live!
Steam Steam Community
0.22 0.23.5

Version 0.23 was released on December 17th, 2013.

New features

The R.A.P.I.E.R. Engine
  • All previous earned science can now be viewed in the Science Archives in the Research and Development facility.
  • Mobile Processing Lab MPL-LG-2 is a new part that functions as a portable laboratory and increases transmitted science yield.
  • New R.A.P.I.E.R. Engine that relies on intake air while in the atmosphere, and changes fuel to oxidizer when intake air can no longer suffice as a fuel.
  • Tweakables are different characteristics that allow changes to how certain parts function.
  • Science system has been updated so science cannot be maxed out by transmitting. Transmitting yields a certain amount of science, and bringing the science back to Kerbin for recover yields much more.
  • Certain science parts are now single-use, and cannot transmit data more than once, unless the instrument is cleaned with the lab module.
  • Science data can be retrieved from an instrument by a kerbal on EVA and stored in a crew pod, like an EVA report or surface sample.
  • New biome map for Minmus.
New part interface
  • New interface to show the properties of the parts in the VAB and Spaceplane Hangar.
  • Unity upgrade to version 4.2.2.
  • 6-DOF (6 Degrees of Freedom) device support for Windows only.
  • The EVA jet pack requires the resource EVA propellant instead of a percentage. Originally planned was that the corresponding monopropellant gets deducted when the Kerbal leaves the pod.[1] But the EVA fuel gets replenished either way. That's also the reason why all command pods have now got a small amount of monopropellant on board.

Bug fixes and tweaks

  • The spelling mistakes for the batteries were fixed.


  1. 0.23 Update News” by HarvesteR published on 5th November 2013