Kerbal Space Program 0.19

Change logNew:* A Native Linux version! X nope* Added visual (and sound) effects for re-entry and supersonic flight.* Overhauled the Kerbal Face Expression System with new animations, which are also visible on EVA.* Added wheel parts and modules for the construction of rovers.* Added several new general purpose structural parts.* New mesh for the launch pad area, now with 100% less launch tower.* New mesh for the Runway, with sloping edges to drive on and off it.Bug Fixes and Tweaks:* The sun no longer shines from below on ships and scenery objects at night, or while in orbit over the dark side of a planet. * Fixed the airspeed sound not looping properly, and adjusted the pitch range for it.* Various minor balance tweaks.* More texture variety added to probe cores, to better determine their positioning.* Fixed a few objects that were on the wrong layer.* Fixed an issue when comparing versions, which could result in false 'incompatible' warnings.* Fixed an issue with velocity changes when resuming 1x time while on a hyperbolic orbit inside a rotating reference frame.* Changed the debug toolbar key combo to ModifierKey+F12 (RShift+F12 by default)* Changed the quick scenario loader key combo to ModifierKey+F10 (was Ctrl+F10 before)* Removed an unused shader that caused the game to crash on Linux systems with AMD video drivers.* The Alt modifier key is now remappable, and defaults to RightShift on Linux.* Remapped all ocurrences of the Alt key to RightShift on Linux (as Alt is OS-reserved on most distros).* Fixed double-clicks not working properly.* Added a setting to tweak the mouse wheel axis scaling.* Input Axes now support linear scaling.* The Debug console can now also be toggled using the Grave and AltGr keys