Additionally, pressing Alt-F5 will allow you to save the game with a name, and Alt-F9 will allow you to choose a quicksave to load.

WARNING: incautious loading if you haven't saved for a while can wipe out hours of work! Later, holding F9 will return you to this save.

The F5 button quicksaves the game! So long as you are not about to crash, your thrust is set to 0, and you are not in atmosphere (unless you've landed), you can create a savepoint.

Solid-fuel boosters can be throttled with the thrust limiter using the right-click menu to adjust the burn time and thrust-to-weight ratio.

You can tweak the amount of fuel in fuel tanks at launch while building, as well as extend/retract landing struts and turn lamps on and off by using the right-click menu.

If you're building something that you wish to use in a sub-assembly (like a lander or satellite which you want to attach to a different rocket) start with a docking port, not the craft's main command capsule or probe core! This allows you to select everything from that point on which makes up the actual craft and save it as an assembly without getting stuck with the root part - alternatively, save an entire craft as a sub-assembly by shift-clicking any part of the ship to select it all, and save that.This is useful for grouping all your 'science-collection' to one button, or for single button extend/retract all of your solar panels, or maybe you would like your Ladders to extend too when you press G for your landing gear. Click on a the action group you want to add something to, then click on the part, and the menu will show all the part's functionality which you could use. The action group menu lets you add all kinds of functionality to the buttons 0-9, to the 'abort' button (typically bound to Delete or Backspace), to the lights button, to the landing-gear button, etc.X increases build symmetry number, and shift-X decreases it - C and Shift-C quickly toggle angle snap.

If a part has become turned and twisted in a way you don't want, hitting the Spacebar while you have it selected will return it to default orientation.Note: this will never go the direction you want it to go first time. You can turn parts 90 degrees with QWEASD, and make precise adjustments with Shift-QWEASD: this turn the part 5 degrees, so press shift- 9 times to rotate the part 45 degrees in that direction.

Ctrl-Z can undo the last change you made to your craft, though be aware: it often undoes the 2 most recent changes.Holding shift while moving the mouse wheel zooms you view in and out, rather than moving up and down.Shift-clicking any part of the ship will select the entire ship for movement, while Alt-clicking copies that particular part and everything attached to it.I've deleted a few that aren't true of the latest version and added a couple. I am always on the lookout for obscure features, and I found an excellent list online that can be used to start a list here. Kerbal Space Program is a great game, but it is poorly documented.

Kerbal space program walkthrough career