What makes it hard: systems — knowing how it works.
How hard is Kerbal Space Program?
What makes it hard: systems — knowing how it works. You get through it by working out what the game is actually doing and coming back with a better build or a better plan, not by faster hands.
Finishing it
Kerbal Space Program has an ending, but nothing in its achievement list marks it clearly enough to trust — so there's no finish rate to show.
Rarest achievements
Published rarity by platform.
Xbox
The View From Up HereCongratulations! You completed your first flyby of Kerbin.0.0%
Vall HaulerCongratulations! You completed your first mission to Vall.0.0%
Failure is Not an OptionCongratulations! You've completed your first landing on Moho!0.0%
Kerboy BeBopCongratulations! You completed your first mission to Bop.0.0%
Got My Moho BackCongratulations! You completed your first mission to Moho.0.0%
Played Kerbal Space Program? See how many of these you've got.
- Which ones you've earned — and which you're missing
- Your rarest unlock, and where it ranks
- Your whole history for this game, on one timeline
- Steam, PlayStation, Xbox and Battle.net in one place
Free. Takes about a minute.
About Kerbal Space Program
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.
How rarity is calculated
Each platform calculates rarity from its own player population. These percentages are shown side by side but are not a controlled comparison.
- Xbox — Microsoft's published rarity percentage across Xbox players.
Percentages are shown exactly as each platform publishes them. Pyroblast does not recalculate them and does not mix player populations together. Data updated .