File: Kerbal.space.program.v1.11.1.03066.zip ... Access

: Everything is unlocked. Best for testing crazy designs. Science : Unlock parts by performing experiments. Career : Manage funds, reputation, and science. 4. Version 1.11.1 Highlights

: Engineers can now repair broken parts (like solar panels or landing legs) in the field. 5. Troubleshooting File: Kerbal.Space.Program.v1.11.1.03066.zip ...

Since the file is a .zip archive, you do not need to "install" it in the traditional sense. It is a portable version of the game. : Everything is unlocked

: KSP_x64.exe (Recommended for 64-bit systems) or KSP.exe . macOS : KSP.app . Double-click the file to start the game. 3. Essential First Steps (In-Game) File: Kerbal.Space.Program.v1.11.1.03066.zip ...

: If the game fails to launch, ensure you have the DirectX End-User Runtimes and Visual C++ Redistributables installed.