Install and activate

From the installer to an open workspace: install, activate, and find your way around.

Install

KnownX MPT runs on 64-bit Windows 10 or 11. Nothing else needs to be installed first. See System requirements.

Get the current version from the download page. There are two ways to install it:

Installer. Run KnownX-MPT-<version>-win64-setup.exe. It installs to Program Files\KnownX MPT and adds a Start menu entry.
Portable. Unzip KnownX-MPT-<version>-win64-portable.zip to any folder and run KnownX.exe.

Activate

The first time KnownX MPT starts it asks for your licence key. The key looks like KNX-XXXXX-XXXXX-XXXXX-XXXXX and was emailed to you.

Enter the key.
Choose Activate.

Activation uses one of your licence’s seats for this computer. After that, KnownX MPT confirms its licence by itself each time it starts. Without a connection it keeps working for up to a week.

Situation	What to do
All seats are in use	On a computer that no longer needs it, open the launcher, choose Licence…, then Deactivate this computer. You can also free a seat from your customer account.
This computer has no internet connection	On the activation page choose This computer has no internet connection. Send the computer ID shown to KNOWN Corporation, then load the licence file you receive with Load a licence file….
The key is lost	Sign in to your customer account and choose Replace the licence key.

The Mission Launcher

KnownX MPT opens on the Mission Launcher.

Item	What it does
Scenario Templates	Ready-made missions. Pick one and launch it.
Open scenario (`Ctrl`+`O`)	Loads a scenario you saved earlier.
New scenario (`Ctrl`+`N`)	Opens the Scenario Composer on a blank mission.
Validation	Opens the Validation Center.
`F1`	Shows the built-in shortcut and help page.
Recent Missions	The scenarios you launched last.

The workspace

Launching a scenario opens the workspace: the 3D view in the middle, the System Bar across the top, and tool windows around it. Open or close windows from the Windows menu in the System Bar.

Window	Use it for
Universe Explorer	Every object in the scenario. Click one to select it.
Inspector	Position, velocity, orbit, forces, active models and vehicle controls of the selection.
Trajectory Map	A 2D view of orbits and predicted paths, with closest-approach markers.
Mission Sequence	The scripted plan: timed attitude, engine and throttle steps.
Mission Timeline	The sequence as it runs.
Plots	Live telemetry charts, with recording and CSV export.
Event Log	Everything that happened in this run.
Mission Companion	The built-in assistant. See Mission Companion.

The System Bar shows a status badge for each physics model: VAL for validated, DEV for implemented. See Capabilities and status.

Controls

Key or mouse	Action
Left-drag	Rotate the camera around the target
Scroll wheel	Zoom
`C`	Cycle camera mode
`1` to `6`	Fixed views: top, left, right, bottom, front, back
`Tab`	Switch camera target
`P`	Pause or resume
`=` / `-`	Double or halve the time rate
`V`	Show or hide trajectory prediction
`J`	Turn the Earth zonal terms on or off
`F`	Reset the current run
`W` / `S`	Throttle up / down
`X`	Cut throttle
`T`	Toggle the engine
`Space` (hold)	Fire the engine while held
Arrow keys	Pitch and yaw
`Q` / `E`	Roll

Continue with the first tutorial, Fly your first orbit.