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This page is an overview of the user interface (UI) in Universe Sandbox. It is meant to describe the general purposes of different parts of the UI and help in finding different settings and controls.

The UI in Universe Sandbox changes often with updates, so not everything may be exactly as it appears in the latest version.

User Interface Overview.png

Home[edit | edit source]

New[edit | edit source]

Create a new, blank simulation.

This is the first step in building a simulation from scratch. See Getting Started for more information.

Save & Share[edit | edit source]

Save the current simulation as a custom simulation, or share on Steam Workshop. Saved simulations can be found in Home > Open > My Sims.

Open[edit | edit source]

Browse a list of included simulations.

Settings[edit | edit source]

Adjust general game settings, like Graphics settings, Audio settings, and Performance Settings. These settings are global and will persist when a new simulation is loaded. For simulation-specific settings, see View Settings and Sim Settings below.

Guides[edit | edit source]

Browse a list of guided simulations.

Exit[edit | edit source]

Close Universe Sandbox.

Workshop[edit | edit source]

Browse simulations created by other users on the Steam Workshop.

Bottom Bar[edit | edit source]

Play/Pause Button[edit | edit source]

Pause a running simulation or a play a paused simulation. This can also be controlled with the Spacebar on a keyboard.

Date and Time[edit | edit source]

This displays the current date and time in the simulation. When clicked, it opens the Time Zone setting.

Timer[edit | edit source]

Allows the user to run the simulation until a certain time or date, at which point the simulation will pause or change its Time Step.

Step[edit | edit source]

The Step menu contains additional time step settings and controls, including the Target Time Step, and the Advance One Time Step, Reload Simulation, and Pause on Collide controls.

Time Step[edit | edit source]

Displays the simulation Time Step, which can be adjusted using the slider or by entering a value in the text box with the keyboard.

Edit[edit | edit source]

Allows the user to adjust the position, rotation, and velocity of a selected object or objects.

Add[edit | edit source]

Adds a new object to the simulation.

Tools[edit | edit source]

Provides access to several tools for manipulating the simulation:

  • More
  • Fly
    • Sends the camera to the selected object
  • Explode
    • Explodes the selected object, creating a supernova if the object is a star.
  • Delete
    • Removes the selected object from the simulation.
  • Force
    • Applies a cone-shaped force extending from the cursor's position.
  • Pulse
    • Launches a ring of particles from the position of the selected object.
  • Fireworks
    • Launches fireworks from the selected object.
  • Material
    • Launches a stream of particles from the cursor, made up of a given material.
  • Laser
    • Fires a laser from the cursor, forward from the camera.
  • Launch
    • Adds a body to the simulation with the Launch setting.

Chart[edit | edit source]

Rearranges the objects in the simulation to be ordered according to size or mass.

View[edit | edit source]

These settings affect only the currently opened simulation.

Sim[edit | edit source]

These settings affect only the currently opened simulation.

  • Settings
  • Collide
    • Toggles whether or not objects collide. If turned off, objects will pass through each other instead of colliding.
  • Fragment
    • Toggles creation of fragments, which can be caused by collisions, Roche limit fragmentation, and friction fragmentation from explosions. Also toggles creation of volatiles from extreme heats and solar winds.
  • Gravity
  • Heating

Stats[edit | edit source]

Displays statistics about the currently opened simulation:

  • Object Count
    • The total number of objects in the simulation
  • Simulated
    • The number of objects being actively simulated
  • Non-Simulated
    • The number of suspended objects not being actively simulated
  • Attracting
  • Non-Attracting
    • The number of objects not exerting a gravitational force
  • Decals
    • The number of impact decals used in the simulation
  • Star Count
    • The number of Star objects in the simulation
  • Mass
    • The total mass of all objects in the simulation
  • Velocity
    • The magnitude of the sum of the Velocity Vectors of all objects in the simulation
  • Momentum
    • The magnitude of the sum of the Momentum Vectors of all objects in the simulation
  • Mass Lost
    • The total amount of mass lost to the simulator during the simulation
  • Momentum Lost
    • The total amount of momentum lost to the simulator during the simulation

Search[edit | edit source]

Displays all objects in the currently opened simulation. Clicking one of the objects in the Search menu will focus the camera on that object.

Objects are sorted into tabs according to their object types, including Stars, Planets, Moons, Minor, Misc, Galaxies, and Black Holes. There is a text box for searching all simulation objects by name.

Video[edit | edit source]

Tools and settings for capturing video.

Photo[edit | edit source]

Tools and settings for taking screenshots.

Object Properties Panel[edit | edit source]

Right-clicking an object in the simulation will open the object's properties panel, which will include one or more tabs displaying properties specific to that object. These tabs can include:

At the top of the properties panel, the object's View Panel may display a preview of the object, a cutaway diagram of the object's composition, and the object's surface properties, if available.