Use Build Mode

Build mode is where you turn a template or empty scene into a playable place. The most reliable workflow is simple: place one thing, position it, configure it, then test it before moving on.

Place an item

1. Open the Items area in the creator rail.
2. Choose the item you want to add.
3. Place it in the scene where players can reach or see it.
4. Select it again if you need to change its settings.

For a first test, place one item near your intended spawn point. It is easier to tell whether it works when you do not have to search a large scene for it.

Move and shape an item

Use the active transform tool for the job:

• Grab — select or handle the item in the scene.
• Move — change where it sits.
• 3D Rotate — turn it to face the right direction.
• Scale — make it larger or smaller.

After moving a collision-sensitive object such as a wall, doorway, or platform, walk around it as a player. A model can look correct from the editor camera while still blocking or confusing a player.

Configure the selected item

Many items expose their own settings after placement. A portal needs a destination; a spawn point needs a purposeful location; a trigger needs the behavior it should activate. Configure the item before you duplicate it, so later copies start from a known-good setup.

For a resizable shape or a standard imported model, start with Item Settings. It explains which settings belong to a shape, which belong to a GLB, and when persistent physics is appropriate.

Build with player scale in mind

• Place signs and interactable objects where an avatar can see them.
• Leave enough room around the player start to move immediately.
• Avoid hiding the only route behind decorative geometry.
• Put a visible landmark in the player’s first view.

Test often

Switch out of building and try the route as a player after each meaningful change. If you add a trigger area, cross into it from outside; loading inside the area is not the same as entering it.

For a focused first pass, follow First-game checklist.