hytopia/docs/server.worldmanager.createworld.md

The HYTOPIA SDK makes it easy for developers to create massively multiplayer games using JavaScript or TypeScript.

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[Home](./index.md) &gt; [server](./server.md) &gt; [WorldManager](./server.worldmanager.md) &gt; [createWorld](./server.worldmanager.createworld.md)

## WorldManager.createWorld() method

Creates and starts a new world with a unique ID.

Use for: additional game rooms, arenas, or isolated simulations. Do NOT use for: deferred world creation without starting; this always starts.

**Signature:**

```typescript
createWorld(options: Omit<WorldOptions, 'id'>): World;
```

## Parameters

<table><thead><tr><th>

Parameter


</th><th>

Type


</th><th>

Description


</th></tr></thead>
<tbody><tr><td>

options


</td><td>

Omit&lt;[WorldOptions](./server.worldoptions.md)<!-- -->, 'id'&gt;


</td><td>

The options for the world (ID is assigned automatically).


</td></tr>
</tbody></table>
**Returns:**

[World](./server.world.md)

The created world.

\*\*Side effects:\*\* Starts the world's tick loop and emits `WorldManagerEvent.WORLD_CREATED`<!-- -->.

## Remarks

Auto-starts the world after creation.