# Manage Worlds

{% hint style="info" %}
At least one **schema** must be uploaded to create a world. To **create a schema**, see [Schema Reference](https://docs.coherence.io/0.8/schema-reference).
{% endhint %}

![Managing Worlds in the Developer Portal](https://3580906557-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FUrQ8GJkdHxImzMEWuxaz%2Fuploads%2Fgit-blob-90c6a660352c40375195149ba917c1b6d3898eba%2FManage%20worlds.png?alt=media)

### Creating Worlds

Click the 'New World' button at the top right of the Worlds view in the Developer Portal

![The New World form](https://3580906557-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FUrQ8GJkdHxImzMEWuxaz%2Fuploads%2Fgit-blob-b5736c512cf336f35576ecb53d2286874559a6a9%2FCreate%20World.png?alt=media)

To create a world:

* Enter a unique name
* (optional) choose an SDK version. The latest version is recommended, but this should match the SDK version installed for your project
* Enter tags separated by commas
* Choose which region the World should be started in
* Choose the size of the replicator
* (optional) Choose the schema this World should start with. Usually the latest schema uploaded is the preferred choice, and this is the default.