> For the complete documentation index, see [llms.txt](https://docs.coherence.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.coherence.io/0.8/developer-portal/manage-worlds.md).

# Manage Worlds

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

![Managing Worlds in the Developer Portal](/files/FhdmmeUXb11OuJfOfhOH)

### Creating Worlds

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

![The New World form](/files/WEeSS3Drr7cL9heJZ2zg)

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.