> 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/0.7.4/developer-portal/configure-rooms.md).

# Configure Rooms

![Configuring rooms in the Developer Portal](/files/yhmOEl9lmS4ina9fDOIY)

From the left sidebar, select 'Rooms'. On this page you can:

* choose the regions you want to allow your rooms to be created in
* enable Simulators for your Rooms
* view a list of recently created Rooms

### Simulators

From the Developer Portal, you can configure what size you want your simulator instances to be. To attach a simulator to a Room, send the \`simulator slug\` uploaded through the SDK with the Rooms creation request. When using the [PlayResolver](/0.7.4/api-reference/network-sdk/rooms.md#rooms-api) to create rooms, the simulator uploaded through the SDK is automatically assigned in the creation request. 


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