> 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/0.5.2/developer-portal/replicator-and-simulator-configuration.md).

# Replicator and Simulator Configuration

### Choosing Regions

Click one or more regions you would like to run your replication and simulation services in, and click 'Save Regions'.

![](/files/-Me5lGQDs6pBSpkNMXqK)

### Size your Replicator

Click a replicator size best suited for the needs of your game and click the 'Save Sizing' button.

![](/files/-Me5lTwV8kky4mrD-VjF)

### Enable and Size the Simulator

To enable the simulator, ensure that the 'Enabled' check box is checked. Choose a simulator size based on the needs of your game. 

![](/files/-Me5lZPGe-GY0hm3PdUd)

![](/files/-Me5lg2nbp2pw-o6Twu5)