> 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/2.3/manual/simulation-server/simulator-cli-arguments.md).

# Command-line arguments

{% hint style="info" %}
The following CLI flags can be specified on Unity Builds. They are read by the SDK via the [SimulatorUtility](https://unityapi.coherence.io/docs/v2.2.0/api/Coherence.SimulatorUtility.html) API.
{% endhint %}

| Flag                                     | Description                                                                                                                                             | SimulatorUtility                   |
| ---------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------- | ---------------------------------- |
| `--coherence-region <region>`            | `eu`, `us`, `usw`, `ap` or `local`.                                                                                                                     | `Region`                           |
| `--coherence-ip <ip>`                    | Specific IP to point to.                                                                                                                                | `Ip`                               |
| `--coherence-port <port>`                | Specific port to point to.                                                                                                                              | `Port`                             |
| `--coherence-room-id <room-id>`          | Specific Room to point to.                                                                                                                              | `RoomId`                           |
| `--coherence-room-tags <base64-tags>`    | A base64 enconded string containing the Room tags (space-separated). Example: `tag1 tag2 tag3`                                                          | `RoomTags`                         |
| `--coherence-room-kv-json <base64-json>` | <p>A base64 encoded string containing a JSON object literal with key-valure pairs. Example:</p><p><code>{"key1": "value1", "key2": "value2"}</code></p> | `RoomKV`                           |
| `--coherence-world-id <world-id>`        | Specific World ID to point to.                                                                                                                          | `WorldId`                          |
| `--coherence-simulation-server`          | Connect and behave as a Simulator.                                                                                                                      | `HasSimulatorCommandLineParameter` |
| `--coherence-simulator`                  | Same as `--coherence-simulation-server`.                                                                                                                | `HasSimulatorCommandLineParameter` |


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