# 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/v2.1.0/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` |


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.coherence.io/manual/simulation-server/simulator-cli-arguments.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.