# Local Development

Now we can build the project and try out network replication locally. This example will show you how to launch a local [Replication Server](/1.2/coherence-sdk-for-unity/replication-server.md) and connect multiple instances of the game to it.

## Running a Replication Server locally

You can run a local Replication Server from:

*coherence > Local Replication Server > Run for Rooms / Run for Worlds*

<img src="/files/5fqMS5WcVgMXPs0GMMAD" alt="" width="563">

As with most features found in the menu, you can find local Replication Server functionality in the *coherence Hub* as well.

Open the *Replication Servers* tab and run a Room or a World Replication Server:

<img src="/files/2BWBjVRvENWtSbqUpPke" alt="" width="375">

Regardless of how you launch it, a new terminal window will open and display the running Replication Server:

<img src="/files/ewgMyNuSx6DrhBmw1f3a" alt="" width="563">

{% hint style="info" %}
Whether you run one for Rooms or for Worlds depends on [which setup you plan to use](/1.2/overview/rooms-and-worlds.md), which in turn requires the correct corresponding [Sample UI](/1.2/get-started/scene-setup/samples.md).
{% endhint %}

## Testing the Game

* [Using Player Builds](/1.2/get-started/build-and-run/local-testing-via-player-builds.md)
* [Using MPPM](/1.2/get-started/build-and-run/testing-locally.md)
* [Using ParrelSync](/1.2/get-started/build-and-run/local-testing-via-parrelsync.md)


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