# Integrate games with Colyseus

In this documentation we will see how to integrate games in a secure way using the [Colyseus](https://www.colyseus.io/) open source server. 

The aim is to integrate games with [OP Arcade](https://alpha.outplay.games/) and make them tournament ready.

{% hint style="info" %}
OP Arcade uses Colyseus in tournament mode to prevent the player from cheating and getting a higher score in the leaderboard
{% endhint %}

At present, Leaderboards are populated and shown for Tournament-enabled games. 

<div align="right"><img src="https://2106246176-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FAal11zmTbHWEnDONeJej%2Fuploads%2FBr7uJcyiSn75VD1hA846%2FScreenshot%202022-04-07%20at%2017.32.29.png?alt=media&#x26;token=02ebd378-16a2-4ab3-ac85-2bb76f671c97" alt="Leaderboard Example on OP Arcade"></div>

To prevent player cheating, we must ensure that critical gameplay and score submission and computation is done on a remote server and not on player devices.

![Unsecured game all handled in the front end of the application, easy to cheat.](https://2106246176-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FAal11zmTbHWEnDONeJej%2Fuploads%2FKC2gGPOGvrdNGKWVfaAm%2FScreen%20Shot%202022-01-03%20at%202.28.24%20PM.png?alt=media\&token=e6f045a5-930e-406a-b74c-d14649f7b133) ![Game Logic has been moved to the server](https://2106246176-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FAal11zmTbHWEnDONeJej%2Fuploads%2FrMDXPL6yjfJdpqf4GC2w%2FScreen%20Shot%202022-01-03%20at%202.30.13%20PM.png?alt=media\&token=789f5a17-4a8c-470b-bd57-bc84800af2c8)

To this end, [Colyseus](https://www.colyseus.io/) game server technology was selected as a mature, stable, documented, and open source platform.