Gameforge and NCsoft have issued a call to their community asking for testers to download the English test client for Aion 3.0.
Aion 3.0 is to be a large update, featuring an increased level cap, two new territories and six new instances. There are also new features such as the new housing system and mounts. All of this new stuff needs to be thoroughly tested and they need your help to do it.
If you're interested in participating, you can download everything you'll need right here.