Looking for a game to reverse engineer

[NoNBlack]

I'm looking for an MMO RPG to reverse engineer the network protocol and/or data files encryption/packing.
The game should abide by the following criteria:
1- MMO RPG as previously mentioned
2- English or Arabic language
3- Official server not existing anymore
4- Available client (provide a link)

 

[joebine162]

king of kings 3, its an english mmorpg that servers got shut down a long while ago, amazing game i can send you the link to client download if you interested.

 

[emporial]

How to reverse mmorpg game i would do drakensang

 

[Diobr]

Sword art online integral factor

 

[mikj1310]

darksaver