According to Nettention, ProudNet has been applied to 191 game projects and among them we can find titles such as Mabinogi Heroes, Seven Knights and Street Fighter V. Also, the ProudNet live servers are operated in 13 countries around the world. Black Desert is definitely the main "beneficiary" of this new technology, as well as the upcoming mobile version of Black Desert.
http://2p.com/50109749_1/Pearl-Abyss-Acquires-Nettention-a-Game-Network-Developer-by-MMORPGmaster.htm
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My SWTOR referral link for those wanting to give the game a try. (Newbies get a welcome package while returning players get a few account upgrades to help with their preferred status.)
https://www.ashesofcreation.com/ref/Callaron/