Uses and supports 128 bit address space and protocol of the IPv4's successor. Noticeably IP addresses use square brackets surrounded hexadecimal numbers separated by colons.
The first video game about IPv6 was released on November 22, 2004.
Blizzard has published all these games
Due to the nature of IPv6 addresses, using DNS is much preferred. Easiest option for everyday users with this is to sign up for free dynamic DNS account as long as the game supports DNS lookup.