In the nineteen nineties, online games started to shift from a wide variety of LAN protocols (like IPX) and on to the online world utilizing the TCP/IP protocol. Doom popularized the strategy of the deathmatch, wherever many players struggle each other head-to-head, as a completely new form of online game. http://atlantabackflowtesting.com/UserProfile/tabid/43/userId/709409/Default.aspx