Since its original release , `` DotA '' has become a feature at several worldwide tournaments , including Blizzard Entertainment 's BlizzCon and the Asian World Cyber Games , as well as the Cyberathlete Amateur and CyberEvolution leagues ; in a 2008 article of video game industry website Gamasutra , the article 's author claimed that `` DotA '' was probably `` the most popular and most-discussed free , non-supported game mod in the world '' .
Since its original release , `` DotA '' has become a feature at several worldwide tournaments , including Blizzard Entertainment 's BlizzCon and the Asian World Cyber Games , as well as the Cyberathlete Amateur and CyberEvolution leagues ; Gamasutra declared that `` DotA '' was perhaps the most popular `` free , non-supported game mod in the world '' .