Vyacheslav Leontiev, better known as Buster, is a 29-year-old Russian streamer, YouTuber and entrepreneur from Moscow who turned his love of Counter-Strike into one of the biggest streaming careers in the Russian-speaking world. He created his Twitch channel in 2015 with ambitions of becoming a professional player, but it was his larger-than-life personality rather than his aim that ultimately made him famous. His energetic broadcasts, quick humor and willingness to turn every stream into an event helped him rise to the very top of Russian Twitch, earning a place on Forbes Russia's 30 Under 30 list in 2021 and making him one of the region's most influential online creators.
Today, Buster is one of the biggest names in CIS streaming, regularly drawing huge audiences for Counter-Strike, Just Chatting and watch parties around major esports tournaments. Beyond streaming, he has launched the GUN5 esports organization, organized the SLAY Streamer Awards and collaborated with many of the region's biggest creators, helping shape modern Russian streaming culture. In 2026, he became the first Russian-language Twitch streamer to surpass five million followers, another milestone in a career that has kept him at the top of the platform for years.






