IceFrog watching Na`Vi practice in Valve office ?! @ The International 2
The History of Icefrog - Designer of DotA
DOTA 2 ICEFROG'S IDENTITY REVEALED
Who is IceFrog? | DotA
IceFrog Summoning Ritual by Kittyking101
IceFrog is a pseudonymous video game designer, known for being the longest-serving designer of Defense of the Ancients (DotA), a custom Warcraft III: Reign of Chaos mod - and as the lead designer for the stand-alone sequel, Dota 2.