Blizzard's digital collectible card game Hearthstone: Heroes of Warcraft
has entered open beta, and is now available
as a free download for Windows and Mac in North America.
Originally announced at PAX East in 2013
saw a lengthy closed beta test in advance of today's launch. Ports for iOS and Android are set to premiere later this year
is currently available only in North America, Blizzard announced
that players in other regions can expect to join the open beta "within the next few days."