Blizzard announces closed beta testing is now underway in the Americas and Europe as planned for Heroes of the Storm, their MOBA once known by the title Blizzard All-Stars, saying testing should be underway in all territories at some point today. Those interested in participating can still register on the Heroes of the Storm website or through the Beta Profile Settings page for their Battle.net accounts. These Closed Beta Patch Notes outline the changes for the beta, and this video offers a walkthrough.