grew even larger after the release of the expansion pack StarCraft: Brood War. Concurrent player counts and games played reached the tens of thousands. This was especially evident in South Korea where StarCraft became a runaway hit and concurrent player counts on would often be many times what they were in the United States. StarCraft also brought with it a new copyright protection scheme using CD keys. Under Diablo, would allow anyone who had a copy of the game to connect to the service. This allowed people who pirated the game to play on. With StarCraft, only those players who had a valid CD key were allowed onto the service.
A StarCraft CD key is a generated 13-digit number that could either be muted (unable to chat), voided (restricted to channel 'The Void'), banned (disabled usage), or usually working (no restrictions). In addition, only one person can be connected to service using a specific CD key at a time. Every Blizzard game since StarCraft has required a unique, valid CD key to connect to (excluding StarCraft: Brood War). A new version of launched on March 19, 2009.With the release of the Gateway system in Brood War, two players can play at the same time, as long as they are on different gateways, though they cannot play in the same game, chat with each other, etc. A preview page was opened in February 2010. Jay Wilson said the new version of should come out with StarCraft II.The project director of the new is Greg Canessa.The service became available for StarCraft II beta that month. Cross-region play will not be supported at first.Frank Pearce said they probably won't be able to implement all plans by the time StarCraft II launches, but they can add more features to "as we go".