The CBT were locked to Korean IPs and accounts, and it's likely the open beta will also be that way. Rulke is correct in that you'd need an account and then a Korean VPN that you have to stay connected to or the game will disconnect. There's been talk of a google translated patch, but I didn't see anything like that in any streams or fan sites so far. They want to bring this out of Korea, but no timeline. That said, it's not particularly hard to get an account, once open beta comes around, as there are sites that sell them, but the VPN would also be required. When I played KTERA, I paid a site for an account, but never had to deal with VPN back then, and I didn't know any Korean, yet was still able to make my way through the game.