Stone Age 2, the newest MMORPG from Aeria Games, has finally entered closed beta. Looking much like a cross between pokèmon and prehistory, the game has the players, represented by cavemen, taming and training prehistoric pets to do their bidding. After capturing pets, they can then use then to either battle and capture other wild pets or enter them in competitions and tournaments. You can sign up for the beta over on the official site, and download the closed beta client from Big Download once you are in the beta!