Silicon Valley-based online publisher Aeria Games has launched its closed beta for free-to-play game Stone Age 2, a "relaxed MMORPG" targeted at Kids.

Set in prehistoric times, Stone Age 2 allows players to roam dungeons and deserts, decorate personal home dens, form guilds, capture cute dinosaur pets, and raise the dinosaurs to fight primeval threats. Players can duel with other gamers and their creatures by building up their team with a combination of over 200 dinosaur species.

As with Aeria's other free-to-play titles, Stone Age 2 will like feature an optional, in-game store which offers custom outfits and other goods in exchange for Aeria points, the publisher's purchasable currency for all of its free-to-play MMOGs.