Neosaurs is a free to play massively multiplayer RPG (MMORPG) adventure that you can play, right here in your browser! You can start playing right away with your existing Facebook or Windows Live account. Deep below Earth's surface, Inner Earth is in trouble and needs your help! Raise your very own Neosaur to be protector for the forces of good. Play with your friends and explore the extensive lore and endless adventure in the magical land beneath. You can evolve your Neosaur into a ferocious Rex, strong Cera, or agile Ptera.