Barnwars is a two player, turn-based, tactical game. You can play using whatever method you and your friends prefer for keeping in touch; SMS, Gmail, IM, etc, they're all supported.
Players choose their team; a herd of cows or flock of sheep, and attempt to outwit their opponent. You win by stealing your opponents bail of hay, or by simply knocking out every member of the opposing team.
With a different map generated every time, no two battles are ever the same!