You only need ONE phone to play this RTS game against your friends. Mine gold, build an army and show that you are the general among your group.
If you like the gameplay, but want better graphics - check out the new 3D version "2 Player RTS Game 3D" !
Here's the link https://play.google.com/store/apps/details?id=com.Opscury.TwoPlayerRTSGamePremium