This game seems like a lot of fun, but i was only playing on singleplayer. I got my friend to download it so we could play together, but the multiplayer said "Create a Username or Login to start Multiplayer." I dont know if this problem has happened before. I tried loging in on my phone and on my mac. I searched the website for anything related to this, but i found nothing. If you could help me figure this out i would appreciate it, Thanks.