I was interested in your game, I played Galaxy PBEM some time ago, but you have few flaws:
1. You assume that everybody played board game, which I haven't, so you don't have an easy introduction for a new player.
2. You have single player game, but you set up a high barrier to try it, I don't understand why you need logging in when a cookie will be enough.
1. We do have a pretty straightforward tutorial. Http://victorsunited.com/help/tutorial
2. We are working on a way to bypass the login/registration requirement for single player games. To be honest, the Singleplayer mode was something of an afterthought, and the SP experience isn't yet as polished as it should be.