In order to play you just need to register a new account.

Calypso Universe is a browser based multiplayer game, it's similar to Ogame but faster and with more features. Playing consists of colonising planets, extracting resources with mines, developing technology, building fleet and defence, forming alliances and attacking players to steal their resources and destroy their empire. It's up to you, if you want to be villain you can be, but you also can be a diplomat befriending everyone. Main goal of the game is to have the biggest empire in the galaxy and it doesn't matter how you get it.