While I was searching for a free online multi-player game I came across this. Yes, I know this is a website review and I was tempted to stick this in the game reviews section, however, this game runs in your internet browser and is not a program that you download onto your computer.
First of all, some people are going to like this game a lot...and some people are going to find it extremely boring. Basically, the game works in real time using a "tick" system. So, don't expect to be playing this game for hours at a time (especially when you first start playing).
When you first start the game you have to create your own planet and basically, the object of the game is to be the best (strongest, wealthiest...whatever you want to be) planet by making alliances, communicating with other players, and attacking your "enemies". You are able to do all your communicating through the message board and the private messaging system.
So, in conclusion, I highly recommend giving this game a chance and I bet most people (after a while and after they start to understand the game) will end up enjoying this game a a lot.