Shadowrun....
It kinda got panned by reviewers ,has a very indepth multiplayer thats very diff from whats out there. Imo i enjoy this game on the same level , what will happen is once the hype (good or bad) finally dies out. It will have a following of faithfull players and i feel that it will have enough players for the long run. I played shadow run for years just to have a diff taste in my shooter fix , and the same will be for brink. Dont really try to compare it to cod,bf bc,halo because they are completly diff games.