Apparently Brink did quite well.
Source: http://www.gamasutra.com/view/news/...ves_Freetoplay_publishing_backend_support.phpGamasutra said:"With Splash Damage, we finished Brink, and it's estimated to have sold more than 2.5 million units worldwide, which at retail would mean that it's generated around $120-140 million in revenue," explains Wedgwood.
"But of course, as an independent video game developer, we don't earn that kind of revenue, as we're not the publisher of the title... but we could see there was the potential to serve our fans content directly, and while we don't want to take anything away from what Splash Damage does, we wanted a vehicle that we can dedicate exclusively to that pursuit."