Last year, many large EA-published titles including Crysis 2 and Dragon Age 2 were inexplicably removed from Steam. After some inquiries into the problem, EA revealed that it had a problem with Valve’s terms of service that restricts content provider’s ability to provide patches and content.

However, when Sims 3 ended up appearing on Steam, it appeared that EA and Valve had come to some sort of agreement to allow EA games to show up on Steam.

Apparently, this isn’t the case.

In a Q&A about Origin and Mass Effect 3, Bioware Community Coordinator Chrs Priestly revealed that, for now, Mass Effect 3 would not be coming to Steam, for the same concerns that EA has had before:

During initial release Mass Effect 3 will be available on Origin and a number of other 3rd party digital retailers, but not on Steam at this time. Steam has adopted a set of restrictive terms of service which limit how developers interact with customers to deliver patches and other downloadable content.  We are intent on providing Mass Effect to players with the best possible experience no matter where they purchase or play their game, and are happy to partner with any download service that does not restrict our ability to connect directly with our consumers.

We can only hope that EA and Valve pull another Sims 3 to have Mass Effect 3 up on Steam.