It is already clear that Crysis 2 will support PC - Games for windows Live. The real problem is that it can not compete with Steam services. For unknown reasons, Windows Live is continuing its miserable existence - The developer chooses that shines brighter.
Let's ask the players what service is more convenient for them.
Please comment and voting only PC-users.


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I'd add:
Voted for Steam. Games for windows Live as a service from itself represents nothing.