> <i>GOG: Requires approval</i><p>That's actually a plus for both users and developers. GOG have high acceptance bar usually quality wise, so it makes each release more notable (i.e. they try to avoid the flood of low quality releases which no one can keep track of). So if you pass the bar - you are likely to get some attention, while on Steam your release can be simply lost in the noise.
GOG Galaxy is going to be a big deal. I think a lot of people underestimate the appeal of automatic updates, easy installs, etc.<p>Desura has a client too, but last time I checked it was terribly clunky to use.