I haven't see any option to import non Gog games, am I right?

I don't know all the technical details but I really wonder why all those clients are closed to each other. It's a non sense, I have easily 4 clients just on Mac and with windows I could add few more.

I fully understand the privacy and security requirements, but for the playing profile it's total non sense, even more with a client like Galaxy that don't bother on specific DRM. I also underdstand that Gog game database is relatively small, but playing profile could let user custom setup or even users shared database, I mean for games names and icon in library and player profile.

Wrong ;)

See this excellent manual for it from Mike

http://www.gog.com/forum/general/adding_external_games_to_galaxy

EDIT sorry only for GOG games, but IIRC you can do it as well for other games ....

Sort of wrong. There is no built in option, but there is a rather hacky way to make it happen in that thread.

Actually you can, but keep in mind Galaxy will not count time spent in non GoG game.

You got it's the main point otherwise why bother launch the game through gog? So I confirm it's not possible to add non gog game.

The truth is it's time to have an open source used as a single front end for all those clients.

It does count it, but it doesn't display it until a game with the ID you gave it is added to Galaxy.
At least that is what Evil Islands seem to indicate for me, though I'll have to check it again in a few weeks with another game.

One possible upside may come from the issue that in some newer versions of Windows (like Win 8), it's become a huge pain in the ass to actually find all the shortcuts related to a game (configuration, manuals, etc.). Since you can run installed GOG games in Galaxy without having to log in, you can simply use it as kind of a central hub/launcher for them.

Well it won't change that it's far to offer a single front end. Both Steam and Gog client and all other similar clients I know are quite crap launchers, the possibilities of organization are very basic, the idea of a play profile is good far past barriers of Gog/Steam. I quote just 2 of them but I have probably 5 launchers on Mac.

I have no clients for any system, this is the one single reason why I buy games from GOG is that the client is not needed. There will never be one client to rule them all, the simple fact of the matter is that clients are there to control you, and your access to your products, and as such no company will rescind control of what is theirs, nor will they necessarily allow access to their DRM systems to allow cross functionality other than at a basic level such as crossplay. The way things are going, every single company around the world will have their own client system, so if you are happy to use them, I would get used to it, me I am sticking to those products not needing them.

Obligatory

Lol, too true.

Cool, that's getting printed :o)

Me myself, I just create custom shortcuts in my Games folder/tab/menu for games that don't make proper shortcuts when installing. Then again I'm primarily on Linux, so I'm accustomed to doing things of this sort.

I don't use it myself, but the thing closest to what you describe of which I know is LaunchBox. Unfortunately at this time it appears to be Windows only.

That is extremely relevant, though when a market leader does this it can lead to things like this:
https://en.wikipedia.org/wiki/Embrace,_extend_and_extinguish
[url=https://webcache.googleusercontent.com/search?q=cache:YLGL5hHvLuQJ:www.zdnet.com/article/embrace-extend-extinguish-how-google-crushed-and-abandoned-the-rss-industry/+&cd=5&hl=en&ct=clnk&gl=us]https://webcache.googleusercontent.com/search?q=cache:YLGL5hHvLuQJ:www.zdnet.com/article/embrace-extend-extinguish-how-google-crushed-and-abandoned-the-rss-industry/+&cd=5&hl=en&ct=clnk&gl=us[/url]
http://www.appleoutsider.com/2011/01/14/e3/
http://www.itbusinessedge.com/blogs/unfiltered-opinion/ballmer-and-android-on-windows-the-return-of-embrace-extend-extinguish.html

You are forced to limit your games choices because of that, your own solution isn't a true solution.

The key point isn't really multiple client it's I'm pretty sure many players would love have a ww-last-vgame (www.last.fm) the only players satisfied with current situation are those that choose limit their choices to a single shop client, even for Steam that have ton of games it's a weird solution.

It's a long road to reach the goal but it's not necessary impossible.
www.last.fm

I don't use it and won't use it but that could be the first step.

Gamers are a power and even more in indie market, that means that the back doors could come from the games themselves, Launchbox achievements simple library easy to add to any game and parralel to any Gog/Steam system I mean indie game supporting both, play time controls is probably already in Launchbox, at first game identification are responsibility of players, then Launchbox could get agreement of certificates from smaller shops and launchbox can show library and games with certificate from a shop. Eventually GamerGate and even Gog will happy to follow and when Steam will be isolated with more and more players complaining the lack of Launchbox support, Steam will give up.

The point isn't to remove the front end shops and later steps will be to even offer some integration in Launchbox, and at end Steam will finish buy pub corners to Launchbox. :-)