What would it takes for GOG to win against Steam ?

I've used GoG over steam for years. DRM Free, better holiday sales, old games that actually work right, a consumer-friendly refund policy that existed long before yesterday. GoG has held me in and I'll only let go when a better digital distributor steps up.

Well here's how I view the GOG Galaxy client -- it has everything great Steam has to offer (all your games in one convenient place for easy installing/uninstalling/playing, achievements, trading cards, online play and chatting with friends while in-game) I don't see that as being too Steamy, rather taking a great idea and improving on it by making it have what Steam sorely needs -- the offline mode is MUCH easier to use since no game requires it, and not plaguing customers with DRM is a vast improvement over Steam any day (though I too like Steam and have a large library there, it could be better in the offline and DRM-free areas).

The problems with GOG are 1) as other people already said, their lack of a huge library and AAA games, and 2) their customer base is a lot smaller than Steam's. What I wish is that GOG would grow massively in customer base and how many games they have to offer, though I'm not sure how that would happen, and while I hope not putting Steam out of business, rather make them realize that DRM only causes more trouble than it helps (it damages software and just makes the lives of honest law-abiding gamers harder while making pirates all the more determined to crack the games in question, thus actually encouraging people to be digital criminals) and that there shouldn't be such reliance on being online to play most of the games in your library. However with any big change comes risk, so who knows what will happen there.

"What would it takes for GOG to win against Steam ?" - only way to compete with Steam is selling CoDs, GTAs and AssCreeds. All of them have DRM. So either GOG has to stop being DRMfree (and then it will die) or they can't hope to win against Steam.
Unless something would change with publishers, who would suddenly went DRM-free.

GOG offer many old games that run perfectly on modern PCs, usually old games on STEAM sucks, and when not suck the STEAM version of the old game is the same version from GOG. In this aspect STEAM cant compite against GOG. I cant imagine STEAM releasing games like TITUS the fox, Blues Bros, etc but recently GOG launch the clasic game PREHISTORIK 1+2 <3.

On other hand, Steam and GOG sell new games, in this other aspect GOG is pretty solid (an now they are working to improved Galaxy Client) but still Valve have year of experience and STEAM have a lot of features that make STEAM superior to GOG (for now).

They need to convince large publishers, who use more and more invasive DRM schemes, to go DRM-free. Good luck with that.

Publishers are in no way obligated to use any form of DRM on Steam, yet the percentage of DRM-free titles in quite low.

Good system, profile, achievement like Steam.
have all of the games for PC.
big sales, like steam sales.

But probably kinda late, Steam already big and have the hugest community.
Maybe by buying shotgun and shoot Steam in the head.

Another solution is Steam, GoG, Origin merge and become one.

So long as Steam still exists, it wouldn't be possible to overtake them. They have too much of a headstart and far too much marketshare. Plus, people already have a lot invested in their Steam accounts. GoG's best bet is to continue doing what has worked for them in the past: pound that niche; DRM-free games & functional classic games. Having top-notch discounts of newer games would help to get people to invest in their GoG accounts (financially and emotionally).

But quite honestly, everybody is merely fighting for second place, although I'm not terribly sure who's currently winning that battle, or what metric to even use.

More time and more publishers and polish the GoG Galaxy

Answer is simple. They need demigod greater than our Lord and saviour, Gaben.
DRM alone won't win this war as we are paying consumers, not pirates.
Neither exclusive DLCS. Price is what matters and ability to provide good service which customers value.
At this point steam is essentially social media platform and instant messenger combined without the burden of having to represent yourself with your own name. Vast majority of people like this. I for one wouldn't write anything online under my own name about games I'm playing, guild stuff and do forth for there's a small chance it could come and bite back later on. Even when there's nothing questionable about what I'm writing. Perhaps my writing simply could make me seem unprofessional, or as if I'd have life outside work :o

GOGOS. No, seriously. Galaxy+Origin+Desura+Playfire+whatever < Steam

gog controller
gog cards
gog market
gog machine
gog player
gog greenlight
gog gaben

View attached image.

Wider adoption (bundles and such) and they would have to give me a copy of every game in my Steam library, or at least the majority. It's too valuable to me to have (nearly) everything in one system.

Or integration between the two libraries. If GOG Galaxy accessed/tracked/installed my Steam games for me I would happily buy from both.

Servers.

Seeing as how GOG exists for me simply as "that place I got Dungeon Keeper 2 from" and nothing else, I really don't see your point. :P

Actually, I generally don't see what is people's problem with Steam as a DRM. It's not particularly intrusive (unlike, say- UPlay) and offers many experience enhancing features. Other than old games that can't be found in any other stores, what does GOG have over Steam? (In fact, doesn't GOG stand for "good old games"? As in- the place you go to find old games?)

I'm a steam wh0r3. If this is illegal to say please say it to me.

Nothing. Steam is just more appealing to majority. And their Galaxy client proves that Steam is the best when it comes to gaming clients.

They merge and Gaben becomes the true god-emperor of gaming.

I have too much invested in my steam account for GOG to take over - 700 games on steam, about 30 games on GOG (because they were not available on steam at the time, most of them now are). The only way GOG could take over for me is if they could port over my steam library.

Steam has sorta become the "windows pc" of the gaming world while GOG is the "steam os", sorta. It's hard for dev's to choose a retailer that has no DRM, as it makes it so much easier for people to pirate their games, not to mention steam makes it easy to keep all of your games into one place when you can easily add a non-steam game into your steam client. I currently have all of my games from GOG llinked on my steam, simply b/c I don't want the icons cluttering my desktop or blending in into a folder where I'll either forget about the location or have to find it through the many folders I already have on my desktop.

Long story short, Steam already makes things so much easier, and if GOG does eventually "win out", they have a loooonnggg up-hill battle.

More Games, some GOG-Bundles on HB and other bundle-sites, and, what i am realy missing, more LANGUAGES. Many Games are english only. I dont want my loved OldGame in english. i played in another language, i want that language!

I think the question will not be Steam or GOG but Amazon, Google, Microsoft, or Valve. GOG is far away from the others and they continue to grow far more rapidly as distribution platforms, which is what the real business is. I'm sure others like Apple would like to be a contender and so would Sony but both are far away with EA, Ubisoft, and Nintendo.

More fashonable games and more humble fashonable game gog bundles

Two words: A Miracle.

Trading Cards

first off gog needs keys that last. whenever I picked up a gog key it said something like "valid until..." - that's a major no-go in my book

besides that: my major issue with gog so far was the lack of some client to manage things (like desura, steam, etc. have), but it seems they finally got one \o/ first and foremost reason I like steam is install/patch management - it's been such a major pain with random installers, hard to find and even harder to apply patches, etc. (if you ever tried manually installing and patching something like oblivion/sims/spore including extensions you probably know what I mean)

anyway, just like all the other platforms that "joined late" (think uplay, origin (and EA's previous attempts), desura, ...) there's the problem of people already having (possibly quite big) libraries at one place and it's simply a lot more convenient to manage one big library than a bunch of small ones scattered over various clients/websites/whatever. so unless there's a "woah, that's ridiculously awesome" feature there's probably little reason to move to another platform (for their major spendings at least, e.g. I do get things here and there with exclusives, etc., but only for very special things I've been eyeing for a rather long time).