Hello GOG

they are going the steam way http://www.steamgifts.com/forum/qVyKr/gog-galaxy-alpha-news-signup

The forums are the best I've seen on any service to this day. Just ask if you have problems.

Other than that? Nothing.

Just buy some games 'n have fun :D

I'd suggest going GOG general forum and asking there. It's a nice community (which also hosts giveaways).

That said, I'm not sure what you're asking exactly. What do you mean by "GOG system"?

GOG has many old games, but it's mostly adding indies these days. It also sells movies (mainly documentaries related to gaming). As GargoyleBG mentioned, GOG Galaxy is now in alpha, and will be a Steam-like system, a client with support for auto-patching, achievements, multiplayer games, etc.

there is alot of support for other languages, and growing.

as for the forum, alot of good people left, and there is a small elite who thinks they are better then the rest, downrep trolling, but there are still a good bunch people too.
a few months ago about 30 games got pulled (from buying, if you own it you keep it) sometimes with barely a warning, and sometimes it happens with a game occasionally.

it's a good place too, support is very good.

It's a pretty good retailer, which cares about the quality of its store front.

I've been buying games off GOG for quite a few years now, and i have never had an issue (except for Silver, which they fixed) with either the games or the system. They'll sometimes give out games for free, and sometimes remove a title (or a bunch) from THEIR library (you get to keep whatever game you've bought, regardless of them selling it or having it removed, like steam),but the overall experience is pretty damn good.

All games are DRM Free, and most come with goodies such as manuals, reference cards, hint cards, sometimes even soundtracks and additional art. To me, it's about as close as it get to the good ol' days.

GoG rocks, have great sales and do a lot of free giveaways. Their new game selection is a little more limited but they have ALOT of the classics.

It's not really GOG related and moreso gaming in general but especially usefull since most GOG games are a bit older: PCGaming Wiki

Great source of information for any problems you might stumble upon while playing or trying to get a game to run.
I've never had a problem with any game from GOG though, they usually optimise these old games pretty well.

D&d collection >steam

Same hint as for Steam - wiat for sales before you buy :> there are sales and various promos on GOG as well ;)

they have promos and sales like all the time on gog.com

afaik when gog galaxy arrives, you will be able to play with your steam friends. look into that and if i'm right, don't hesitate to buy multiplayer games as well. but since everyone is mentioning good stuff about gog i'll be the devil's advocate now and tell you this. packs/bundles in gog are bs. unlike steam, packs don't have a reduced price.

1. GoG used to have fair pricing but lately duo taxing more or less some games started to have some sort of region pricing(though compared to steam is still cheaper(talking about EU2)). Example: M&B Warband - Viking Conquest - on GoG was a bit less than 10euros while on Steam it was 13.49€.
2. Like the Community Hub in Steam there is a forum section for every game/series + 1 General forum.
3. I dont think there is much support in localization since when they added 2 bulgarian games there wasnt bulgarian language(at least not listed on store page).
4. GoG atm is focusing on GoG Galaxy(alpha feature downloading and installing games + auto updates) also they are working on some Lucas Arts games.

GoG also got sales like Steam but they arent often as big as Steam's but still good enough.During sale almost the whole catalog is 50% off(without new or upcoming games) and daily there are 1-2 themed bundles/packs with games(if own part of it you GoG wont charge you extra) + there are flash deals(5-6h long) on games with higher discount than normal.
When comes to downloading games there are 3 ways(2 if you arent part of GoG galaxy alpha):

1. Download through your browser.
2. Download GoG downloader from their site for faster download speed
3. GoG Galaxy Alpha

With (1) and (2) you download the setup file/files and manually install the game after this you can delete setup files or store them.
If you have problem with a game first check your hardware then the forum and last GoG support which is usually fast and helpful.

Now just to say something that usually people get wrong or simply dont research about: Since you have setup files you can share them with friends its not forbidden and you wont get banned but sharing games mean less budget for GoG so its all based on your moral view.