And it runs smoothly in what resolution/detail level?

I'm on i7-3630QM @ 2.4GHz, 8GB RAM and GeForce 650M @ 2GB and the site doesn't give me a chance. I wish they're wrong! :-)

Everything maxed out, 1080p. I think I knocked AA or something down a notch. I got steady 40FPS and more. Now I wish I didn't delete it so I could do a bit more tests for you, oh well.

Unless pirates optimized the game while Petroglyph wasn't looking, I'd say you're fine :-P In fact I just checked can you run it as well - it claims that I can't because I have Windows 8 64bit as opposed to Windows 7 32bit.

OK, you calmed me down :-) Much thanks for the info!

I got confirmation from the store that it will require Steam activation. Perplexity! :-S

Fenixp (or anyone else who played this), did you have problems with clicking like this review suggests?
http://steamcommunity.com/id/jingobingonfinky/recommended/290790/

I'm thinking of buying this but will wait till I get a new PC that can run this (getting one in March or April). Still that click thing sounds like a problem if it won't get addressed. I'll probably wait till I know for sure whether GOG gets it or not anyway.

Have you been writing to Petroglyph about possibility of GOG release? If so, did you get a reply?

All right, played for a few days, no click registering issues, a lot of gameplay awesome goodness.

Thanks.

I'll wait a bit to see what are the chances of it appearing on GOG, but I expect to buy it pretty soon.

OK, so I got a reply from Ted Morris, Executive Producer at Petroglyph about possibility of GOG release:

"I'm really not sure what our publisher has in mind for GOG. Most of the
games there are a few years old, so I suspect it may be a while before Grey
Goo appears on the store there. We are definitely trying to make it broadly
available both here in the United States and in other territories with a
variety of distributors (and Amazon.com). So, if you can't get it through
Steam, there are likely other ways to get it.

Thanks for your interest and support!

-T"

I have a feeling that he's not that familiar with GOG and that not only old games are being released here. I'm composing a reply and I'd like to present examples of new an high-budget games recently released on GOG - can you help me, so I don't miss any of them? :-)

Not exactly super high budget, but there is the upcoming Pillars of Eternity and Witcher 3. There is also Age of Wonders 3, Blackguards 1+2, Divinity: Original Sin, Shadows: Heretic Kingdoms, Wasteland 2. Those are games that were released day 1 or close to day 1 here on GOG.

The game is quite heavily tied to Steamworks. It does work offline just fine, but in all honesty, I don't think the publisher is going to be interested in releasing without online multiplayer and ladder.

Thanks :)
We have to believe! :)

I got a second reply from Ted Morris from Petroglyph Games, about the Grey Goo release on GOG:

'We are definitely looking into it, but it might still be a while. Stay tuned.'

Yay! :-)

Yay! I guess Galaxy changed their mind. Which is great, especially now since the campaign expansion has been released.