A mention of the AGS community on a GOG forum? You, sir, are my hero!
I have a solution to stop pirates from pirating, and it's actually a very logical solution; create a unique file in every installer that you can look up and see who bought it. It's 100% DRM-free, and it lets you know the name of the bastard who uploaded your game so you can send him to the clinker.

And again! And again and again! And again and again and again and againandagainandagainandagain...

What makes you think the pirates wouldn't be able to remove that the same way they remove Securom etc?

i have a feeling that the GOG installer has a way if saying who bought the game. So if a gog installer where found on a torrent site or a P2P network then gog then download it and search the isntaller for info on what user bought it and ban his behind and take his credit card for all the money they lost...
Argh they would have to glue him back together... IN HELL
EDIT just noticed that the cheese had the exact same idea :P

The GOG installer has nothing like that in it. Your download is identical to my download in every way. Frankly, adding something like that would be way more trouble than it it would be worth and in the end, it wouldn't actually stop anyone from uploading GOG games to a P2P site.
I got another one: super glue his sphincter closed then force feed him high-fiber cereals and laxatives until he explodes.

I was thinking these pirates should be put on a ship and forced to walk the plank...
In a sea of man-eating sharks.
Arrrrrrrrrrrrrr, matey! ;)

Isn't that exactly what that new stardock goo thing is?

I'm talking about an unremovable file that's like a txt document that says "This game was purchased by *INSERT NAME HERE". Something really, really simple, but will nonetheless tell a company who's responsible and apprehend them.

That would be DRM too, since something is tied to the game, wouldn't it?

Not really, since it wouldn't do anything to restrict the installation, it would just be a label on it that basically tells who the game belongs to.

Yeah but think of the logistics of the situation and it soon becomes impossible.
To do it, they'd have to compile the installer individually for every single person and not only would that be a big waste of processing resources but it'd stop people buying and downloading immediately since they'd have to wait for their uniquely compiled exe to be finished.
Furthermore the 'redownload whenever you want' option would require either the custom exe to be stored server side at the cost of a FUCK of a lot of storage space (10000+ custom installers of the 4GB of Far Cry for example) or the exe would have to be recompiled upon request.
Neither option is practical, epecially when you consider how small and ultimately irrelevant the feature would be

Or maybe they should just use OnLive... wait, what?

OnLive system requirements
Ethernet Connection To Server

We're gonna need some loooooooooong cables :-/

LOL! Thanks for this one. I'm going to watch every second of the thrilling nine hours of this film!

Things along these lines of been put forward before, but the issue is that it doesn't actually prevent piracy, only provide a possible way to go after the initial infringer after the fact, and it isn't even particularly effective at this. This is because you need a definitive way of linking a person to the game, and even if you do so at the time of purchase cash purchases of physical products quickly throws a wrench into the works, and this is to say nothing of false-positives created by such situations as people giving games as gifts. Additionally, even if the initial infringer can be identified there's the issue of jurisdiction when it comes to going after them, and if that person happens to be in a country like Russia or China, forget about it.