Gersen: First I would say good luck finding anybody in a customer group that has any clue what DRM mean and even then there is a difference between the "technical" definition of DRM and what peoples calls DRM. Having a game that requires you to connect online because the multiplayer server are hosted online is not technically DRM, in the same way that a MMORPG is technically not using DRM either.
So managing to prove that they lied on the DRM-free promise would be very hard, unless you live in a country where there is a very clear legal definition of what DRM and DRM-free means and that Gog violate that definition. You can try, as you said it doesn't cost much, but I wouldn't hold my breath.
Mori_Yuki: I know one consisting of volunteer lawyers and IT experts who successfully defended consumer rights against such giants as FB, Google and other companies but also Amazon and other well known companies. This group is just another option besides the Ombudsman.
I also wholeheartedly agree with you that a complaint about DRM measures, however we define it and wherever we draw our personal lines, would equally come to naught directed to a consumer rights group or Ombudsman as it would before a court of law. It would be a baseless claim because practically every company is allowed to protect their product from theft.
Ye and I don't have to discuss the effectiveness of such measures looking at the reality of how things are. A complaint can only be about asking whether GOG or IOI are allowed to bar access to paid content. Whether that be items, single-player
online content, user created content, basic offline functionality that's locked, in single player games. More or less the same questions applies to multiplayer components, which can also be part of a game, but access to it is locked by a third-party client, GOG Galaxy. Since Galaxy doesn't offer any multiplayer functionality by itself, all it does is gating access to a game's publisher/developer server, for which in some cases you need an additional account to access it, whether that's legal. Considering that the only purpose of GOG is a business selling games. It is not their task to offer an environment for publishers and developers to lock parts of content behind a client of their own making.
GOG also promises that a game can be played offline, in full, and there is a reasonable expectation that this entails full content, always offline, without major parts of it necessitating an account and online connection, all parts of which can be considered single player content. As I also explained, or at least tried to, GOG developed their client whereas before you could access all content without. There have been offline installers and to access multiplayer servers all one needed was an account at most and an active connection. Titan Quest as a case in point.
No way they can explain why use of a client is now necessary as opposed to before Galaxy even existed. Not in games like TQ, Grim Dawn, Victor Vran, Mini Metro and so many others. And that's where I think a consumer rights group or Ombudsman will be able to intervene and that it's not just about whether we as customers are entitled to demand DRM-free games without traps and pitfalls like use of a client or always online connection as GOG promises.
It's always within their right to change the policy to sell DRM products. All they can't do is locking away parts of a game they had no involvement in their creation, unilaterally, behind their client. It's not like Steam where from the beginning the purpose was clear and the way things work for publishers and developers. That games published on their are going to be bound to a client, consumers get the right to access their libraries and the option to purchase games, etc. This is not the case with GOG and, again, there is no reasonable explanation why this is the case now.
In short, there are numerous potential rights we would otherwise enjoy, having been violated and are violated at the time of this writing. It is easy to proof that this is the case because examples abound. Again this is then up to the experts to clarify and what's been said above will form part of the basis of my complaint.