Jamiebourne: It was quite random, but it was these that I know of:
Thanks. I asked so that anyone could check their accounts for the same titles (whether the problem is reproduced with said titles), and also to try to understand if there is some common factor in them.
At least the titles seem quite random, did you happen to buy them around the same time or something?
Yeah, it would be nice to hear from GOG some explanation because, as said, in earlier cases a game has gone missing from everyone's accounts. This is the first time I remember games gone missing only on someone's account, without GOG intentionally revoking said games (e.g. because they were bought from G2A or such).
Anyway, as said, gogrepo is a pretty good tool to detect mishaps like this (providing you have already downloaded all your games with it, so that it can check if there are mismatches between your GOG online library, and your local library). I guess I will run gogrepo soon, I am a good test subject since I have quite many GOG games (1360 at the time of writing). So at least if this was some widespread problem, I should see it with gogrepo. There are lots of other gogrepo users as well out there...