So, the versions of TES Arena and TES Daggerfall that were added to my account when I got TES Oblivion from that Prime Gaming giveaway just disappeared.

No idea what happened, but I think that those two were the only ones that went missing. Also, Absolute Drift, Seven and Metro Last Light Redux returned to the most recently bough spot in my game list (this always happens when I refresh the account page, though I didn't this time).

I was able to re-add them to my account from their store pages as well, so no harm done there. But you guys may want to check out if they went missing on your accounts too.

Thank you, some of us checked this long before
https://www.gog.com/forum/general/get_your_copy_of_the_daggerfall_unity_gog_cut_8e8e7/post71

Strange, it didn't happen to me before. Wonder what's going on on gog's end.

I did it when it was first released. Though I had already finished Daggerfall through Daggerfall Unity over a year ago.

You mean you did but are you sure those 2 games were on your account at that time or you noticed them gone only recently?

I actually noticed my account was a pair of games down just a little before making this topic. Earlier today, it wasn't. Then I went about trying to deduce what was missing and I saw that both games were absent.

So Arena and Daggerfall games were removed today.

In other words owners of gifted Arena and Daggerfall games for Bethesda publisher games might be affected at random.

Even more weird.

Indeed! XD At least the affected games are free.

You need to reclaim, download/purchase the games again.

It happened to me a couple of weeks ago. Probably they changed something from the database, or needed to make them standard titles, whatever.

It's been reported before: Two video games have disappeared from my GOG library

Since that thread was started, they got yanked out of my account as well. Neither the account or user refresh links helped. I guess it's too much to ask not to mess up anyone's library, or at least provide a warning if it can't be avoided.

I didn't touch Daggerfall Unity - GOG Cut, so that's unrelated.

I just noticed they were gone for me as well, but I was able to add them back easily enough. Kind of annoying the arrangement is messed up now.

...we REALLY need Skyrim for me to complete the collection :D

I found out a half hour ago when I wanted to install Oblivion, Very odd but this should be stickied for the rest of the forums users to see incase they did not know of this issue.
I have a feeling we will get skyrim in a few years. I think when they release the new scrolls game we will have the chance to get skyrim.

Gone from me too. I re-added them ... but as a bonus at least now I have an order number which proves I had it in my account.

Can confirm, checked my library, gone, re-added them for free.