I don't have Ethan Carter yet, and I don't think the Master of Orion change would increase the number of games in the library. However, I think I may have just found it. I can't remember for sure if it was always this way or not, but Star Wars Jedi Knight: Dark Forces II is now separate from Star Wars Jedi Knight: Dark Forces II - Mysteries of the Sith. If anyone can confirm whether or not this is a change I would appreciate it.

Nope. :P
It happened some time later.

Thanks for letting me know! Well then I'm still stumped as to what this mysterious new item in my library is.

Probably because the expansion is stand-alone.

I meant later than its release date, not now. :P
Relevant post.

How many games do you have? If they are not too many, we could try to cross-examine any weirdness. Alternatively, see if it was a DLC irregularity by making an account refresh.

Well the account refresh fixed the problem of some games I got a refund on today lingering in the library, but the mystery game is still there. There are definitely too many to cross-examine, but I appreciate the offer. I've counted the games to make sure the number is correct, and it is. It's not a big deal if I can't figure out what was added, but I am curious.

From MaGog's logs for 16 September:

NOTE! CHANGED Grand Ages: Medieval [Upcoming], genres: Role-playing, Real-time, Modern ***TO*** Strategy, Real-time, Managerial





NOTE! CHANGED Vanishing of Ethan Carter, The, sys_req_win: Windows XP SP3 / Vista / 7 / 8 / 10, Processor: Intel Core2 Duo or equivalent AMD, Memory: 4 GB RAM, Graphics: DirectX9c compliant card with 512MB of VRAM, DirectX: Version 9.0c, Hard Drive: 9 GB available space, Sound Card: DirectX9c compliant ***TO*** Windows XP SP3 / Vista / 7 / 8 / 10, Processor: Intel Core2 Duo or equivalent AMD, Memory: 4 GB RAM, Graphics: DirectX9c compliant card with 512MB of VRAM, DirectX: Version 9.0c, Hard Drive: 9 GB available space, Sound Card: DirectX9c compliant, Redux Edition notice: The Vanishing of Ethan Carter Redux Edition requires a 64-bit Windows operating system and 6 GB of RAM

NOTE! CHANGED Vanishing of Ethan Carter Collector's Edition upgrade, The [DLC], sys_req_win: ***TO*** Windows XP SP3 / Vista / 7 / 8 / 10, Processor: Intel Core2 Duo or equivalent AMD, Memory: 4 GB RAM, Graphics: DirectX9c compliant card with 512MB of VRAM, DirectX: Version 9.0c, Hard Drive: 9 GB available space, Sound Card: DirectX9c compliant, Redux Edition notice: The Vanishing of Ethan Carter Redux Edition requires a 64-bit Windows operating system and 6 GB of RAM

Did you get Sword of the Stars: The Pit Gold Edition in one of the pinatas? If you already owned the base game and the expansions, the "new" Gold Edition might have created a new entry in your library without really changing anything.

Nope, I don't have that.

I think The Witcher 3: The Wild Hunt - Hearts of Stone just got added to my account. It was part of the season pass.
I also just noticed they added a separate entry for Shadow Warrior (2013) Direct X 11 Version.

I started downloading Shadow Warrior (2013) DirectX 11 version, and thought I'd check on the Shadow Warrior (2013) files to see if they had changed.

I haven't downloaded the Shadow Warrior (2013) files, but the file names end with 2.2.0.1, like setup_shadow_warrior_2.2.0.1.exe.

My last download of Shadow Warrior (2013) files ended with 2.2.0.9, on May 18th shortly after the May 11, 2015 changelog entry.

Was there a rollback that I missed, or should the files have ended with 2.3.0.1? And shouldn't there be another changelog entry?

See here for the changes related to the addition of DX11 back around May 6 (including the mention that the DX9 version number regresssed).

The only changes since then are reported and [url=http://www.gog.com/forum/general/the_what_did_just_update_thread/post9960]here, none of which are related to Windows and none of which are listed in the changelog.

P.S. Thanks for pointing out that the new addition mentioned by Mario is probably Hearts of Stone.