Seems like Fallout New Vegas Ultimate Edition will be part of November's Prime Gaming offering.
https://gg.deals/subscription-news/prime-gaming-november-2022-what-games-are-we-getting/

Great news if true. Not only we get a truly DRM-free copy, but owning both Fallout 3 (which is currently free on Epic as part of their weekly giveaways) and NV could give us access to Tale of Two Wastelands.

Here's the full line-up so far according to leaks:
- Fallout New Vegas Ultimate Edition (GOG)
- WRC 9 FIA World Rally Championship
- Last Day of June
- Indiana Jones and The Last Crusade
- Etherborn
- Whispering Willows
- Facility 47 (Legacy Games)

The new games are up, the list was correct.

Just saw this list of games that will allegedly be free next month for Amazon Prime customers (start: December, 27th ):

- Dishonored 2
- Metal Slug
- Metal Slug X
- Metal Slug 3
- The King of Fighters 2003
- Real Bout Fatal Fury
- The Last Blade
- The Last Blade 2
- Twinkle Star Sprites
- SNK 40th Anniversary Collection: (Alpha Mission, Athena, Beast Busters, Bermuda Triangle, Chopper I, Crystalis, Fantasy, Guerrilla War, Ikari Warriors, Ikari III: The Rescue, Munch Mobile, Ozma Wars, P.O.W.: Prisoners of War, Paddle Mania, Prehistoric Isle, Psycho Soldier, SAR: Search and Rescue, Sasuke vs. Commander, Street Smart, Time Soldiers, TNK III, Vanguard, Victory Road, World Wars)

January titles are up, and we've got two GOG titles this time:
- The Evil Within 2
- Beat Cop

The games mentioned in the post above were supposed to leave today, but they're still available to claim:
- Dishonored 2 (GOG key): ends in 28 days (Feb 01)
- SNK titles (redeem on Amazon Games Launcher): ends in 330 days (Nov 30)

Very pleasantly surprised we got 2 GOG keys this time. I hope it sets a trend!

Judging by the GOGDB entry, next month's game is Morrowind:
https://www.gogdb.org/product/1432185303#changelog

The only usefulness Amazon Prime gaming has for me, as far as DRM-free games go, are the free GoG game codes they pass out. Some of them are pretty good. Last I checked, Dishonored 2 is one of the free games this month. Very classic game everyone should get if they haven't played it. And getting a free GoG code for it is really sweet.

Also surprised anyone would bother looking for DRM-free games there when you can just get them through GoG and know they're DRM-free without having to waste time researching.

Yeah, but remember that the Prime games are always free; while I'm all for DRM free games, I'm more relaxed if I'm given something for free as I don't really lose out if I lose access to the game (I never paid for it, so I'm happy to accept the "rental" that DRM is)

As far as I know, all games you can redeem on Amazon are DRM-free, and obviously activation codes for GOG are that as well. Epic games may or may not be, depending on the game.

The only ones that are not DRM-free would be some keys to some other affiliated stores.

So of those monthly free games at least five would be "guaranteed" to be DRM-free in any case, although they are not marketed as such.

As redeeming free games on Amazon takes only one click, and activation codes for other stores like GOG three clicks, I don't think it's too much wasted time in any case.

Also it's not a straight one to one, as there are, in fact, games on Amazon not on GOG, such as the WRC games.

Well after being forced to take free month of prime after my first order on amazon.com.au, I can attest that the 9 games I downloaded using the amazon client were DRM Free, and I can attest all 9 worked with wine.. well 1 of them needed proton.

My final attestation is that Lawn Mowing Simulator is exactly as boring as you would think.

Confirmed. Morrowind is now available to claim until March 02. Claimed keys are good until April 01.
https://gaming.amazon.com/loot/tesmorrowind

But please check your library before claiming your code. This package differs from the actual store listing and therefore GOG fails to check if you already own it.
If you claimed Oblivion last year you should've got a GOG discount code for Morrowind around the time you redeemed the key.

PS: Morrowind has been given away by Bethesda when they released their own launcher (RIP), and it has migrated to Steam when their launcher was discontinued last year. So there's a good chance many of us already own it in one way or another. Though in this case I'd still want a truly DRM-free copy anyway.

The first game from March is Baldur's Gate: Enhanced Edition. According to to GOGdb the listing got an update as of today, right after the March games were announced. There's a good chance it's a GOG redeem.
https://www.gogdb.org/product/1207666353

Other games from March:
02/03: Baldur’s Gate: Enhanced Edition
09/03: Adios (likely an Epic redeem, was already given away a few weeks ago)
09/03: I Am Fish
16/03: Faraway 3: Arctic Escape
23/03: Book of Demons
23/03: Peaky Blinders: Mastermind
30/03: City Legends: Trapping in Mirror — Collector’s Edition (likely a Legacy Games redeem)

Where do you see an update? The game, AFAICS, hasn't been updated since 2021-05-26.

If you mean "Last updated: 2023-02-24 17:46", that's just GOGdb's timestamp of the last time it checked the GOG API and updated the GOGdb information, even if nothing has changed in the game. Practically all the games on GOGdb are timestamped in this way every couple of hours,

Yeah, I thought it referred to a listing update, not the game itself. But I was wrong either way, sorry.

Anyway, Baldur's Gate is available to claim now, but it's tied to Amazon Games Launcher, not an external redeem.