I'll take a guess in 2 days :)

Adios
Baldur’s Gate: Enhanced Edition
Book of Demons

Deus Ex: Human Revolution - Director's Cut
Yes, Your Grace

Already available :)


EDIT: Yet another senior moment! Just realised that these are from February's offerings. Sorry.

Deus Ex 2 could be a serious candidate.
Other 2k game: X-com chimera squad or Mafia II
Only 24 hours to know it.

Prime Gaming March 2025:

Now Available: Saints Row®: The Third™ Remastered [GOG Code]
Now Available: Mafia II: Definitive Edition [GOG Code]
Now Available: Crime Boss: Rockay City [Epic Games Store]
Now Available: Naheulbeuk’s Dungeon Master [Amazon Games App]
March 13: Wall World [Amazon Games App]
March 13: Syberia: The World Before [GOG Code]
March 13: Endling — Extinction is Forever [Amazon Games App]
March 13: Dark Deity: Complete Edition [GOG Code]
March 13: Beholder 3 [Amazon Games App]
March 20: Wolfenstein: The Old Blood [Xbox and PC via Microsoft Store Code]
March 20: Mutazione [GOG Code]
March 20: Figment 2: Creed Valley [Amazon Games App]
March 20: Legacy of Kain: Defiance [GOG Code]
March 20: Mortal Shell [Epic Games Store]
March 27: The Forgotten City [Amazon Games App]
March 27: Deus Ex: Invisible War [GOG Code]
March 27: Session: Skate Sim [Epic Games Store]
March 27: Let’s Build A Zoo [Epic Games Store]
March 27: Gamedec — Definitive Edition [GOG Code]
March 27: The Wisbey Mystery [Legacy Games Code]

Prime Gaming March 2025:

GOG Games:
March 6, GOG | Saints Row: The Third Remastered
March 6, GOG | Mafia II: Definitive Edition
March 13, GOG | Syberia: The World Before
March 13, GOG | Dark Deity: Complete Edition
March 20, GOG | Mutazione
March 20, GOG | Legacy of Kain: Defiance
March 27, GOG | Deus Ex: Invisible War
March 27, GOG | Gamedec - Definitive Edition

Other Games:
March 6, Amazon | Naheulbeuk’s Dungeon Master
March 6, Epic | Crime Boss: Rockay City
March 13, Amazon | Wall World
March 13, Amazon | Endling - Extinction is Forever
March 13, Amazon | Beholder 3
March 20, Xbox/Microsoft Store | Wolfenstein: The Old Blood
March 20, Amazon | Figment 2: Creed Valley
March 20, Epic | Mortal Shell
March 27, Amazon | The Forgotten City
March 27, Epic | Session: Skate Sim
March 27, Epic | Let’s Build A Zoo
March 27, Legacy | The Wisbey Mystery

Nice. Five games that I don't own yet and three are even on my wishlist (Dark Deity, Mutazione and Gamedec).

And please don't waste your codes if it's doubled, bring it here instead: https://www.gog.com/forum/general/gogs_general_trading_thread
or to giveaways:
https://www.gog.com/forum/general/the_community_giveaway_6th_edition
https://www.gog.com/forum/general/ninja_giveaway_20

Dark Deity is very good, in my opinion (although it has some noticeable bugs).

FYI Mafia II Definitive Edition seems to include Mafia II Classic.

Thanks to you both for providing this info

They do seem quite consistent in giving away full series. Was half expecting to see Smurfs: Mission Vileaf this month. Doubt we'll see the LoK remasters anytime soon though.

Dumb question, but is there any content difference between the versions of Bioshock being given away by Amazon and the ones that were previously given away by Epic?
I'm wondering if I can offer the GoG versions from Prime to somebody else since I already have the Epic versions.

A good tip is to check the list of games availables to play on amazon luna.

https://www.gog.com/en/promo/play-on-luna

That 's a deal between Amazon and gog, games gave free are to promote this service, so you could see more of these given away for free in the future (not all).