To be fair to Sony, that's a bloody good list to start the new PS+ with - Demon's Souls!
PlayStation Studios
Alienation - Housemarque, PS4
Bloodborne - FromSoftware, PS4
Concrete Genie - Pixelopus, PS4
Days Gone - Bend Studio, PS4
Dead Nation Apocalypse Edition - Housemarque, PS4
Death Stranding and Death Stranding Director's Cut - Kojima Productions, PS4/PS5
Demon's Souls - Bluepoint Games, PS5
Destruction AllStars - Lucid Games, PS5
Everybody's Golf - Japan Studio, PS4
Ghost Of Tsushima Director's Cut - Sucker Punch, PS4/ PS5
God of War - Santa Monica Studio, PS4
Gravity Rush 2 - Japan Studio, PS4
Gravity Rush Remastered - Japan Studio, PS4
Horizon Zero Dawn - Guerrilla Games, PS4
Infamous First Light - Sucker Punch, PS4
Infamous Second Son - Sucker Punch, PS4
Knack - Japan Studio, PS4
LittleBigPlanet 3 - Sumo Digital, PS4
LocoRoco Remastered - Japan Studio, PS4
LocoRoco 2 Remastered - Japan Studio, PS4
Marvel's Spider-Man - Insomniac Games, PS4
Marvel's Spider-Man: Miles Morales - Insomniac Games, PS4/PS5
Matterfall - Housemarque, PS4
MediEvil - Other Ocean, PS4
Patapon Remastered - Japan Studio, PS4
Patapon 2 Remastered - Japan Studio, PS4
Resogun - Housemarque, PS4
Returnal - Housemarque, PS5
Shadow of the Colossus - Japan Studio, PS4
Tearaway Unfolded - Media Molecule, PS4
The Last Guardian - Japan Studio, PS4
The Last of Us Remastered - Naughty Dog, PS4
The Last of Us: Left Behind - Naughty Dog, PS4
Until Dawn - Supermassive Games, PS4
Uncharted The Nathan Drake Collection - Naughty Dog, PS4
Uncharted 4: A Thief's End - Naughty Dog, PS4
Uncharted: The Lost Legacy - Naughty Dog, PS4
WipEout Omega Collection - Clever Beans & Creative Vault Studios, PS4
Third Party-Partners
Ashen - Annapurna Interactive,PS4
Assassin's Creed Valhalla - Ubisoft, PS4/PS5
Celeste - Maddy Makes Games, PS4
Cities: Skylines - Paradox Interactive, PS4
Control: Ultimate Edition - 505 Games, PS4/PS5
Dead Cells - Motion Twin, PS4
Final Fantasy 15 Royal Edition - Square Enix Co. LTD, PS4
Hollow Knight - Team Cherry, PS4
Marvel's Guardians of the Galaxy - Square Enix Co. LTD., PS4/PS5
Mortal Kombat 11 - WB Games, PS4/PS5
Narutoshippuden: Ultimate Ninja Storm 4 - Bandai Namco Entertainment Inc., PS4
NBA 2K22 - 2K Games, PS4/PS5
Outer Wilds - Annapurna Interactive, PS4
Red Dead Redemption 2 - Rockstar Games, PS4
Resident Evil - Capcom Co., Ltd, PS4
Soulcalibur 6 - Bandai Namco Entertainment Inc., PS4
The Artful Escape - Annapurna Interactive, PS4/PS5
The Crew 2 - Ubisoft, PS4
And loads of 'Classic Games', here
www.eurogamer.net/sony-details-dozens-of-games-coming-to-revamped-playstation-plus-catalogue