Red Dead Redemption coming to PS4 and PC through PS Now next month

The Undead Nightmare expansion will also be available.

Red Dead Redemption Coming to PS4 (and PC Kinda) Through PlayStation Now - GameSpot

Red Dead Redemption 2 PC Preload Available Now; Clocks in At Nearly 110GB on PC

PS4 Games Added To PS Now, Library Hits 500+ – PlayStation.Blog

Finally : r/reddeadredemption

Red Dead Redemption Has Been Quietly Removed From the PS Now and PS Plus Library

Red Dead Redemption PS4 Port Seems Solid, But Should Be So Much More

Red Dead Redemption coming to PS4 and Nintendo Switch later this month

All 200+ PS Now games leaving the service

PS Now Adds 9 New Titles to Streaming Service, Metal Gear Sold V: Phantom Pain Headlines - Gameranx

Red Dead Redemption, PlayStation Now

Red Dead Redemption Remastered Coming to PS4 and Switch

Red Dead Redemption 2 On PS Now Appears To Be Service's First Download-Only Game - PlayStation Universe

Red Dead Redemption Is Coming to PS4 and Nintendo Switch on August 17, No PC Release in Sight