Seems like you need to be signed in to play DOOM 1 & 2 in the DOOM Classics Collection PS4 physical. You will be unable to play the two games offline. : r/LimitedPrintGames
Limited Run #395: DOOM: The Classics Collection Collector's Edition (P – Limited Run Games
DOOM Slayers Collection PS4 Sony PlayStation 4 Brand New 93155175174 | eBay
DOOM Classic PS4 Review - PlayStation Universe
How lost classic Doom 64 was revived for modern platforms - The Verge
DOOM and DOOM II updated for 16:9 support, gyro aiming, and more | The GoNintendo Archives | GoNintendo
DOOM II (Classic)
Doom 1 And 2 Updated To 1.0.6, Adding 30 New Levels On Consoles, Mobile, And PC - GameSpot
Doom's new 4K patch analysed on Xbox One X and PS4 Pro | Eurogamer.net
DOOM (1993)
Doom: Eternal - Playstation 4 : Target
DOOM Classic PS4 Review - PlayStation Universe
Doom The Classics Collection Cover 1 (PS4) NEW SEALED W/CARD MINT, LRG #276! | eBay
DOOM on Steam
DOOM (1993)
Original 'Doom' games hit PS4, Xbox One, Switch and mobile | Engadget