I'm not counting PS+ games and not including STEAM games because I can't be bothered to check right now.
PS4 Physical
Red Dead Redemption 2 - Collectors Edition (€89.99)
Far Cry 5 - Gold (€71.99)
Shadow Of The Colossus (€33.19)
Ni No Kuni II: Revenant Kingdom - Princes Edition (€62.71)
Marvel's Spider-man - Special Edition (€73.72)
Shadow Of The Tomb Raider - Croft Edition (€95.83)
Yakuza Kiwami 2 - Steelbook Edition (€50)
Monster Hunter - Steelbook Edition (€55.90)
Yakuza 6: The Song Of Life (€43.50)
Assassin's Creed Odyssey - Spartan Collectors Edition (€145,98)
God Of War - Collectors Edition (€149)
PS4 Digital & Season Passes
11-11 Memories Retold (€14.99)
TEKKEN 7 - Season Pass 2 (€19.99)
Middle-earth™: Shadow of War™ Definitive Edition (€29.99)
FINAL FANTASY XV Season Pass (€12.49)
FIFA 19 (€48.99)
Marvel’s Spider-Man: The City that Never Sleeps (€19.99)
DMC4SE Demon Hunter Bundle (€9.99)
RESIDENT EVIL 7 biohazard Gold Edition (€29.99)
TEKKEN 7 - Season Pass 1 (€12.49)
Kingdom Come: Deliverance (€35.99)
Sniper Elite 4 (€20.99)
Oxenfree (€4.99)
Detroit: Become Human Digital Deluxe Edition (€69.99)
A Way Out (€29.99)
FIFA 18 (€29.99)
Prey (€14.99)
Batman: The Enemy Within (€14.99)
The Order (€9.99)
Watch Dogs 2 - Gold Edition (€34.99)
PS3 Digital
God of War Collection 2 (€19.99)
I also sold my base PS4 and got the Pro and the difference was around €200.
Grand Total: ~€1600
( Holy shit, that's the most I've spent by a long shot in one year)
