The games I played, finished and spent money on:
Digimon Story Cyber Sleuth- Bought in 2017
Dynasty Warriors 9 (Platinum)- $60
Ratchet and Clank- $0
Deus Ex: Mankind Divided -$0
Bloodborne- $0
Beyond Two Souls- $0
Knack- $0
Grand Kingdom- $0
Monster Hunter World- $60
Dragon Quest XI: Echoes of an Elusive Age (Platinum)- $60
Spyro Reignited Trilogy (3 Platinums)- $40 (A gift actually)
Played:
Divinity Original Sin 2- $0
Kingdom Hearts 1.5- $0
Rayman Legends- $0
DBZ FighterZ- $0
Octopath Traveler- $0
League of Legends, Civ 3, CK2 and other continuous PC games- $0, Bought in other years
Most of my $0 purchases were from PS plus for $60.
Total spent: $240 or $280 if Spyro gift counts.
Unplayed PS4 Games in 2018 from PS Plus: (I won't bother listing PS3 or PS Vita only games)
Telltale's Batman: Season One
Starblood Arena
Uncanny Valley
Rime
Mighty No. 9
Bombing Busters
Claire: Extended Edition
Mad Max
Trackmania Turbo
In Space We Brawl
Q*Bert Rebooted
99 Vidas
King Oddball
XCOM 2
Trials Fusion
Cod Black Ops 3
Absolver
Heavy Rain
Space Overlords
Mafia 3
Dead by Daylight
Knowledge is Power
Here they lie
Destiny 2
God of War 3 Remastered
Another World
Qube: Directors cut
Sparkle 2
Foul Play
Friday the 13th
Laser League
The Bridge
2064
Rocketbirds
Yakuza Kiwami
Bulletstorm: Full clip edition
Roundabout
Burly Men at Sea
Onrush
Soma
Iconoclasts