Crash 3, Spyro 1 and 2, GT2, Rayman 1 and 2, CTR, Looney Tunes Racing, Army Men Air Attack.
Crash 3, Spyro 1 and 2, GT2, Rayman 1 and 2, CTR, Looney Tunes Racing, Army Men Air Attack.
FFVII
PC Specs: CPU: 7800X3D || GPU: Strix 4090 || RAM: 32GB DDR5 6000 || Main SSD: WD 2TB SN850
The Tekken games, Soul Calibur, Soul Reaver, Alundra (apparently you have it, so this is a good start)...
Oh Castlevania Symphony of the Night is one of the games that holds best over time...
Form some serious hidden gems, look at Racket boy's list:
http://www.racketboy.com/retro/best-undiscovered-playstation-ps1-psx
well researched 
| JazzB1987 said: So guys today I got a PS1 to celebrate its anniversary in my own way :) (we had one long time ago but my sister sold it...) |
Parasite eve, legend of Dragon, Suikoden 1&2, Xenogears , clock Tower, Silent Hill. fear effect, Arc the lad, vagrant story, Metal Gear:Solid Snake. That's my recommendation.

Ljink96 said:
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There was one, on the PS2
So many great titles man:
Resident Evil 1, 2 and 3
Crash Bandioot 1, 2, 3 and Crash Team Racing
Spyro 1, 2 and 3
Dino Crisis 1 and 2
Duke Nukem Time To Kill
Parasite Eve 1 and 2
Vagrant Story
Final Fantasy 7, 8 and 9
Tomb Raider 1-4
Ape Escape!!!
Metal Gear Solid
Syphon Filter 1, 2 and 3
All the Wipeouts
Gran Turismo 1 and 2
Tobal 2
Abe's Oddysee & Abe's Exoddus
So much more!
Pay the $60 dollars and go buy a used copy of Tomba! 2.
A lot of the great games from the PS1 era have stupid high resale value and many are collectors item. Good luck with your wallet :p
All these games were mentioned at least once here... But I can't stress it enough!
Final Fantasy IV,V,VI,VII, IX, Tactics
Castlevania: Symphony of the Night
Chrono Cross/ Chrono Trigger
Mega Man 8, X4,X5, Legends 1 & 2
Resident EVIL 2
Street Fighter Alpha 3
Rival Schools
Oddworld: Abe's Odyssey
Twisted Metal 2
Crash Bandicoot 3: Wrapped
My personal top 20 PSX Games 


Clock Tower, Xenogears, Lunar series, Vagrant Story, Parasite Eve series (1 & 2), Brave Fencer Mushashi, Aregies, EinHander, Chrono Cross, Suikoden 1 & 2, FF VII-IX, Diablo, and Twisted Metal. There are more I want to name but I those are the ones I have played/wanted.
" It has never been about acknowledgement when you achieve something. When you are acknowledged, then and only then can you achieve something. Always have your friends first to achieve your goals later." - OnlyForDisplay
Crash Bandicoot 2
Crash Bandicoot 3
Metal Gear Solid
Final Fantasy VII
There are many other games that are must buy, but those games in particular define the PS1 for me.
"Just for comparison Uncharted 4 was 20x bigger than Splatoon 2. This shows the huge difference between Sony's first-party games and Nintendo's first-party games."