Old games that aged well

[him over there]

Chrono trigger is still an amazing story wrapped up in a vibrant world full of wonderful music and an expertly blended real time and turn based battle system. I'd say it qualifies.

 

[IrateDonnie]

Diablo 2, I find myself going back every seven or so months for a ladder climb. Need my fix, na mean?

Yeah, whenever I play it after a while I don't even notice the graphics.

 

[Gaiseric]

Freedom Fighters

Yes! I still play that from time to time.

Brothers in Arms
Might and Magic 6+7. The graphics are pretty terrible but they are still fun.
Star Wars: Shadows of the Empire. Controls could use some work.
Star Wars: Rogue Squadron
Red Faction
Yakuza
Killswitch
Spartan Total Warrior

 

[SuaveSalarian]

Sly Cooper and Gladius have aged well, and will forever live on in my heart.

 

[Rooster893]

Halo: Combat Evolved will never get old. And the Anniversary Edition is even better!

 

[tofulove]

old school sonic and Mario games. Pokemon games. vector man, comix zone. mortal kombat, starcraft diablo.

 

[Andy Shandy]

Wind Waker. Because of the style it was made in, I doubt that game will ever look bad.

Also the Mega Drive Sonic games.

 

[mrhappy1489]

Mega Man X still looks really good considering its age, frankly so do most mega man games. There is something just graphically right about them that makes them looks great years after they were made.

 

[floppylobster]

From the arcade -

Robotron 2084
Ms. Pacman
Bank Panic
Galaga
Choplifter
Defender
Flying Shark
Ghosts n Goblins
Joust
Moon Patrol
R-Type
Rygar
Solomon's Key
Time Pilot

OTHERS (that I recently played and still enjoyed)
Cobra Triangle (NES)
Doom 2 (PC)
Firelord (SPECTRUM)
Command & Conquer (PC) single player

 

[Quaidis]

Tetris. It's still a tried and proven formula that hasn't fallen with age. And it's still fun. =D