98 was incredible, besides all the ones OP mentioned they missed:
- Metal Gear Solid
- Sonic Adventure
- Resident Evil 2
- Sonic Adventure
- Grim Fandango
- Caesar III
- Unreal
Surely one of the best years, only possibly beaten by 2004:
- Half Life 2
- MGS3
- GTA: San Andreas
- Ninja Gaiden
- Halo 2
- World of Warcraft
- Doom 3
- Killzone
- Fable
- Burnout 3: Takedown
- Lumines
- Far Cry
So many amazing games!