There are signs when these civilizations come to an end
The N64 was my first console. Here are some suggestions:
- Legend of Zelda: Ocarina of Time
- Legend of Zelda: Majora's Mask
- Paper Mario
- Super Mario 64
- Jet Force Gemini
- Goldeneye 007
- Perfect Dark
- Conker's Bad Fur Day
- Pokemon Snap
- BattleTanx: Global Assault
- Star Wars Shadows of the Empire
- Star Wars: Rogue Squadron
- Super Smash Bros.
- Kirby 64
- Mario Kart 64
- Donkey Kong 64
Hope this helps.
Paper Mario is an RPG, so he may really like that one. The Legend of Zelda games for the N64 are also legendary...my personal favorites in the series.
You may just have to order online, though, because some of these are pretty hard to find in stores nowadays due to the console's age and the popularity and rarity of some of the suggestions.