From Bulbapedia, the community-driven Pokémon encyclopedia.

Main series Pokémon games
I	II	III	IV
Red & Green Blue (JP) Red & Blue Yellow	Gold & Silver Crystal	Ruby & Sapphire FireRed & LeafGreen Emerald	Diamond & Pearl Platinum
Console connectivity games
Stadium (JP) Stadium	Stadium 2	Colosseum Box R & S XD	Battle Revolution Everyone's Ranch
Pokémon game templates
Main series | Side series | Pokémon Mini | Others