My current list (physical games):
Commodore 64 - about 60 games
Nintendo 8-bit - about 20 games
Nintendo 16-bit - about 25 games
Sega Mega Drive 16-bit - about 30 games
Nintendo 64 - only 2 games (Super Mario 64 and Mario Kart 64)
Playstation 1 - about 35 games
Playstation 2 - about 40 games
Playstation 3 - about 20 games
Playstation Portable (PSP) - 13 games
Nintendo Gamecube - 2 games
Gameboy Color - only 1 game (Legend of Zelda)
Neo Geo Pocket - only 1 game
Nintendo 3DS XL (Luigi Special Edition) - only 1 game (Pokemon Y)
PC - about 5 games
And then there are the digital games:
PC - about 100 games (In steam 60 games)
PS3 - about 10 games