id,identifier,generation_id,order 1,red-blue,1,1 2,yellow,1,2 3,gold-silver,2,3 4,crystal,2,4 5,ruby-sapphire,3,5 6,emerald,3,6 7,firered-leafgreen,3,9 8,diamond-pearl,4,10 9,platinum,4,11 10,heartgold-soulsilver,4,12 11,black-white,5,13 12,colosseum,3,7 13,xd,3,8 14,black-2-white-2,5,14 15,x-y,6,15 16,omega-ruby-alpha-sapphire,6,16 17,sun-moon,7,17 18,ultra-sun-ultra-moon,7,18 19,lets-go-pikachu-lets-go-eevee,7,19