This page will contain a list of Pokemon organized by the point at which you can catch them.

So you want to be a Pokemon Master?

After creating your Character and going through the usual steps you will be prompted to choose your starter.

Now available: 

Bulbasaur, Charmander, Squirtle

Adventures and excitement...

After traversing Route 1 and returning to Professor Oak you'll be given your PokeDex and 5 PokeBalls.

Now available:

Pidgey, Rattata, Caterpie Night (Route 1)
Weedle (Route 2)
Mankey, Spearow (Route 22)
Kakuna, Metapod, Pikachu (Viridian Forest)
For a limited time Shroomish can also be found in Viridian Forest.

A Rock in the Path

Make it through Viridian Forest and you'll find Pewter City. Beat Brock for your Boulder Badge and continue on.

Now available:

Nidoran♂, Nidoran♀, Jigglypuff (Route 3)
Zubat, Geodude, Clefairy, Paras (Mt. Moon)
Ekans, Sandshrew (Route 4)

Pool's closed...

Past Mt. Moon and Route 4 is Cerulean City, but you don't have to rush into beat Misty... Head north and fight off your Rival for access to a couple new pokemon.

Now available:

Bellsprout, Oddish, Abra (Route 24)

Next Beat the Rocket Grunt that trashed those poor NPCs house and head south.

Now available:

Meowth (Route 5)

Skip Route 6, head into Vermilion City and pick up your Bike Voucher and Old Rod.

Now available:

Magicarp (All water everywhere, Old Rod)
Sandshrew, Drowzee (Route 11)
Diglett, Dugtrio (Diglett's Cave)