is there any Pokemon TCG online games?

[countertop]

because there needs to be one if there is not!

[pandem]

OCTGN, Redshark and Apprentice. IMO OCTGN is the best, but there aren't as many players as in Redshark and Apprentice. You can download Redshark from www.pokebeach.com. You'll probably need also Hamachi to play with it.