Yugiohnetwork.com
There are no officially supported sites that you can play for free.
yugioh network
search yugioh online downnload it is not free to play
duelingnetwork.com you can play other people around the world
you can sell yugioh merchandise on ebay, amazon, etc.Get free yugioh cards, http://freecards.weebly.com/
PS2 games are not free and you play them on a PS2
You can play free console games at a local GameStop or Microsoft store. Those are the only places you can play free console games. You can play them if they are not paid for.
yugioh online works yet you have to pay >.> people i think would rather buy the cards in real life. i say yvd works works to its free to play needs a download bit only takes moments. if you have a ds or psp you can also buy the games and play online if you want to do that
yes i can play free online bored games on yahoo games website.
There is one website called Gameking Hudzilla that allows you to play Yu-Gi-Oh and you don't need to pay or download anything. Unfortunately, this website isn't active anymore for some reason.
The rules are here: http://entertainment.upperdeck.com/yugioh/en/gameplay/rulebook/rulebook_v06_EN.pdf
yugioh cards are made by paper so i will tell you how to get your yugioh cards for free all you have to do is go to i make yugioh cards and you can make your own yugioh cards so now you kown how to make your yugioh cards.