[elPerroesmicorazon]

I'd really love to play it again but (I'm broke) I can't find any online platform. Years ago there was a website, but I can't remember it, and I think it was closed.

[pkoton]

Are you talking about YGO Online? I think it's dead, but Duel Links has been pretty good honestly. You can usually get new packs everyday

[elPerroesmicorazon]

I think I found something:

RE: Yu-Gi-Oh! online free game.

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and

RE: Yu-Gi-Oh! online free game.

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.
In Duelingnexus it's even possible to play with an AI, but it's not very competitive.