Wake Up The World Seems Brighter Today!

A NEW HAND TOUCHES THE BEACON

You're best off starting with the manga (which i may or may not have a link to). It's the original continuity and is frankly the most enjoyable version of the story and characters in my opinion. Season 0 was its first anime adaptation, which only aired in Japan. It covers the first ~7 volumes of the manga roughly. I'd start with this before moving on to the duel monsters anime.

The anime we got in the west is Duel Monsters. (Here's season 1, the channel has a lot of the other seasons as well) It skips past the first 7 volumes to get straight to the card games. To be fully honest this anime is...an experience, let's say. HORRIBLE pacing, censorship a la mode, a shit load of filler arcs, and character assassination to top things off. It's still good fun but you're not going to get the best version of the story out of it.

If you like the Duel Monsters anime but wish the duels didn't last 5+ episodes, here's the abridged series. Be warned, a lot of the early episodes are a product of their time, let's say. This is the original abridged series EVER on the internet, and it's still an ongoing project. Honest to god there is nothing significantly worthwhile in the real anime that you'll miss out on by just watching abridged instead LMAO

DSOD stands for Dark Side of Dimensions, which is the manga's tie-in epilogue movie. I'd save it for last.

If you are for some ungodly reason interested in learning the actual real life card game, Master Duel is free to download on most platforms. It's a lot of fun (if you don't drive yourself insane playing ranked) and I found it to be really helpful at teaching the game to a complete noob like myself. There's also Duel Links, which is a slightly more casual mobile game that uses a modified format for faster paced matches.

------ also here is the full picture