[@Ammokkx] Yeah, Yu-Gi-Oh! RP's are great in theory, but in practice, you find a lot of problems, specifically, you have 1 of 2 directions to take Duels in:

1) Make everyone play on the honour system
The problem with that is that you really need to have a pre-determined winner, or the duels just won't end, or someone will power-play to instantly win.

2) Play them out using Dueling Network
Which sounds good in theory, but then you realize that Yu-Gi-Oh! as a game is one of the most horrifically imbalanced mainstream games, meaning that one person in the game is guaranteed to have the most competitive deck (Even if it isn't actually competitive, but it's still the most viable one) meaning that there is no reason they would ever lose. Meaning that, most games force you to either play a competative deck (instead of something you'd ACTUALLY want to play) Or just accept that you will never win a single game throughout the RP.

I've tried to run a couple over the years, but they never work out. The only one i can think of that would work would be something like GX season 3, crossed with Digimon, where player use their creatures to fight each other.