█▓▓▓▓▓▓▓▓▓▓▓▓██░░░░░░░██▓▓▓▓▓▓▓▓▓░░▓▓█ The best case in point, while not classic "participant to player" RMT I believe is Magic the Gathering Online, an actual card sport which has a just about 1:1 online version. You still have to invest in booster packs for getting playing cards, you could nonetheless trade playing cards https://gemstonero.com