The act of collecting is very satisfying. Whether you collect stamps, coins, or in the case of gamers, virtual items you get a big payoff. That’s what collectathon games are all about. Getting the big payoff. Getting the dopamine hit. Then doing it all over again. Exploration is only part of what makes them so rewarding. It’s almost like a genre that encompasses everything a game can do, discovery, the coloring of a world with…