Levels are an amazing skinner box. You want power, they are literally a numeric increment of power, and the way most of these games work you consistently gain t

Levels are an amazing skinner box. You want power, they are literally a numeric increment of power, and the way most of these games work you consistently gain them in regular fashion to reinforce the response to play more to get more levels. It is why a game like WoW ended up being magnitudes more successful than Ultima Online, fundamental enjoyability besides, and it is why mobile games are literally Hitler and some can make boats of cash.