The usual video game is play-to-pay, like <>, <> and <>, they are all expensive, because if you play more, you want to pay more, and the mode in traditional game is players spend time and money, they get pleasure and gratification back. So for the game developers, they control economic system in game, they decide how to set in-game parameter, their centralized server save the role and game equipment of players, which means you pay for the sword, clothes, shoes to make your role be better, but...

The usual video game is play-to-pay, like <>, <> and <>, they are all expensive, because if you play more, you want to pay more, and the mode in traditional game is players spend time and money, they get pleasure and gratification back. So for the game developers, they control economic system in game, they decide how to set in-game parameter, their centralized server save the role and game equipment of players, which means you pay for the sword, clothes, shoes to make your role be better, but...