In the 80s, people played coin-operated games in arcades. All the little payments added up to enough to keep the arcades open and the game developers making new games! In online gaming, these small payments are incorporated into the game, so you can still play without paying. We use the money players put into Credits to improve our games, and keep giving you new ones. All games can be played for free—but if you buy a few Credits, you’re contributing to the upkeep and development of your favorite game.