I’m pretty sure MMOs such as World of Warcraft at their core are big databases. How are these databases able to connect to and manage data from hundreds of thousands of concurrent players in a way that feels seamless?
In: Technology
To a server, your character is just a few lines of information. the less information you need to send and receive, the lower the latency and the more you can fit on it. It only takes fractions of a second to send this amount of information.
Things like the UI and graphics are all processed at the client side meaning the game only has to deal with a string of information that is moving along a 2d or 3d grid and interacting with other lines of information. Something even a desktop PC can do many, many times per second without issue.
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