Multiplayer is a thing, where both crashing servers and also attacking other clients (even in non-p2p titles) is not that uncommon. Many titles don't permit community servers any more, of course.
A lot of games have multiplayer functionalities these days. That make them a potential target for RCE and related vulnerabilities. Granted, if you don't play video game as root, the impact should be limited, but it is still something to be aware of.