Most of the video games I’ve played were pretty good. The only one I can think of that I didn’t like was MySims Kingdom for the Nintendo DS. Dropped that pretty quickly. It was a long while ago, but I’ll guess it was because there were too many fetch quests and annoying controls.
There’s also the chaos aspect. Put 100 people in an arena and pretty much anything can happen. The top player can find themselves overwhelmed by people, and any competent player can come out the winner with a bit of luck. It keeps things from getting boring in the way a standard 8v8 in a standard map might get.