The promise and peril of a new online shooter

The routine is familiar by now. A new online shooter with bright, colorful graphics launches and rockets up the charts despite the fact that you maybe haven't even heard of it. Or maybe it just has a really forgettable name. But everyone seems to be talking about it, and it's free, so you figure you may as well jump in. This moment of promise and anticipation may end up being the best this game will ever be - and there's a good chance that feeling won't last long.

I could be describing any number of games...