Did you ever want to test your sword skills against a huge evil-looking red demon with fangs, curled horns, and a scimitar that could cut you in half with one swipe? Yes? Weirdo. Oh, I mean, cool, here's the game for you! RuneScape by Jagex.
Here's a quote:
Join the over 135 million users
Test your massive-multiplayer online (MMO) game skills today in RuneScape, and see if you can kick some demon-*ss. It's fun and you're doing a good service for the heavenly world.