For a browser based RPG, Duels is a refreshing step in the right direction. From the graphical content and the MMO style equipment system, it's easy to see why Duels is often referred to as the ultimate time killer. The interface is easy to understand and the combat is deep enough to provoke enough tactical thinking from most casual gamers. All in all, Duels will steal quite a few hours away from anyone. Challenge Games has committed itself to providing quite a bit of content, and they tend to provide updates every week. If you're a casual gamer, you owe it to yourself to take Duels for a spin.