The Daily Grind: What makes an MMO a sandbox?

Age of Wushu has been generating a lot of discussion in the Massively community as of late, and while the game isn't everyone's cup of tea, most everyone seems to have an opinion on it. Crazily enough, we've even heard from some folks who don't consider the martial arts title a sandbox, despite the fact that its developers call it one and despite the fact that it boasts many sandbox-style features.

That brings us to today's Daily Grind question. What makes an MMO a sandbox in your view? Are there certain must-have features? Conversely, what prevents an MMO from being a sandbox? Let us know in the comments!

Every morning, the Massively bloggers probe the minds of their readers with deep, thought-provoking questions about that most serious of topics: massively online gaming. We crave your opinions, so grab your caffeinated beverage of choice and chime in on today's Daily Grind!