Damn, a game would be cool. Maybe I could help? I have some ideas 
Panda, we need your voice and as many as we can possibly manage. Gamer's know the challenges of balance, and ultimately, what's FUN.
And for the Nxt ecosystem, game mechanics that will ding the pleasure/reward center of the brain to encourage LOTS of transactions.
There's http://nxtopia.wordpress.com, and I also reserved nxtopia@gmail.com and @nxtopia. I'm not beholden to the name, even as a working development title. But if we agree to use it (even short- to mid-term), I can register nxtopia.com.
And I decided to put 10% of my account balance (800 NXT) in with James' 5000 NXT bounty. I started playing the first D&D supplement in 1976 (age 7!) and haven't been the same since. Bringing this to fruition is beyond anything I could've hoped for as a 7 year old dice hoarder.
I would like to know more about how it would play, concepts or something.
How about this - a WOW type of game in which weapons are forged in limited supply (and controlled by their very own block chain!) those weapons gain power with use and time thus increasing in value and can be sold and traded in the game?