As you said, the graphics "eye candy" is still in the early days, but the game play is fun. A game like this will take off and it is much better than using faucets, if that is your motivation to use it. This is the perfect tool to introduce Bitcoin to kids for the first time.
How will you be funding the game? < own pocket? / donations? / Advertisements? / entry fees? >
Keep up the good work, hope to see some "eye candy" soon. ^smile^