I am thinking of making one of those "find difference" games that compares two images for five differences to find, but I am having trouble finding decent stock photography to modify. I really like the ones on sites like shutterstock.com and iStockphoto.com, but am I reading the licensing terms correctly? There is a standard and extended license, but based on the restrictions, I would need an extended license because the Flash and free mobile app versions of my game could easily get more than 500k hits, so it would cost over a hundred dollars per photo?! Is that right?
I am willing to pay for royalty free photos, but I need over a hundred and spending more than $10,000 at this time is out of the question. Stock.xchng has a sketchy license agreement for the kind of game I am making. Any ideas?