Most simple bit af advice I can give is: think about how you'd respond if the exact same game came out, but made by someone else. Would you be aware of it? If not, why not, and what can you do about this? Once you were aware of this, would you want to investigate it further? If not, why not, and what can you do about this? Once you investigated it further, would you want to buy it? If not... you get the idea ;)