I never use landers with gaming offers, proved to be a waste of time for me. Might work for others. I pre sell with the ad copy, works best for me.
Have you tested several different ad copies? landers? Your wasting time asking why. The only way you will find out why is by testing, tracking and monitoring. Are you tracking, monitoring and testing different copies, landers, keywords and details? No one can help you any further than that without details (landing page, keyword list and so on)...
It's not Dark Orbit, lots of people do well with that offer. It could be the country you are promoting it in though..
Do you have any gender targeting?
I'm targeting the UK; probably the first choice of most people, so I guess it could be a little saturated now that I think about it.
No, I haven't targeted between male and female. My plan was to start off broad and narrow it down to what's converting. It seemed like the most logical way to approach my first campaign, but I wouldn't be surprised if I'm completely wrong.