Do you like it ?
The melody and chord progression are cool, and I could see this as a game background, however, I think you need to switch it up a bit. Change sounds once in a while. Substitute the main synth melody for a flute counter melody to break it up a bit, add percussion here and there, or something along those lines. It sounds a bit too repetitive. A little bit too busy when the synth speeds up for that double time melody as well imo.
With some work I think this could become a fun game background, it just needs to be a little more interesting. Good luck!
Thank you for your opinion.
Altough I really like the instruments I picked I will play with some other instruments such as flute and I will modify percussion (is not my strong zone).