Help! Looking for a free drone sim

[Houndpup Rc]

Hi! I am looking for a free drone freestyle/racing simulator that doesn't require a gaming platform, and that will work either with Windows 7 or Linux mint. I am looking for something to practice with a lot before I get my own 5" freestyle. I don't mind paying up to like $10 but would rather not. Have any suggestions? Thanks!
Ps.I will be using a FlySky transmitter for the controller.

 

[Houndpup Rc]

I have been using picasim but that drone is getting a bit slow for me! lol

 

[JetCrafts]

u cld get liftoff from steam unlocked
i did