I tried Hyper Fighters and Naval Warfare which I had bought for about two dollars each on Steam. The former was dismal while the latter had interesting ideas but the polish on the interface was lacking.
The interesting aspects of Naval Warfare were that it was set in science fictional Victorian world and also the design ironclad and aircraft.
There is nothing positive to be said about Hyper Fighters, from gameplay to graphics to interface. Avoid at all costs.