If you want an F-16 sim, try out Falcon BMS. It's a free mod of the original Falcon 4.0 from the 90's. You do need to have a copy of Falcon 4.0 to install BMS, though. I do not condone piracy, but since Micropose, the original creator, no longer exists, the legality of downloading Falcon 4.0's iso is debated. Be warned, Falcon BMS is an F-16 simulator, so it has a pretty steep learning curve. Another warning: Falcon 4.0 Allied Force does not work with BMS. You need the original Falcon 4.0.