about TFX is an acronym for 'Tactical Fighter Experimental'. When you look at the graphics available in the other early combat flight sims it is easy to see why TFX caused so much excitement on it's release. The flight model could be adjusted from 'arcade' to 'military' and play modes ranged from arcade levels to the "UN Commander" mode. As UN Commander you planned missions, selected the aircraft and flew the Eurofighter, F22 or F117 Stealth Fighter.The later versions run straight from CD Rom and in a DOS box under Windows '98. It will run very smoothly on a '486 and is strongly recommended for beginners.