Silent Iron is a single-player 3D shoot 'em up game where you control a mech trying to fight off enemy aircrafts and mechs. The game is very similar to Jet Ace.
The game offers thirteen missions in which you have to shoot down enemy aircrafts and mechs with either bullets or missiles while trying to avoid enemy fire. Both bullets and missiles will deplete as will your fuel. Fuel and ammunition can be replenished during missions by flying through a green ring saying "fuel" or "bullets". You start the game with three lives and shooting down enemies earns you points for a high score, sometimes bonus points can be collected by flying through a green ring saying the number of points.
Silent Iron was released on Playstation in 2004. The game falls under the genres of Action & Adventure.