Gun Metal is a 3-D shooting game, released in 2003 for PC by the now defunct Rage Software Limited. The lead artist Nick Tipping and lead programmer Mark Featherstone on Gun Metal went on to form Moonpod.
The game allows players to pilot a futuristic mech which can transform into a plane. It is based around a war (sometime in the future) on a planet called Helios, where humans have settled. Enemy spacecraft have followed them from Earth and are attempting to exterminate the colony.