Codename MAT is a space combat simulator published in 1984 by Micromega for the ZX Spectrum and Amstrad CPC written by Derek Brewster. The game is similar to Atari, Inc.'s Star Raiders from 1979. Both games allow switching between front and aft-facing views and have strategic chart and scan modes. While Star Raiders has the player fighting Zylons, in Codename MAT the enemies are Myons.
A sequel, Codename MAT II, also by Brewster, was published in 1985.