AstDX is an emulator for Atari's Asteroids arcade machine with newly designed graphics and sound. It uses Atari's program ROMs from 1979, but instead of drawing vector graphics as in the original game, all game objects are replaced by animated sprites. In the original arcade machine the sound is made with special circuits for each sound effect. In the emulator this is achieved with digital samples (.wav files). Also there is added background music track with 10 different songs in MIDI format.
AstDX runs under DOS.