Automap asteroids was supposed to be an Easter egg in the Doom automap display. If completed, it would have reproduced the classic arcade game Asteroids. Dave Taylor started the hack; however, it was never finished. The Doom source code release contains a list of files which includes a file named "am_oids.c". This is the file which contained the automap asteroids code. However, the file was removed by Bernd Kreimeier who cleaned up the code before its public release.