Editing Asteroids (video game) (section)

===Arcade sequels===
Released in 1981, ''[[Asteroids Deluxe]]'' was the first sequel to ''Asteroids''.<!-- <ref name="atari_production99">{{cite web|title=Production Numbers|url=http://www.atarigames.com/atarinumbers90s.pdf|publisher=Atari|access-date=March 19, 2012|year=1999}}</ref> --> Dave Shepperd edited the code and made enhancements to the game without Logg's involvement. The onscreen objects are tinted blue, and hyperspace is replaced by a shield that depletes when used. The asteroids rotate, and new "killer satellite" enemies break into smaller ships that home in on the player's position.<ref name="RetroGamerAsteroids"/> The arcade machine's monitor displays vector graphics overlaying a holographic backdrop.<ref>{{cite book |last=Kohler |first=Chris |publisher=O'Reilly Media |title=Retro Gaming Hacks |year=2005 |chapter=Chapter 3, Playing Arcade Games on Your Computer |edition=1st |isbn=0-596-00917-8}}</ref> The game is more difficult than the original and enables saucers to shoot across the screen boundary, eliminating the lurking strategy for high scores in the original.

''[[Space Duel]]'', released in arcades in 1982, replaces the rocks with colorful geometric shapes and adds cooperative two-player gameplay.

1987's ''[[Blasteroids]]'' includes power-ups, ship morphing, branching levels, bosses, and the ability to dock ships in multiplayer for added firepower.<ref name="RetroGamerAsteroids"/> ''Blasteroids'' uses raster graphics instead of vectors.