20th anniversary, a sequel to Gunbuster, Diebuster (or Gunbuster 2), was released as an OVA. The sequel features new characters and mecha but retains the format and many of the concepts of the original series.

The anime has had several releases on home video since it was first released. It received an English dub in 2022. It has also had soundtrack albums, a manga series, and merchandise such as toys, model kits,