- Home: http://www.newbreedsoftware.com/defendguin/
- Inspiration: Defender
- State: mature, inactive since 2023
- Download: http://www.newbreedsoftware.com/defendguin/download/, https://tuxpaint.org/ftp/unix/x/defendguin/
- Platform: Windows, Linux
- Keyword: arcade, remake, skill
- Code language: C
- Code license: GPL-2.0