* [[S-DOS]] ([[STS]])
* [[SymDOS]] ([[Flynn]])
* [[UniDOS]] ([[Futurs']])
* [[VDOS]] ([[Vortex Computersysteme|Vortex]])
* [[X-DDOS]]
== IDE operating systems ==
* [http://www.cpcwiki.eu/forum/applications/cubeios-fat16fat32-rom-for-the-cpc's-with-xmass CubeIOS (FAT16+FAT32-IDE-OS ROM for the Amstrad CPC's with XMASS)]
* [[UniDOS]] ([[Futurs']])
== Graphical user interfaces / Shells ==
* [[CBM]] ([[TFM]]) (20112014-2024)
* [[CEUS Desktop 2.0]] ([[Prodatron]]) (1990)
* [[Desk-Royal]] ([[Crusader Software]]) (1989)