! Latest release
! Plus emulation
! License
! Also emulates
! License
|-
| Acorn RISC OS
| Jul 28, 1996
| ❌
| Freeware
| -
| Freeware
|-
| Acorn RISC OS
| Mar 22, 2016
| ❌
| Open source
| -
| Open source
|-
| AmigaOS m68k
| Apr, 2002
| ✅
| Open source
| -
| Open source
|-
| AmigaOS m68k
| Jan 21, 1998
| ❌
| Open source
| -
| Open source
|-
| AmigaOS m68k
| Feb 24, 1995
| ❌
| Open source
| -
| Open source
|-
| AmigaOS m68k
| Sep 15, 1996
| ❌
| Open source
| -
| Open source
|-
| BlackBerry OS
| Jul 15, 2013
| ❌
| Commercial💲
| -
| Commercial💲
|-
| Classic Mac OS
| Oct 6, 1997
| ❌
| Shareware💲
| -
| Shareware💲
|-
| DOS
| Sep 8, 2018
| ✅
| Open source
| [[KC Compact]], [[Aleste 520EX]] & lots of other computer systems
| Open source
|-
| DOS
| Apr 15, 2000
| ❌
| Freeware
| -
| Freeware
|-
| DOS
| Jul 7, 2004
| ❌
| Open source
| -
| Open source
|-
| DOS
| Jun 2, 2011
| ❌
| Freeware
| -
| Freeware
|-
| DOS
| Jul 7, 1998
| ❌
| -
| Freeware
| -
|-
| DOS
| Apr 21, 1997
| ❌
| Open source
| -
| Open source
|-
| DOS
| Nov 2, 2000
| ✅
| Freeware
| -
| Freeware
|-
| DOS
| Feb 3, 1998
| ❌
| Open source
| -
| Open source
|-
| DOS
| Mar 23, 1995
| ❌
| Freeware
| -
| Freeware
|-
| DOS
| 1990
| ❌
| Commercial💲
| -
| Commercial💲
|-
| DOS
| Oct 24, 1998
| ❌
| Freeware
| -
| Freeware
|-
| EXOS
| Jan 11, 2013
| ❌
| Open source
| -
| Open source
|-
| Maemo
| Apr 27, 2010
| ❌
| Open source
| -
| Open source
|-
| MSX-DOS
| Dec 17, 2018
| ❌
| Freeware
| -
| Freeware
|-
| Palm OS
| Jun 28, 2011
| ❌
| Open source
| -
| Open source
|-
| Palm OS
| Dec 4, 2007
| ❌
| Freeware
| -
| Freeware
|-
| Pocket PC
| Aug 19, 2007
| ❌
| Freeware
| -
| Freeware
|-
| SunOS
| Feb 22, 1997
| ❌
| Shareware💲
| -
| Shareware💲
|-
| Symbian
| Feb 21, 2006
| ❌
| Open source
| -
| Open source
|-
| Windows 9x
| Jan 22, 2004
| ❌
| Open source
| -
| Open source
|-
| Windows 9x
| Jan 11, 2000
| ✅
| Freeware
| [[ZX Spectrum]], [[ZX80/81]], [[Enterprise]], [[Jupiter ACE]]
| Freeware
|-
| Unreleased?
| Nov 12, 2014
| ❌
| Unreleased?
| -
| Unreleased?
|}