Note: RaQuest requires Enterprise Architect. You cannot use RaQuest without Enterprise Architect.

• Microsoft® Windows 11, Windows 10, Windows Server 2019 or Windows Server 2016.
  • 32 bit and 64 bit operating systems supported*
• Enterprise Architect 13.0 or later version
  
  • All editions supported
  • 32 bit and 64 bit Enterprise Architect supported*
• Sparx Systems Keystore Service software version must be 1.3 or later version.

• RaQuest does not support non-Windows OS (Linux, Mac OS X, macOS).

* RaQuest is a 32 bit application, however it can be run on both 32-bit and 64-bit Windows Operating Systems and with both 32-bit and 64-bit Enterprise Architect.

Link:
Enterprise Architect's System Requirements