Emulator support for a CPC cartridge slot is as follows:
*[[Dandanator]] brings a non-standard physical cartridge port and a very exotic non-standard memory mapper that spies on Z80 instructions. It is emulated by ACE, Retro Virtual Machine, CPCEC, ZEsarUX
*[[Plus2CPC]] and [[Play2CPC]] bring a standard physical Plus cartridge port to the CPC. They are It is not supported by emulators*[[Play2CPC]] is an evolution of the [[Plus2CPC]], adding RMR2 Plus mapping, CRTC cursor raster interrupt and a 3-channel soundchip compatible with the [[PlayCity]] spec. It is emulated by ACE
*[[M4 Board]] simulates a standard Plus cartridge port on the CPC and handles standard CPR files. M4 Board is emulated by CPCemu
Why is does the Dandanator winning over standard Plus cartridge solutions like have so much support from emulators, despite it not respecting the Plus2CPCexisting Amstrad standards? It's because some CPC games (The Sword of Ianna, Los Amores de Brunilda, ...) are released exclusively for it. So emulators are then forced to support it.
The situation would be different if those games were converted to standard CPR format by the community.