SukkoPera designed a C16 RAM Expansion cartridge
https://github.com/SukkoPera/OpenC16RamExpansion
It currently does not work on every Commodore 16.
For example it may show the 60Kb RAM available when plugged in, but when you try and run a program/game which requires 64Kb it does not recognise the 64Kb.Those games/programs are only detecting 16Kb RAM (on the C16 motherboard). For example: Slipstream http://plus4world.powweb.com/software/slipstream https://psytronik.itch.io/slipstream
@bilherd
Could you have a look at the OpenC16RamExpansion schematic https://github.com/SukkoPera/OpenC16RamExpansion/blob/master/doc/schemat...
Thanks