SIM CITY (NES) & NESMAKER GAMES

[Recalboxer]

The lost and unreleased game of SIM CITY for NES revealed lately and I wonder why the ROM cannot be played on Recalbox.
Also people making games with NESMAKER sent me their games but the ROMS never played in Recalbox but I know people can play them on any other system.
When we will be able to play these games ?

[paradadf]

@recalboxer have you tried with all available nes cores?