[myghalloween]

I'm afraid the support for nplayers in LibretroDB is very poor, you can have a look here. I will not add a nplayers metadata field until I find a reliable source of information for the offline scraper (apart from GameDBInfo), sorry

Advanced MAME Launcher will support nplayers natively

I know for AML, but I'm not playing arcade (or not a lot)

I confess that I do not understand necessarily how the scrapper will seek information... but, from GameDB, I'm pretty sure you can scrap nplayers. Then it possible to add a field in AEL, export to nfo for the offline scrap ?

May be that I do not understand the scrapper functioning