Downloaded Rail Road Tycoon Deluxe- couldn’t for the life of me recall how to play, downloaded manual, looks like I need a number pad ! MBP2016 no dice !
Randall McRoberts Probably a usb keyboard would work. I keep one around for such things. 
Dr. Adam Procter @rmcrob good thinking i have a lot of those lying around, but actually most of the time I use monitor with DAS Keyboard (but am away from home atm)