Watch “R-Naught card game tutorial video,” a how-to-play guide for R-Naught from Jeremiah Donaldson on BoardGameVideo.
Description provided by Jeremiah Donaldson on YouTube:

2020Jeremiah Donaldson
About R-Naught, from BoardGameGeek:
Designer
Jeremiah Donaldson
Publisher
Ephiroll Productions
Categories
Mechanics