Playing Null's Brawl on seperate devices

Is it possible to play Null’s Brawl on two seperate devices?

Of course.

How, because I can’t find a way

So do you want to play only from one (same) account?

Yeah.

Just linking it to VK. Settings -> Facebook button

I tried that, but it didn’t work, it put up a link and some code, but I didn’t understand. Do I need to have the facebook app downloaded? I have only tried this on one device, not my phone. The device I checked first was a kindle. I don’t know if that helped.

That isn’t a Facebook. We just remove facebook linking and added VK. You can register an account here: VK | Welkom