Some folk on YouTube played a game like this (Snake) in real life with the South Korean rail network. It's Jet Lag: The Game - a great show, most seasons are different games. I think the one where they played Snake is one of their more complex seasons - they also play Hide and Seek and Tag across continents, and games like that.

https://www.youtube.com/playlist?list=PLB7ZcpBcwdC4ZwbTbCqIC...