Platform 10 2023

My Save State is where you keep a history of the games you play.

Every train carriage in Sydney is given a 4 digit long carriage number.
Back in the day, me and some mates of mine had a game where you'd have to take those numbers and make 10 out of em; using whatever math function you could think of. 5290? (9x0)+(5x2) = 10, Easy.