I'm gonna try to beat this. I'm working on a test track in creative, 4-tall ribbon world (to keep the save a reasonable size). My goal is to have track right to the edge, at a 1 million tiles, and I'm currently at 600k. Extremely boring prep work, but I'm looking forward to some cool train science w...

I'm considering undertaking a new-to-me challenge in the form of a 10-tall ribbon world.
Has anyone here already done this? If so, did you encounter any serious and unforeseen roadblocks?