In the advanced settings you can disable plane usage for the bots, and then restrain yourself from using them. This forces you to build an efficient network usi

In the advanced settings you can disable plane usage for the bots, and then restrain yourself from using them. This forces you to build an efficient network using trains, trucks and ships. I recommend in general poking through the advanced settings to see what else could increase the difficulty. Also, early stage I try to optimise for high profits, late stage my mission focuses on the company performance score: there’s a maximum score of 1,000 which is actually quite tricky to achieve. Aligning your goal to get as high as you can faster than the bots is definitely a challenge.