The ability to instruct a train to leave immediately or delay its departure is a nice touch that complements the track design/switch management mechanics well.
Also, not sure if this is a bug or a limitation of the demo, but after completing the "Stripey fields" and "Double fence" levels, no additional levels were unlocked.
![](https://img.itch.zone/aW1nLzM1MTQ2MzcucG5n/original/9pN%2Bua.png)
Regardless, looking forward to the release of the full version!