itch.io

Neat puzzles. Most of the puzzles are about using the preset rails as part of fulfilling the requirements, which basically shows where you need to place your rails. If you expand on this, it'd be interesting to see more puzzles like level 5, where you need to fulfill the requirements through just the rails you place. You could even have preset rails that make it harder to fulfill the requirements, or force the track to go through all rails and have preset rails that pose interesting problems.