What the Blue route unlocks
Completing the Blue Tower route activates the train loop. Treat the train beginning to move as the clear completion signal.
Progression chain
- Fill the Blue Tower receiver with five puzzle rewards.
- Collect the blank Blue key.
- Run it through five cutter or keyhole stations.
- Take the fully shaped key to the final Train lock.
- Insert it and wait for the stationary train to begin its loop.
Using the train
The activated train normally runs a clockwise, non-stop island loop. Station information and carriage controls can help with timing. Boarding a moving carriage is tied to the public “Big Ride” achievement, but it is not an extra unlock step.

