Big Walk Blue Tower Guide: Unlock the Train
Complete Blue Tower, finish its five key cutters and activate the train network for easier regrouping across the island.
Reach Blue Tower
From the Red region, the Blue side lies across the island. If Green Tower is complete, the chairlift offers a faster approach. Green is helpful but not required before Blue.
Activate the railway
- Complete enough accessible challenges to gather five rewards.
- Place all five at Blue Tower and collect the released key.
- Find all five Blue key-shaping machines; partial shaping will not start the system.
- Use the completed key at the train activation point.
- Check a station schedule, wait for a carriage and board it to earn Big Ride.
The train is not moving
Do not treat the station controls as a standalone puzzle. Recheck the Blue key: all rewards must be submitted and every cutter must be used. A hidden or overlooked cutter is the usual cause of an inactive network.
Use the railway efficiently
Station clocks indicate arrivals, so do not scatter while waiting. Name the destination before boarding and leave one player responsible for confirming that the whole group entered the same carriage. If someone misses it, meet at the agreed station rather than jumping off at random.
The first successful ride should trigger Big Ride. If the network runs but the achievement does not appear, remain aboard a moving train for a complete departure and wait for the platform notification before ending the session.
Sources checked
- GAMES.GG train guide — Blue activation sequence and station use
- Big Walk walkthrough route — train progression checkpoint