Train lockedCheck TrainMap
Big Walk Train Guide
Unlock the Train through the Blue route, find out why it is not moving, learn how the railway works, and pick up Big Ride on the way.
- 🚆 Island railway
- 🔑 Blue route unlock
- 🔧 Not-working checker
- 🗺 Stops & route
- 🏆 Big Ride
Why Isn't My Train Working?How to Unlock the TrainShow Train on Map
The Train is one of three island transport systems, alongside the Chairlift and the Tunnels. Big Walk Transportation Guide
Train statusLocked
- Blue Tower rewardsNot yet
- Blue Key cutters0 / 5 cutters
- Key placedNot yet
- Railway runningNot yet
NEXT ACTION
Return the five rewards at Blue Tower, then release the key.
What's Wrong With Your Train?
Unlock chain
- 1Return five rewards at Blue Tower
- 2Release the Blue Key
- 3Take the key through all five cutters
- 4Place the finished key at the Train
- 5The railway starts running
The Train unlocks at the end of this chain. Finishing Blue Tower on its own stops you one step earlier, at the key.
Your Train ticks are kept on this device, so the walkthrough and the 100% checklist see the same progress.
Train Status Checker
Four questions. The first one that is not done yet is the only thing worth doing next.
Have you returned five rewards at Blue Tower?Not yet
Did you take the Blue Key through all five cutters?0 / 5 cutters
Tap a line you have already done. Progress is kept on this device.
The unlock steps and the stop names here were checked against the game in Sep 2026.
NEXT ACTION
Finish the Blue Tower reward step.
The Blue Key is still held at its lookout, so nothing is on its way to the Train yet. Five challenge rewards bring it back to the tower.
Your next action
Return the five rewards at Blue Tower, then release the key.
Why Isn't My Train Moving?
Four things stop this Train, and only the first three are something you can fix on the Blue route.
Fewer than five Blue Tower rewards
Likely answer
The key has not been released, so the route has not started.
Your next action
Return the missing challenge rewards at Blue Tower.
The Blue Key is not finished
Likely answer
Some of the five cutters are still ahead of the key.
Your next action
Finish the next cutter, then check the Train again.
The finished key is not at the Train
Likely answer
All five cutters are done, but the key never reached the Train.
Your next action
Carry the finished Blue Key to the Train and place it.
Blue is done and the Train has not started
Likely answer
This is no longer progression. The railway has not switched to its running state.
Your next action
Treat it as a Train-side problem and check the railway state.
Progression problem or railway problem?
Blame the Blue route
A missing reward, an unfinished key or a key you are still carrying. Fix it on the Blue Tower route, then come back to the Train.
Blame the railway
The finished key is at the Train, so the Blue route is not your problem any more. Sort the Train out instead of redoing Blue Tower.
You placed the key and nothing happened
Placing the key is the last Blue step, so your side of the chain is finished. If the railway is still silent, it is the Train that has not started, not the key that failed.
Your next action
Check the railway state, then try the Train again.
What's Wrong With Your Train?
Pick the line that sounds like you, and the answer follows from your own state instead of a general checklist.
Your situation
I haven't seen any Train move
Likely answer
Then the route has not started.
A Train no one has seen moving is almost always an untouched Blue Tower. Start with the rewards and the route follows.
Your next action
Open the Blue Tower route and start at the rewards.
How to Unlock the Train
The unlock runs from the Blue Tower rewards to a moving railway. In order:
- 1
Return five challenge rewards at Blue Tower.
- 2
Release the Blue Key at its lookout.
- 3
Take the key through all five cutters.
Blue Cutter 1Blue Cutter 2Blue Cutter 3Blue Cutter 4Blue Cutter 5
- 4
Carry the finished key to the Train and place it.
- 5
The railway starts running and the Train can be boarded.
Blue Tube Lookout → BigKeyComplete → Train
The Blue Key is the one that ends at the Train. The other four keys end somewhere else, so a finished Red, Green or Yellow key does not move this railway.
Where Is the Train?
The railway itself, the place where the key goes and the stops are three different things.
Where the key goes
The finished Blue Key goes in at the Train itself, at the end of the Blue route. That is the last Blue step, and it is the one the checker watches.
The stops
Six stop names are mapped so far. Each one is its own place on the island rather than a menu entry.
How to Use the Train
Boarding, riding and stopping are three different things, and only the first one needs you to be in the right place.
Getting on
Stand at one of the mapped stops and wait. The Train comes to you, so there is no destination to choose and no button to press first.
Riding
Once you are on, the Train carries you along the railway. Time on board is what Big Ride watches, so a proper ride is enough.
Slowing and stopping
A lever on board slows the Train or holds it in place while you step off. It is a ride control, not part of unlocking the railway.
Player-tested routes describe a continuous loop rather than a fast-travel menu, so treat the Train as a moving part of the world you step onto.
What Is the Train Useful For?
The railway changes how you cross the island, not what you have unlocked.
- Crossing the island without the walk
- Regrouping with other players who are somewhere else
- Getting back to an earlier region quickly
- Reaching challenges that sit beside a stop
- Being on board long enough for Big Ride
Does the Train Stop at Stations?
Yes, but not by itself.
Player-tested routes describe a Train that keeps working its way around the loop instead of pulling in and waiting at every stop. If it rolls past you, that is the normal behaviour rather than a fault.
The onboard lever is how you bring it to a stop. Nothing on the platform does that for you.
Known Train Stations
Six stop names are mapped so far. Each one is a real place you can wait at.
What's been mapped so far
- Green DiffuserTrain stop
- Ring RoomTrain stop
- South Valley BeachTrain stop
- Sports ValleyTrain stop
- Trap RoomTrain stop
- Upper HubTrain stop
The stops are not numbered here, because no running order is confirmed. Use this list to recognise a stop you have found, not to plan a route between them.
Two of these names also belong to challenges elsewhere on the island. The Train stop and the puzzle are different things, and a search for the station gives you the stop.
Open the Train Stops GuideShow the Train on Map
The Train is mapped as one landmark, so the map opens on the railway rather than on individual platform pins.
Where Does the Train Go?
The railway runs as a loop around the island.
Six stop names are mapped so far, but the order they come in, how long a full circuit takes and which way round it runs are all still open. No line order is drawn until the order is settled.
Not confirmed yet — feedback welcome.
Big Ride Achievement
Big Ride is a riding achievement. Unlocking the Train is not the same as earning it.
🏆 Requirement
Use an operational Train and trigger its ride condition.
Open Big Ride Achievement GuideWhat Should I Do After Unlocking the Train?
The Train does not hand you a next area. It opens movement, so the route that matters next is whichever one your own save still has open.
What Should I Do Next?That tool reads your saved progression and names one objective instead of sending everyone to the same place.
Big Walk Train FAQ
How do you unlock the Train in Big Walk?
Return five challenge rewards at Blue Tower, release the Blue Key, take it through all five cutters, then carry the finished key to the Train and place it. The railway starts running at that point. Train unlock steps
Why isn't my Train moving?
Work down four checks: five rewards returned, all five cutters done, the finished key placed at the Train, and the railway up and running. The first one that is still open is the only thing worth doing next. Train troubleshooter
I finished Blue Tower but the Train still will not start
Blue Tower rewards are only the first part. The released key still has to pass through all five cutters and then be carried to the Train, so a cleared tower on its own leaves the route half done. Big Key guide
I placed the key and nothing happened
Placing the key is the last Blue step, so the route is not what is holding you. If the railway stays silent after that, it is the Train that has not started, and repeating Blue Tower will not change it. Railway check
How many Train stations are there?
Six stop names are mapped so far. More stops may exist on the loop, so six is not treated as the final total. Stop list
Where does the Train go?
Around the island as a loop. The six mapped names, the order they come in and the direction of travel are not confirmed yet, so no line order is drawn here. Route notes
Does the Train stop at stations?
Player-tested routes describe a Train that keeps circling instead of waiting at every stop, so it can pass you by. A lever on board is what slows it or holds it. How stopping works
How do I board the Train?
Stand at a mapped stop and wait for the Train to reach you. There is no destination list to choose from, so the boarding step happens in the world rather than in a menu. Boarding and riding
Does the Train unlock the Blue Area?
No, and the direction is the other way round: the Blue Key route is what unlocks the Train. Its effect is travel around the island, not opening Blue. What Next tool
How do I get Big Ride?
Ride an operational Train. Big Ride comes from the ride itself, so an unlocked railway you never boarded does not award it. Big Ride achievement
Does High Button unlock the Train?
No. The Train comes from the Blue route, and a finished High Button does not move the key or the railway along. Where the Train sits
Why are Ring Room and Trap Room shown as both puzzles and stations?
Two different things share a name. The Train stop and the challenge are separate, and a search for the station gives you the stop rather than the puzzle. Stop list
Continue Your Journey
Blue Tower
The reward step and the key route that ends at the Train
Transportation
All three transport systems and which one is still locked
Big Key
The five-cutter route model this Train sits at the end of
Train Stops
Every stop name mapped so far in one list
Big Ride Achievement
The riding achievement and what triggers it
Interactive Map
Open the transport layer and locate the railway