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 Diffuser火车站点
- Ring Room火车站点
- South Valley Beach火车站点
- Sports Valley火车站点
- Trap Room火车站点
- Upper Hub火车站点
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.
火车开往哪里？
铁路绕着岛屿形成一个环线。
目前已经确认了六个站点的名称，但它们的先后顺序、跑完一整圈要多久，以及行驶的方向都还没有定论。在顺序确定之前，不会画出线路顺序。
尚未确认——欢迎反馈。
Big Ride Achievement
Big Ride is a riding achievement. Unlocking the Train is not the same as earning it.
What 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
在 Big Walk 中如何解锁火车？
在蓝塔归还五个挑战奖励，释放蓝钥匙，让它通过全部五台切割机，然后把成品钥匙带到火车那里放好。此时铁路开始运行。 火车解锁步骤
为什么我的火车不动？
按四项检查逐一排查：五个奖励已归还、五台切割机全部完成、成品钥匙已放在火车那里、铁路已经运行。第一个仍未完成的，就是你接下来唯一值得做的事。 火车故障排查
我通关了蓝塔，但火车还是不启动
蓝塔奖励只是第一部分。已释放的钥匙还必须通过全部五台切割机，再被带到火车那里，所以光是通关蓝塔，路线只完成了一半。 Big Key 攻略
我放好了钥匙，但什么也没发生
放置钥匙是蓝色路线的最后一步，所以拖住你的不是路线。如果之后铁路仍然毫无动静，那是火车没有启动，重复通关蓝塔也改变不了。 铁路检查
火车有多少个车站？
目前已标出六个站点的名称。环线上可能还有更多站点，所以不把六个当作最终总数。 站点列表
火车开往哪里？
绕着全岛转一圈的环线。六个已标出的名称、它们出现的顺序以及行驶方向尚未确认，所以这里没有画出线路顺序。 路线备注
火车会在车站停靠吗？
玩家实测的路线显示，这列火车会不停绕圈，而不是在每个站点等候，所以它可能从你面前驶过。让它减速或停住的是车上的拉杆。 停车机制
我该怎么上火车？
站在一个已标出的站点上，等火车开到你面前。这里没有目的地列表可选，所以上车这一步发生在世界里，而不是菜单里。 上车与乘坐
火车会解锁蓝色区域吗？
不会，方向正好相反：是蓝钥匙路线解锁了火车。它的作用是在岛上移动，而不是打开蓝色区域。 “接下来做什么”工具
我怎样才能拿到“大驾远行”?
乘坐一列正在运行的火车。“大驾远行”来自乘车本身，所以解锁了铁路却从没上过车，是拿不到的。 大驾远行成就
High Button 能解锁火车吗？
不会。火车来自蓝色路线，完成 High Button 并不会推进钥匙或铁路。 火车停在哪里
为什么 Ring Room 和 Trap Room 既显示为谜题又显示为车站？
两件不同的事共用了一个名字。火车站点和挑战是分开的，搜索该车站会得到站点，而不是谜题。 站点列表
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