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You are a robot. Reflect the ball exactly N times. Route it to the exit. Arrange the pieces, build the logic, meet your quota.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
Steam Train Fest ends
You are a robot.
Your mission is to bounce the ball. Again and again.
Reflect the ball exactly N times. Route it to the exit.
Do not think about why.
Arrange the pieces, build the logic, meet your quota.
Your job as a robot is to guide the ball launched from the blue portal into the orange portal. You cannot interfere with the ball directly — instead, place reflectors and other gimmicks to steer it toward the goal.
To clear a stage, count the ball until the number displayed at the top reaches zero.
Learn the properties of each gimmick and maximize your count as efficiently as possible. Don't worry — every time a new gimmick appears for the first time, there's a dedicated tutorial stage to introduce it. Each one is carefully crafted to ease you in :)
20+ handcrafted stages
8 unique gimmicks
Tutorial stages introduced with each new gimmick
Classic 8-bit visuals and soundtrack
Satisfying SFX for every move and ball reflection
You can't touch the ball. Whether you clear the stage or not is decided entirely before the ball starts moving. No reflexes required — just the ability to read the space and the patience to engineer the perfect chain reaction.
This game also has hidden elements. Don't give up until the very end!
Language can be changed from the in-game menu. On any stage screen, press the M key to open the menu, then select LANGUAGE to choose from English / Japanese / Korean / Chinese / Italian / Spanish / Portuguese.
Good luck!!
Lowest tracked price: €10.25 (Jul 7, 2026) · current best: €10.25.
Right now the cheapest offer for CTR is €10.25 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for CTR is €10.25 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
Create a free price alert on this page and KingsPrice will email you when CTR drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
