Chain Reaction: Machine Puzzle
Build one clever contraption
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
One clever move. One glorious machine.
Chain Reaction is a hand-crafted physics puzzle game about building the missing piece of an elaborate chain-reaction machine — then pressing GO and watching everything you set in motion ripple across a miniature workshop.
Drop a ramp in the right spot and a steel ball rolls, dominoes topple, a trapdoor swings, a catapult fires and a bell rings on the far side of the bench. Get it wrong and you'll see exactly where the chain broke — tweak, retry, and try again in seconds.
EIGHT WORKSHOP WORLDS
• The Workbench — ramps, planks, levers and domino runs
• Clockwork House — pendulums, gears, pulleys and hammers
• Toy Lab — springs, fans, balloons, catapults and explosive confetti poppers
• Flowworks — tanks, valves, pipes, water wheels and floats
• Magnetron — magnets, polarity and electromagnets
• Spark City — batteries, wires, motors, relays and lights
• Elemental Engine — flames, steam, wax, ice and melting
• Quantum Workshop — portals, gravity fields and energy beams
256 HAND-BUILT PUZZLES
Every level is designed by hand and verified solvable, with a real solution, a fair challenge and three stars to earn: finish the machine, use as few parts as possible, and master a bonus goal.
A NEW MACHINE EVERY DAY
Daily Machines and a Weekly Challenge are generated fresh and verified solvable — come back and beat your best score.
YOUR OWN WORKSHOP
Unlock over 100 parts, collect blueprints, decorate your workshop with trophies, finishes and ball trails, and build anything you like in the Sandbox.
FAIR AND FRIENDLY
• Play offline, any time
• Hints when you want them — never required
• No energy timers, no forced waits
• Optional rewarded videos; a one-time purchase removes ads
• Colour-blind assist, large-text UI, reduced motion and full haptics control
Satisfying physics, beautiful miniature dioramas and that perfect moment when the last domino falls. Build your chain reaction.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Every world now keeps its own look all year round. Theme Weeks now dress the Daily Machine, Weekly Challenge, Sandbox and home screen instead.
The developer, Abdul Aleem Allie, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Abdul Aleem Allie
- Size
- 215.5 MB
- Category
- Puzzle
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Premium Event Pass $4.99
- Golden Hour Theme $3.99
- Tesla Coil Pack $4.99
- Crate of Sparks $14.99
- Jar of Sparks $4.99
- Handful of Sparks $1.99
- Chest of Coins $9.99
- Sack of Coins $4.99
- Pouch of Coins $0.99
- Remove Ads $3.99
- Copyright
- © 2026 Glitchy Toad Games
