Street 05 › Arcade & Skill Lab › Chain Reaction
⚛️ Chain Reaction
Quantum particle super-collider. Place 1 single trigger spark to initiate cascading atomic blast rings and meet the annihilation stage quota.
Free to play in your browser: no download and no account needed. The game opens on this page.
- Type
- Puzzle
- Difficulty
- Hard
- Round length
- 20–40s
- Ages
- 6+
- Controls
- Tap Anywhere in Chamber to Place Initial Spark
What it practises
- Problem-solving & planning: Planning ahead, switching strategies and working out cause and effect.
- Concepts & theory: The science and maths behind the game: reflection, orbits, waves, circuits, ciphers.
Solving a puzzle quickly is not the same as understanding why it works — the debrief step covers that.
Quick lesson: Exponential growth
When every blast sets off more blasts, the count multiplies at each step. Small starts grow very fast.
Check question
Step 1 has one blast. Every blast triggers two in the next step. How many blasts happen in step 5?
- 8
- 10
- 16
- 32
Answer: 16. 1 → 2 → 4 → 8 → 16. Each step doubles, so step 5 has 2⁴ = 16.
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