Bond Burst
Match. Bond. Burst.
Real chemistry, every move.
No download · No sign-up · Saves your progress automatically
A match-3 game that actually knows chemistry
You've played a matching puzzle before: swap two tiles, line up three, watch them pop. Bond Burst starts there — and then does something almost no other puzzle game does. The tiles aren't candies or jewels. They're elements. You start with hydrogen, oxygen, carbon, sodium and chlorine, and by the end of the trail you're handling iron, silicon, magnesium, sulfur, copper, silver, mercury, platinum and gold — twenty-six in all, including the stubbornly unreactive noble gases.
And elements don't just disappear when you match them. They react.
Clear a group of hydrogen while it's touching only oxygen and you don't simply score points — you make water, and the splash washes the oxygen away. Match carbon beside oxygen and the carbon dioxide rises, dragging the tile above it along. Match sodium beside chlorine and the NaCl reaction crystallises that chlorine into more sodium — fuel for your next chain.
Every one of those reactions is real, and the equations printed on the combo banners are balanced. You are, without especially trying, learning what bonds with what.
The reactions you'll trigger
Match an element while it's touching the right partner, and chemistry happens. There are 49 reactions in the game — here are the first six you'll meet, with quartz, brass, black powder, tarnish and quicklime waiting further down the trail.
| Reaction | Trigger | What happens on the board |
|---|---|---|
| H₂O Water | Hydrogen match touching oxygen | The splash washes the oxygen away |
| CO₂ Carbon dioxide | Carbon match touching oxygen | Gas rises, taking the tile above each oxygen |
| NaCl Rock salt | Sodium match touching chlorine | Crystallises chlorine into sodium — chain fuel |
| HCl Hydrochloric acid | Hydrogen match touching chlorine | Acid drips down, eating the tile beneath |
| CH₄ Methane | Carbon match touching hydrogen | Ignites everything around one hydrogen |
| Fe₂O₃ Rust | Iron match touching oxygen | Corrosion streaks vertically through the board |
If a match is touching more than one partner at once, only the most energetic reaction fires — so the same handful of elements keeps surprising you.
Helium and neon are inert — they never bond with anything, exactly like in real life. The game pays you double for them instead.
How to play
Swipe or tap two neighbouring tiles to swap them. Three or more in a line clears them.
Watch what your match is touching. Landing a match beside the right partner element is what fires a reaction — and reactions are worth far more than a plain clear.
Match more than three to forge a special piece. Match beside ore to crack it. Hit the level's objectives before your moves run out.
Swap two specials into each other for a combined blast — and if both carry elements, the pair reacts by real chemistry on top of it.
Special pieces
Discharges along its axis, clearing the whole row or column.
A 3×3 detonation centred on the piece.
Swap it with any tile to vaporise every element of that kind.
Shatters outward along both diagonals. A Bond Burst original.
For parents and teachers
It's a game first. But the chemistry is based on reality.
- ✓The same pair always makes the same thing. Na + Cl always gives NaCl, H + O always gives H₂O, etc.
- ✓Noble gases don't bond. Helium and neon refuse, every time — a nice way into why.
- ✓Reactions need reactants. Nothing fires unless the partner is actually touching.
- ✓Formulas stop looking like code. H₂O, CO₂, NaCl and CH₄ show up from level one.
Will anyone learn from it? Maybe. Will they have fun? Absolutely!
Questions
Is it really free?
Yes. No purchases, no accounts, no paywall at level 10.
Do I need to download anything?
No. It runs in your browser on phones, tablets, and computers.
Will my progress be saved?
Yes — stars and unlocked levels are stored in your own browser. Clearing your browser data will reset it, and progress doesn't follow you to a different device.
What age is it for?
Everyone. It's a full game — 340 levels, 39 worlds, boss fights and all. Younger players just match and blast. Older ones start spotting the chemistry. Neither needs to know any of it to win.
Is the chemistry accurate?
Where it counts, yes. Set magnesium alight and water makes it worse, not better — that's a real class-D metal fire, and the game says so out loud. The reactions are real and the equations on the combo banners are balanced. Board effects are dramatised for play: real rust is a good deal slower than ours.
Ready to make some water?
Level one takes about two minutes. Fair warning: level two is where it gets its hooks in.
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