Reactory
Chemistry Lab · Merge atoms, balance reactions
The neighborhood Kitchen Lab has been closed for years. Professor Proton has the keys. Merge atoms, run real reactions and bring the lab back to life, one element at a time. Chemistry for everyone, at your own pace.
2H2 + O2 → 2H2O
H 4 = 4 · O 2 = 2 · balanced
How it plays
Tap
Tap a source on your glass workbench and an atom rolls out: hydrogen, oxygen, carbon, nitrogen and more.
Merge
Drag two identical items together. Atoms pair up only where that is real chemistry (H₂, O₂, N₂); the same substance merges into a bigger amount, from test tube to flask to gas cylinder.
React
Put the right ingredients in a station and watch a real, balanced reaction: 2H₂ + O₂ → 2H₂O. Atoms are never lost, only rearranged.
Orders from quirky characters
Mrs. Droplet waters everything, Chef Maya wants carbon dioxide for her dough, Master Flint keeps the burner in check. Deliver their orders to earn Coins and stars.
Four places to restore
Bring a Kitchen Lab, an Ocean Station, a Volcano Observatory and an orbiting Quantum Space Base back to life, one task at a time.
A Bench that grows
A 7×9 glass lab bench. Fogged cells clear as you merge next to them, and outputs wait inside the station instead of getting lost.
Fair Energy
Only tapping a source uses energy. Merging, reactions and deliveries are always free.
Offline
The whole game works without a connection. No account, no login.
Glowing lab glass
Glass atoms with glowing electron shells, bubbling beakers and calm reaction effects, made for portrait play.
Real chemistry, at your own pace
The periodic table is your map
Each element you make for the first time lights up its box. 33 elements to discover across four worlds.
Chemistry Atlas
Element and compound cards explain what happens and why, in plain words, in English and Turkish.
Optional quizzes
Three short questions at the end of each world. Right answers earn Photons; wrong answers cost nothing.
Fair by design
- No forced ads. A video plays only when you tap to watch one, and the reward is shown first.
- No subscription and no paid random boxes.
- An optional one-time Founder’s Lab pack adds comfort and a cosmetic bench theme. It never locks content: everything can be played for free.
- Coins are earned by playing; Photons can also be bought. Store prices are shown in your local currency.
- No account needed, and no internet connection either.
Questions? Visit support · Privacy