Valence Lab: Molecule Puzzle

Take atoms from cylinders and bond them into molecules!

Valence Lab is a molecule-building puzzle on a hexagonal board. Currently 151 named molecules, from water to benzene. Collect them all to complete the codex!

HOW TO PLAY 1. Tap a cylinder to place an atom. 2. Slide to a neighbor to bond. Slide again for a double or triple bond. 3. Fill every hand to complete the molecule.

Start with the tutorial. Hints are available too.

FILL THE CODEX Molecules are identified by atoms and bonds. Unnamed combinations are saved as original molecules. The codex shows how many times you made each one.

DAILY GOALS Daily missions change every day. Make varied molecules to unlock achievements. Rank up through 10 title levels.

GROW YOUR LAB Earn research points by making molecules. Unlock new atoms and skins. More atom types, more molecules to build.

RECOMMENDED FOR - Puzzle fans - Collectors who like a full set - Anyone curious about molecules

BEFORE YOU PLAY - No account needed. Progress stays on your device. - Core play works offline. Ads and purchases need a connection. - A banner ad shows at the bottom. - Optional rewarded videos give bonuses such as hints. - In-app purchases: Gold Member and Full restore. Gold Member removes ads and adds a board row. - Valence and bonding are simplified. Not every isomer, reaction, or molecular stability is reproduced. - In English and Japanese.

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