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Chemistry
stacky block

Hi chemist! I throw down 3–5 carbon organic molecules. Move, rotate and stack them so you fill a whole row and clear it.

Watch the Next panel and my visual molecule callout, then build the biggest bubbly chemistry tower you can.

Keyboard: ← → move · ↑ rotate · ↓ soft drop · Space hard drop · 1/2/3 power-ups · P pause · M mute
About this game

Stacky Block is a free browser-based organic chemistry puzzle game. Build complete rows from 3–5 carbon molecule blocks, identify functional groups and compete on the Chemisode Games global leaderboard.

Chemistrystacky block

⭐ Stack the molecules!

Molecule Tower

Fill every space in a row to clear it.
Incoming:
molecule block

QUICK CONTROLS

← →Move
↑Rotate
↓Soft drop
SpaceHard drop
1Flask blast
2Radio ooze
3Collapse
PPause
CHEMISTRY STACKY BLOCK
Now: — · Next: —
Score 0
MoveRotateSoft dropMoveHard drop