Bond Forge

Level 1 · Spark · linear molecules

Answer right: you draw the bond.
Miss: you lose your turn. Opponent picks any open bond as a free bonus (no question), then plays their normal turn (two bonds in a row).
Close a box: score +1 AND go again (chain rule). Fires for bonus draws too.
Strategy: drawing a box's 3rd side is a bet: if you miss anywhere on your next turn, opponent picks the 4th side as their free bonus and claims the box.

You0

Cobalt0

Your turn. Click a bond to attempt; answer correctly to draw it.

What is Bond Forge?

Bond Forge is a free chemistry game where you build molecules on a dots-and-bonds grid. You claim a bond by answering a chemistry question pitched at your level, and when your bonds close a box, you forge the molecule inside it. Play solo against the computer or head-to-head with a friend in the same match. No sign-up and no download.

The questions climb through five levels sorted by molecular geometry, from straight chains up to branching shapes, so the chemistry gets harder as your recall gets faster. Every right answer doubles as practice: you are drilling element names, symbols, and bonding while you play, not after.

Curious about the elements behind the questions? Explore the interactive periodic table. Full access opens every element and saves your progress as you go — see what’s included for $59 a year.

How to play

What is Bond Forge?