AtomForge: the free chemistry game from atoms to reactions
AtomForge builds chemistry a level at a time, covering the first 20 elements in real depth. Learners work from subatomic particles and electron shells through ions, ionic and covalent bonds, the periodic table, balancing equations, and acids and bases. Aimed at middle and high school, it's free, with no ads and no tracking of your kids.
What kids learn
- Atomic structure: protons, neutrons, electrons, and mass number
- Electron-shell filling (2, 8, 8) and finding valence electrons
- Ions, isotopes, and naming, plus the octet rule
- Ionic and covalent bonding and balancing chemical formulas
- How the periodic table is organized by groups, periods, and reactivity
- Balancing equations, reaction types, the pH scale, and polyatomic ions
How it works
Each level is an ordered set of multiple-choice steps with instant feedback and a teaching note. Correct answers advance an animated stage — an atom being forged, a formula being balanced — so it feels like constructing the molecule. Answer choices include realistic distractors, and stars reflect first-try accuracy.
A grown-up signs in once and adds a player for each kid, so AtomForge's stars and progress save to your account and follow you to any device.
Ready to play AtomForge?
It's free, with no ads and no tracking of your kids. Ages 11–16.