Atoms-World
Learn molecules by doing real physics.
Three chemistry games for iPhone and iPad. Every frame is computed live on your device by SO3LR, a machine-learned force field from current research — real physics, not animation.
Download on theApp StoreFree · no ads · no account · iOS 18 or later
The games
Fix the Molecule
A real molecule was sabotaged with intruder atoms. Pull them out with your finger while the force field relaxes everything around them, then learn what the molecule is used for.
1 player · puzzleBinding Dimer Duel
Two players, one device. Dock a small molecule onto a bigger one, lock the pose in and let the pair relax. The stronger binding energy wins.
2 players · hot-seatSounds of Nature
Play music in any app or on a speaker nearby and watch a molecule dance to it: every vibration the force field predicts, driven by what the microphone hears.
explore · musicAt a glance
- 490 molecules in 37 families — water and caffeine, amino acids, sugars, fuels, dyes…
- 115 medicines, each with a note on what it treats
- Energies, forces and vibrational spectra computed on the device
- Works offline
- No account, no ads, no tracking, no data collected
- English, French, German and Spanish
- iPhone and iPad, portrait and landscape
- Free
The science
The molecules move under SO3LR, a machine-learned force field that combines a neural network trained on quantum-chemical data with long-range electrostatics and dispersion. It was developed in the group of Alexandre Tkatchenko at the University of Luxembourg and runs here on your device through Core ML.
A. Kabylda, J. T. Frank, S. Suárez-Dou, A. Khabibrakhmanov, L. Medrano Sandonas, O. T. Unke, S. Chmiela, K.-R. Müller, A. Tkatchenko, J. Am. Chem. Soc. 147, 33723 (2025) — article · code. Molecule data from the OpenChemistry molecules set and e-Drug3D; see the open-source notices.
Atoms-World is an educational tool. Its results come from an approximate model and are not meant for laboratory, medical or safety decisions.
Questions, press, contact
Help and frequently asked questions are on the support page. Journalists and teachers find the icon, screenshots and a fact sheet in the press kit. Write to contact@atoms-world.online.