Cambell's Oddity Box - Bohr Builder

Particle construction

Cambell's Oddity Box - Bohr Builder is a chemistry-building game for PC and DLC for Cambell’s Oddity Box. Aim a particle cannon in a 2D workspace and fire protons, neutrons, and electrons to assemble atoms, isotopes, and ions, then combine the right species to make chemical products.

Particles travel through the workspace and can bounce off atoms if your aim is off. Launch speed is fixed, so you control where particles go by aiming. Protons change an atom’s element, neutrons its isotope, and electrons its charge. You can inspect an atom to see its particle counts, mass number, and charge.