Orbit: Electron

You are an electron.

Orbit the nucleus, tap to jump between shells, and dodge the hostile electrons in your way. Every one you slip past adds a proton to the nucleus; start as a lone proton, build hydrogen, then helium, then carbon, and see how far up the periodic table you can climb before you decay.

One tap is all it takes. Getting good takes a while.

ENDLESS Survive as long as you can. The orbit speeds up, the gaps tighten, and new shells appear as you score. Your best run is remembered as the heaviest element you ever built.

LEVELS Thirty-six elements, hydrogen to krypton, each one a level. Capture that element's electrons and watch them settle into their real shells. Complete the atom, then keep going: every element keeps its own best score.

TUNNELLING Swap shells at the very last instant and you'll tunnel through for a bonus, with time slowing for a beat so you can savour how close that was.

Designed to be played in the gaps of your day: no accounts, no ads, no tracking, nothing to buy. Just an atom and your reflexes.