Nucleon is a thrilling HTML5 arcade experience where you become a scientist splitting atoms and unleashing true neon chaos.
The game brilliantly blends platforming, shooting, and puzzle mechanics: fire your laser beam at atoms like Kr, Ar, Ne, He, and H, breaking them into smaller particles. But beware of U-235!
The core mechanic is based on fission: large atoms (such as krypton) split into two smaller ones (argon), while unstable atoms from level 4 onward split into four at once.
You’ll face 20 levels with steadily increasing difficulty:
timers speed up atoms, sudden gusts of wind alter trajectories, platforms block beams and particles, and a lever lets you lock barriers into position.
Every 3–8 seconds, boosters drop as isotope canisters:
Time Stretch, Triple Beam, Jetpack, Evaporation, plus 5 more bonuses — 9 power-ups total for smart tactical play.
Two modes, full two-player co-op, and smooth touch controls for mobile devices.
Player 1 (P1):
A / D — move left / right
W — shoot laser upward.
Player 2 (P2):
← / → — move left / right
↑ / Space — shoot laser upward.
General:
P or ESC — pause (pause menu: resume, level select, main menu)
Arrow keys / Enter — menu navigation (level select, encyclopedia)
Mouse / Touch — click menu buttons; on mobile — on-screen controls (◀ ▶ ▲ ❚❚ for movement, shooting, and pause)