Tap a gap to place the next number. Equal neighbors merge and grow. For example, 2 and 2 become 4. Tap the core to swap your hand.

+ Place it in a gap to fuse the two equal numbers touching it. If more matching pairs sit symmetrically around them, the reaction chains outward into a combo.

− Tap any number to cut it in half.

T Tap a number to lift it to the center, then tap a gap to set it down. Reshape the ring to line up pairs.

Keep merging to ignite a combo. Stay ahead of the photon circling the ring. Every level climbs the hierarchy: COMBO → STELLAR → COSMIC… all the way to SINGULARITY.

Merges charge the gauge. When it is full, tap ✦ POWER READY and choose φ, π, e, ∞ or Σ. Use it right away, or store it. The triangle holds three. Tap a stored power to release it.

Deeper stakes: fill the triangle with three powers and their composition may forge an Ultimate in the core. Seventeen recipes wait in the codex. Order never matters.

Classic rules against the clock. Ten seconds to start, and every merge buys more — the first merge of a move pays full, each extra merge in the same chain pays half.

Every mode feeds the challenge constellations. Completed challenges orbit their mode's world, and some unlock new modes.