A one-thumb arcade game with a sharp core loop

VOLTCAST is a lightning-storm one-thumb arcade game. You are a storm core at the center of a tempest — tap to discharge lightning arcs that destroy incoming storm spirits. Build CHARGE for wider arcs and more lightning, but risk OVERCHARGE lockout. Collect SPARKS from close-range kills for free discharges. Survive SURGE STORM events with escalating intensity. Electric blue/purple neon aesthetic, local high-score persistence, 4 enemy types, chain combo scoring.