NOVAHEART — One-Thumb Arcade

NOVAHEART is a one-thumb arcade game with a sharp core loop: you are a nova core at the center of a collapsing void — tap to flare an expanding shockwave that destroys incoming void shards before they breach your heart. Chain combos for multipliers, land precision kills near the shockwave's rim for double points, fill the Overdrive meter to wipe the whole screen, and survive waves that escalate every 2.5 seconds. Neon teal-and-ember visuals, juicy screen shake and particles, persistent local high score.