Still Alive – 灰の鼓動

Prompt: Dark cinematic survival EDM, fully instrumental adaptive game soundtrack for a post-apocalyptic 2.5D zombie survival game. Cold minor key (D or F minor), 112–120 BPM with slight natural fluctuation (±2 BPM). Layered structure: Deep low pad, sub bass drone (40–80Hz), soft heartbeat kick as base. Add rhythmic sub pulse and light metallic percussion when danger rises. For 3+ enemies: extra percussion and subtle distorted low synth. Low HP: stronger kick, slight bass distortion, reduced high frequencies. Night: dampened highs, reversed breath-like noise, slight pitch instability. Combat: brief 0.3s silence then heavy, controlled low-end drop (not festival style). Mood: calm, hopeless, dark, chill, mysterious, oppressive. No vocals. Low-end focused. Minimal but tense.