Subterranea: Metal Discovery

Stop replaying the same ten albums. Feed Subterranea bands you love and dig up obscure metal you've never heard — from surface hits to buried demos.

You've heard the classics. Subterranea is for what's underneath.

Feed it a few bands you already love, and it surfaces artists you haven't heard yet — not the algorithm's greatest hits, but the ones waiting one, two, or four layers down.

DIG BY DEPTH Choose how far you want to go: • Surface — the canonical, well-known names around your seeds • Underground — recognized, but not household names • Deep — cult bands with a devoted following • Bedrock — demos, tiny labels, and buried gems

BUILT FOR CRATE-DIGGERS Track every find: to-listen, listened, favorite, or passed • Hide bands you already know so they never resurface • "More like this" to branch off any discovery • Advanced filters — dig by region and scene • Your whole library lives on-device; export a backup anytime

PRIVATE BY DESIGN No account. No login. No tracking. Everything you save stays on your phone. The only thing that leaves the device is your band query — sent to Groq's AI to generate recommendations.

BRING YOUR OWN KEY Subterranea runs on your own free Groq API key (grab one at console.groq.com — no credit card required). No AI subscription, no middle-man: you pay for the app once, not forever.

FREE TO TRY, YOURS FOREVER Start with one dig a day, free. Unlock Subterranea Pro with a single one-time purchase — no subscription — for unlimited digs, every depth from Surface to Bedrock, and Advanced filters.

Stop replaying the same ten albums. Start digging.