JÖTUNN – Viking Dubstep & Rap BGM Generator for RPG Maker MZ & MV

JÖTUNN forges original Viking dubstep & rap — epic Nordic builds that erupt into heavy drops — entirely from scratch in your browser.

Pick a category, pick a scene, ride a few sliders, and it composes and synthesizes an original loop: a rising war-march that detonates into a wobble-bass drop, an 808-driven Viking trap beat with a horn-and-choir topline, a mead-hall folk-rap romp. It’s a dev tool — make a track, export it, drop it into your game. Your loops are original and yours to ship.

Built to the same expansive scale as its siblings — 52 scenes across 13 categories, forged from 12 fundamentally different forms — so nothing blurs into one background loop.

13 categories, 52 scenes

Filter the grid by category, then raise the horns:

• Battle — Shield Breaker, Iron Clash, Onslaught, Warpath
• War March — To the Front, Drums of War, Banners High, Advance
• Mead Hall — Mead & Mirth, Horns Up, The Feast, Boasting
• The Sea — Longship, Open Sea, The Fjord, Storm Tide
• Ragnarök — The End Times, Fimbulwinter, Twilight of Gods, Fenris Wolf
• Valhalla — The Golden Hall, The Fallen, Einherjar, Ascend
• The Hunt — The Wild Hunt, Tracker, Prey, The Chase
• Blót & Rite — The Blót, Runes, Seiðr, Sacrifice
• Frostlands — Frost Giant, The Frozen North, Icebound, Blizzard
• The Gods — Odin’s Eye, Thunder Hammer, Loki’s Trick, Allfather
• The Raid — The Raid, Plunder, Burn It Down, Ambush
• Saga — The Saga, Bloodline, Ancestors, Legend
• Berserk — Blood Rage, Battle Madness, Wolfskin, No Fear

12 forms

Every scene is a genuinely different build — not one beat reskinned: war-march (epic build → dubstep drop), Viking trap, berserker hype, skald boom-bap, shield-wall anthem, longship row-groove, melodic dubstep, apocalyptic Ragnarök riddim, mystic trap, dark drill, mead-hall folk-rap, and the colossal half-time jötunn.

Turn YOUR voice into the war-band

A dedicated Voice panel lets you record from your mic or upload audio (up to 6 voices), then choose a role and the tool resynthesizes them into the track, in tune with the beat:

• War-cry — your voice harmonizes the chords into a choir
• Battle chant — rhythmic, locked to the tempo
• Skald whisper — breathy background texture
• War-horn drone — a sustained low bed
• Hook — your voice sings the topline

Voice pitch and mix controls dial it in. The vocal layer is baked into playback and the exported .ogg/.wav. (This is DSP resynthesis of your own recording — pitch, loop, filter, reverb — not AI voice cloning; nothing is uploaded and it runs offline.)

You’re in control — 6 sliders + 5 selectors

• Epic — lean → legendary (size of the build)
• Heaviness — clean → brutal (drop weight, wobble aggression, drive)
• War Chant — silent → frenzied (war drums & chant layers)
• Tempo — dirge → raging
• Bounce — straight → trap (hip-hop swing & hat density)
• Space — tight → fjord (reverb & width)
• Plus Form (force any scene into another of the 12), Feel (straight / 6-8 row / half-time), Palette (Folk / Electronic / Orchestral / Hybrid), Key, and Length (Short → Epic ~90s).
• Reforge rolls a fresh seed — new mode, tempo, progression and fills. The seed + sliders reproduce any track exactly.

Export & drop in

• .ogg — game-ready, with LOOPSTART / LOOPLENGTH loop tags baked in. Drop it into your project’s audio/bgm/ folder and RPG Maker (MZ and MV) loops it seamlessly.
• .wav — uncompressed, for editing in a DAW.

Good to know

Runs offline in any modern browser — nothing installs. Every instrument — war drums, sub-bass, horns, choir, bowed strings, flutes, hi-hats — is synthesized from scratch with the Web Audio API. The only samples used anywhere are the voice recordings you choose to add.

JÖTUNN emulates the style and techniques of modern Viking hip-hop and bass music; Norse mythology is public-domain folklore. It does not contain or reproduce any existing songs or recordings, and is not affiliated with or endorsed by any artist, label, or rights holder.

FAQ

Is the music royalty-free? Can I use it commercially? Yes. Everything JÖTUNN exports is original and yours to use in commercial or free projects, no attribution required. A credit (“Music forged with JÖTUNN”) is appreciated but optional.

Does it use samples or copyrighted tracks? No. Every instrument is synthesized from scratch with the Web Audio API, and it never reproduces any existing song or recording — it emulates a style. The only audio samples involved are voice clips you record or upload yourself.

Is this like Viggo Ironside / Bob Dominator? It’s built to capture that vibe — Nordic-epic builds slamming into heavy drops and hip-hop beats — but every track is original and generated on your machine. It’s a tool for making your own Viking-flavored BGM, not those artists’ music.

How does the voice feature work? Is it AI voice cloning? No cloning. You record or upload a voice, and the tool pitch-shifts, loops, filters and reverbs that recording to fit the chords and beat — turning it into war-cries, chants, whispers, horns or a sung hook. It’s classic DSP resynthesis, runs entirely offline, and nothing is uploaded anywhere.

No sound from the mic / “mic blocked”? Browsers only allow mic recording over https or localhost, so on a bare file:// open the mic is blocked — use Upload instead (works everywhere), or run it from the itch HTML player / a local server. Uploaded WAV/MP3/OGG work in every case.

With 52 scenes, does it all just sound the same? No — that’s the point of the 12 forms. A war-march-into-dubstep-drop, an 808 Viking trap beat, a boom-bap skald verse and a colossal half-time riddim are built completely differently. The Form selector pushes any scene into another form and Palette re-instruments it, so the combinations run into the thousands.

Will the loops loop seamlessly in RPG Maker? Yes — export the .ogg. It carries LOOPSTART/LOOPLENGTH tags MZ and MV read to loop with no gap. (The .wav has no loop tags; use it only for DAW editing.)

MZ only, or MV too? Both. They both read .ogg for BGM. Put the file in audio/bgm/.

Can I use these outside RPG Maker — a video, a stream, a hype reel? Yes. The .ogg/.wav are ordinary audio files; the loop tags are ignored by tools that don’t read them.

Do I need to install anything or be online? No. It’s one .html file — download it, open it in a browser, work offline forever.

How do I get the exact same track back later? Note the seed shown on screen and keep your slider + selector values; re-enter them for an identical render.

The OGG button says the encoder didn’t load. Refresh and retry. Fallback: export the .wav and run ffmpeg -i track.wav -c:a libvorbis track.ogg (no loop tags that way; prefer the built-in OGG export).