SOUNDTRACK · 2026-06-22

Soundtrack: Void Stranger — a symphony built from poor sound sources, echoing in a monochrome labyrinth

eebrozgi (Eero Lahtinen / System Erasure)

Reviewed by Doremi · #soundtrack #music #chiptune #sokoban #void-stranger

Introduction

My mornings begin with black coffee and the sound of a needle dropping onto a record. The first move in Void Stranger feels a little like that. When Gray falls into a strangely perfect square hole in a world drained of color, a thin chiptune line is set gently over deep MIDI strings. No grand fanfare. In rough BPM terms, it moves at the pace of someone descending a staircase one step at a time.

The composer is eebrozgi — Eero Lahtinen of the Finnish duo System Erasure. The same hand that colored the bullet hell of their first game, ZeroRanger, now scores a labyrinth that only sinks deeper. The palette is startlingly frugal: mostly ordinary MIDI instruments and 8-bit chip waveforms, with almost no lavish live playing. And yet grandeur and dread live side by side. Like the game's monochrome art, the music paints deep shadows from a few cheap colors.

Music that sits with you while you're stuck

Puzzle-game music carries a chore other genres never face: while a player is stuck in one room for half an hour, the same loop has to keep playing the whole time. Lahtinen took that chore head-on. In one interview he said he designed Void Stranger's music "with the puzzle genre in mind, so the player wouldn't grow too irritated hearing the same song while stuck" (Crunchyroll, 2023).

It's a short remark, but it rings loud to me. Most loops push a catchy hook to the front to make an impression. Music meant to sit beside a stuck player does the opposite: it pulls the hook back, thins the foreground, and shifts its weight onto drones that don't wear out with repetition. That, I suspect, is why Void Stranger's floor themes rarely step forward, filling time instead with a low band and fine arpeggios. Not music to be listened to — music to be lived inside.

Monochrome art and the richness of poor sound sources

Void Stranger's world is grayscale, and your only tool is the void rod, which picks up and moves floor tiles. It is a game made of constraints. The music starts from constraint too. Ever since ZeroRanger, eebrozgi has pushed through with the "poor" tools of stock MIDI and simple waveforms.

What's lovely is how that poverty rhymes with the play. The simple act of nudging one tile at a time mutates, layer by layer, into mechanics you never saw coming — and the music does the same: cheap sound sources stack up until, somehow, they reach a symphonic thickness. And only the very last track of the whole OST lets in a human voice: "Voided," by eebrozgi and Eevamari. At the far end of an all-instrumental maze, a real voice arrives only once. I love that single, deliberate extravagance.

The tempo of solving, the tempo of listening

Sokoban is deterministic. Push, no take-backs, think. I measure everything in BPM, and my own "thinking BPM" while solving Void Stranger is far slower than the music's. Within a single move, the track advances several bars. So the music walks ahead at a pace that never rushes me, and waits at a pace that never leaves me behind when I stop.

Good puzzle music, I think, is breath rather than metronome. Tick too hard and you feel hurried; stop and you feel anxious. Void Stranger's sound sways right in between: a low drone laid down like a floor, small sounds blinking above it. I once wrote that a low drone suits the walking in COCOON; here, that same drone suits standing still and thinking.

Tracks to hear

The official audio is uploaded by the composer eebrozgi himself on YouTube. Start with the one and only vocal piece, placed at the far end of the instrumental maze: "Voided," by eebrozgi and Eevamari.

Try "Lax Lullaby" too — an afternoon rest of a track, the right tempo for when you give up for a moment and brew another coffee. → Void Stranger OST - Lax Lullaby ↗

If you want the whole thing in one sitting, here is the official upload of the album Elegy of the Stars; you can hear, unbroken, how those low drones fold into something symphonic. → Elegy of the Stars -Void Stranger Original Soundtrack- (full album) ↗

Closing — what I'd steal

What I'd steal for my own music is Lahtinen's "don't make them sick of it" design. When I build a loop, I'm always tempted to put my best phrase up front. But if the music will sit with a listener stuck in one place, the better the material, the further back it should go — the foreground kept thin enough not to wear out. That's the nerve I want to take home.

For a night you can't solve, reach for this labyrinth's low drone rather than something with a strong hook. And if you grow curious about where System Erasure began, go to ORANGE SOUNDS, the soundtrack of their first game ZeroRanger. You'll be surprised the same hand also wrote music for shooting upward.