Compare Circuits prices across trusted key stores and find the best deal. Developed by Digital Tentacle. Published by Digital Tentacle. Released on 4/17/2014. Available on PC, Mac, Linux. Genres: Casual, Indie.

Put your ears to work: this quiet little music puzzler from 2014 rewards patient listeners and will genuinely teach you something about how songs are built.

My instinct with a game this old and this small is to expect something half-finished, a proof-of-concept dressed up as a product. Circuits surprised me. Digital Tentacle built something genuinely focused around a single, peculiar idea: what if a puzzle game used your ears as the primary input device, not your eyes? The setup is spare. Each of the 25 levels presents you with a circuit-board layout and a collection of audio fragments that need to be dropped into the correct nodes to reconstruct a complete song. You listen to the target track, then start placing pieces, looping certain clips a specific number of times, and isolating individual instrument layers to untangle what goes where. The layer isolation feature is the game's smartest design choice - when a full mix is playing back and something is clearly wrong, being able to strip down to just the drums, or just the synth line, gives you a real investigative tool rather than forcing you to guess. There is also a hint system with two tiers: one that flags misplaced nodes and one that auto-corrects a single placement. Both are limited per level, so they feel earned when you use them. The soundtrack itself spans electronic ambient, dubstep textures, and full orchestral moments, all composed by David Garcia Diaz, who also worked on Deadlight and Rime. That pedigree shows. The music is the product here, and it holds up. Where the game splits opinion is in its fundamental ask. Reconstructing a song is, at its core, a memory and ear-training exercise. If you play by instinct and have decent relative pitch, the first ten levels will feel gentle to the point of transparency. If you have no musical background at all, the later levels - particularly anything with overlapping loops and a four-layer drum arrangement sitting underneath piano and vocals - can slide from satisfying to genuinely disorienting. A vocal minority of players found the feedback loop frustrating: you only discover an error after the whole track finishes playing, which means repeated listens to the same passage. For most people that repetition is meditative. For some it tips into tedium. Worth knowing before you commit. The visual design is deliberately minimal, a monochrome circuit diagram that lights up as audio flows through it. It is not pixel art, it is closer to a technical illustration brought to life, and the restraint is the point. Nothing competes with the sound. The whole thing runs to somewhere between ninety minutes and a few hours depending on your musical background, and it knows exactly when to end. A Circuits Composer mode was also planned as a free update, which would add Steam Workshop support for custom tracks, extending the content ceiling considerably beyond those 25 built-in levels. This is a game for people who find Audiosurf too passive and rhythm games too reflex-driven. It occupies a specific, quiet niche: active listening as a puzzle mechanic. If that sounds like the kind of thing you would put on headphones for, it almost certainly is. Kai, Scout Team

Circuits

Circuits

Apr 17, 2014Digital Tentacle
GamerScout Says

Put your ears to work: this quiet little music puzzler from 2014 rewards patient listeners and will genuinely teach you something about how songs are built.

PCMacLinux
Steam Deck Playable
Best Price Available
€0.63
at Kinguin
Lowest tracked: €0.63
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GamerScout Verdict

Best for patient, music-curious players who want a short, thoughtful puzzler they can finish in a single headphone session.

Compare Prices(6 stores)

KinguinBest price
StandardGlobalSteam KeyKey
€0.63
Priced in EUR by the store
Buy
StandardGlobalSteam KeyKey
€0.87-83%
Priced in EUR by the store
Buy
StandardEurope (EU)Steam KeyKey
€0.93
Priced in EUR by the store
Buy
StandardGlobalSteam KeyKey
€1.48
Priced in EUR by the store
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StandardEurope (EU)Steam KeyKey
€4.99
Priced in EUR by the store
Buy
StandardGlobalSteam KeyKey
€4.99
Priced in EUR by the store
Buy
StandardGlobalSteam KeyGift copy
€5.74
Priced in EUR by the store
Buy

Every store in this table quotes us in euros, so the EUR figure is the price the seller actually set, not our arithmetic — which is why EUR is also the currency we rank in. We only list an offer here when the store gives us its price in euros, so nothing in this table is a number we invented.

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Price History

Lowest tracked
€0.6315 Jun 2026
Current best
€0.63
Lowest since we started tracking
Keyshops
€0.58€0.62€0.65€0.697 Jun30 Jun23 Jul15 Aug7 Sept
7 Jun — 7 Sept
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Screenshots & Media

About Circuits

My instinct with a game this old and this small is to expect something half-finished, a proof-of-concept dressed up as a product. Circuits surprised me. Digital Tentacle built something genuinely focused around a single, peculiar idea: what if a puzzle game used your ears as the primary input device, not your eyes? The setup is spare. Each of the 25 levels presents you with a circuit-board layout and a collection of audio fragments that need to be dropped into the correct nodes to reconstruct a complete song. You listen to the target track, then start placing pieces, looping certain clips a specific number of times, and isolating individual instrument layers to untangle what goes where. The layer isolation feature is the game's smartest design choice - when a full mix is playing back and something is clearly wrong, being able to strip down to just the drums, or just the synth line, gives you a real investigative tool rather than forcing you to guess. There is also a hint system with two tiers: one that flags misplaced nodes and one that auto-corrects a single placement. Both are limited per level, so they feel earned when you use them. The soundtrack itself spans electronic ambient, dubstep textures, and full orchestral moments, all composed by David Garcia Diaz, who also worked on Deadlight and Rime. That pedigree shows. The music is the product here, and it holds up. Where the game splits opinion is in its fundamental ask. Reconstructing a song is, at its core, a memory and ear-training exercise. If you play by instinct and have decent relative pitch, the first ten levels will feel gentle to the point of transparency. If you have no musical background at all, the later levels - particularly anything with overlapping loops and a four-layer drum arrangement sitting underneath piano and vocals - can slide from satisfying to genuinely disorienting. A vocal minority of players found the feedback loop frustrating: you only discover an error after the whole track finishes playing, which means repeated listens to the same passage. For most people that repetition is meditative. For some it tips into tedium. Worth knowing before you commit. The visual design is deliberately minimal, a monochrome circuit diagram that lights up as audio flows through it. It is not pixel art, it is closer to a technical illustration brought to life, and the restraint is the point. Nothing competes with the sound. The whole thing runs to somewhere between ninety minutes and a few hours depending on your musical background, and it knows exactly when to end. A Circuits Composer mode was also planned as a free update, which would add Steam Workshop support for custom tracks, extending the content ceiling considerably beyond those 25 built-in levels. This is a game for people who find Audiosurf too passive and rhythm games too reflex-driven. It occupies a specific, quiet niche: active listening as a puzzle mechanic. If that sounds like the kind of thing you would put on headphones for, it almost certainly is.

Kai
Kai · Scout Team

Indie & narrative

Tags

singleplayerachievementstrading-cardstier:sub-5Music PuzzleEar TrainingMinimalistAudio-DrivenShort & CompleteLayer IsolationRelaxing Difficulty CurveComposer Mode

System Requirements

Minimum

OS
Windows XP/Vista/7/8
Memory
2 GB RAM
DirectX
Version 9.0c
Processor
1.6 GHz
Sound Card
Stereo

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Game Info

Developer
Digital Tentacle
Publisher
Digital Tentacle
Release Date
Apr 17, 2014

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Frequently asked questions about Circuits

How much does Circuits cost?

As of 7 September 2026, the cheapest in-stock offer for Circuits is €0.63 at Kinguin, out of 7 live offers we track across verified key stores. Prices change daily — the table on this page is refreshed continuously.

Where can I buy Circuits cheapest?

The lowest in-stock price we track for Circuits is €0.63 at Kinguin (7 September 2026). We compare 7 live offers from verified key stores — the full table with every store and its trust score is on this page.

What platforms is Circuits available on?

Circuits is available on PC, Mac, Linux.

When was Circuits released?

Circuits was released on 17 April 2014.

Who developed Circuits?

Circuits was developed by Digital Tentacle.