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Synapse Idle

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Synapse Idle screenshot 1
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Synapse Idle

Pavdup · Published by DEVDUP

Last updated 28 Sept 2026

Grow a 3D neural network from a single neuron. Workers haul energy along radiant paths, buildings amplify every passing signal, and a 100-node skill tree reshapes how your synapse evolves. A calm, incremental idle game about watching complexity bloom — tinted in whatever colors you choose.

Free to PlayComing SoonDJCTQ l

Free

View on Steam

Prices can lag the live Steam store — always confirm before buying.

Indie, Simulation, Casual · 2026 · More free games

About this game

■ Watching Is the Reward

Synapse Idle is a relaxing incremental idle game.

Nothing chases you. Nothing fails. Nothing fights back.

A 3D neural network radiating from a core, workers shuttling along its paths,

and shockwaves rippling each time a signal passes — that view itself is the point.

■ Room for Strategy

Close paths offer fast round-trips; distant paths carry denser resources.

Where you place a building on a path changes how it feels,

and buildings on the same path can amplify each other's effects.

How deep you optimize is up to you — a rough layout still grows the network.

■ A 100-Node Growth Tree

The core hosts a skill tree across three branches: WORKER / BUILDING / NETWORK.

Filler nodes for small stackable bonuses, Notable nodes for unique mid-size effects,

Gate nodes that open new content, and Keystones that rewrite the rules of the game —

grow your network across all 100 nodes.

■ Your Synapse, Your Aesthetic

Color-pick paths, workers, buildings, and backgrounds however you like.

The core's appearance is composed of Outer / Outline / Inner parts — pick from 14 presets in total.

Path-line shaders come in 4 styles too — Pulse Flow, Gradient, Dashed, and more.

Slowly, but inevitably, it grows. 

Until your synapse is in full bloom — enjoy.

System Requirements

Will my PC run this? →

Minimum

Minimum:
  • OS: Windows 10 (64-bit)
  • Processor: Intel Core i3-4000 / AMD FX-6300
  • Memory: 4 GB RAM
  • Graphics: WebGL 2.0 (Intel HD 4000 / GT 730 Up)
  • Storage: 500 MB available space

Supported Languages

English*, French*, Italian*, German*, Spanish - Spain*, Japanese*, Korean*, Simplified Chinese*, Traditional Chinese*
*languages with full audio support

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