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Watch trailer on Steam ↗Synapse Idle
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.
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
- 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
*languages with full audio support






