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idle city ages of growth

A free city builder game — play it in your browser, no install. A single-file idle city-builder that grows from a Stone Age village into a Fusion Age world-city. Zero dependencies, fully offline, mobile-ready. By Dr. Sohil Momin. Source-available: free for non-commercial use with attribution; commercial use requires a licence.

by @drsamonline · drsamonline/idle-city-ages-of-growth on GitHubLANG JavaScriptHOSTED ON DRSAMONLINE.GITHUB.IOUPDATED 20 Oct 2026

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Controls: Lay roads outward from the Town Hall — buildings only work when a road reaches…

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From the README

A single-file idle city-builder that grows from a Stone Age village into a Fusion Age world-city.

Build roads, zone land, generate power and keep your citizens happy — the city runs itself while you watch, plan and expand.

Plain HTML + CSS + vanilla JavaScript on a single . No frameworks, no bundler, no runtime libraries — the whole game is one script that renders a tile map with a pre-rendered terrain layer and culled building draws, simulated on a fixed-tick loop.

Read the full README on GitHub →

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