🏗️ South Grand Harbor Port City

You are the planner now. South Grand Harbor Port City starts with nothing but power lines and ambition. Tap a ready building to collect its tax, reinvest in bigger blocks, and keep your grid in the black. Grow income without browning out the city, bank the goal, and chase a higher score. It runs a heavy-industry economy: bigger up-front builds that grind out strong, steady returns. South Grand Harbor Port City is a free micro city-building game that plays instantly in your browser with one thumb — no download, no sign-up. Unlike a plain idle tycoon, here a resource puzzle sits underneath every tap: a house only pays tax while the power and water it needs are covered, so the fun is in the balancing act. Compact grids, clean vector zones, satisfying collect pops and a steadily rising tax goal make it a moreish "one more block" planner you can dip into any time. Thoughtful pacing keeps it relaxing at first and pleasantly challenging as you improve. With its gentle learning curve, anyone can pick it up in seconds yet still find depth to master.

How to play

• Select a building from the shop bar — start with a ⚡ power plant and 💧 water tower.
• Tap an empty plot to place it; the cost is spent and a timer starts.
• Add houses and shops only while your power and water meters stay positive.
• Tap a ready building (🪙) to collect its tax income, then reinvest.
• Grow your tax income to the goal without letting a meter go negative.

Controls

One thumb: tap a building to select, tap a plot to place, tap a ready plot to collect. Tap 🔊 to mute. Touch or mouse — no keyboard needed.

Features

• Zone Dock Homes, Trade Towers, Container Yard and more on a 5×5 grid
• Heavy Industry economy — its own build costs, speeds, yields and tax goal
• Power ⚡ and water 💧 balance gates your tax income
• Real-time production with tappable collect pops
• Particles, coin pops and WebAudio sound with a mute toggle
• Rising tax goals and a saved best score

FAQ