🏗️ Old Mega Harbor Port City

You are the planner now. Old Mega Harbor Port City starts with nothing but power lines and ambition. Every home and business needs power and water to pay tax, so balance your utilities against your growth. Master the power-water-housing loop, reach the tax goal and watch your skyline rise. It favours rapid growth: very cheap, very fast blocks with smaller payouts, rewarding quick, busy expansion. Old Mega 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. Built mobile-first and feather-light, it loads in a blink and stays smooth even on older phones. Crisp, colourful visuals and satisfying feedback give every action a little spark of delight.

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 6×5 grid
• Rapid Growth 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