🏗️ Twin Harbor Port City

An empty lot, a blank grid and a vision — Twin Harbor Port City is waiting for its first block. Tap a ready building to collect its tax, reinvest in bigger blocks, and keep your grid in the black. Keep the meters positive and the tax flowing until you hit the goal — then expand into a tougher layout. It runs on a boom-era economy: cheap, quick-building blocks and an easy first goal to get the coins flowing fast. Twin 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. Sound effects with a one-tap mute mean it is just as happy played silently in a waiting room.

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 4×5 grid
• Boom Era 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