From a deserted island to a metropolis — every mechanic explained.
In short: tap the island to earn coins, spend coins on buildings that earn coins for you. Once your income is large enough, start over with a prestige and collect gems that make the next run faster.
The game keeps earning while closed: when you come back, you collect what accumulated while you were away.
Tap the island in the middle of the screen. Every tap earns coins. Once you have 15 coins, buy a Fishing Hut from the Buildings tab — it starts producing coins on its own, even when you are not tapping.
From there the game is a simple loop: buy buildings that pay for themselves, and spend the income on the next one.
There are 12 buildings, from the Fishing Hut to the Pinnacle Tower. Each belongs to one of six districts:
A district opens on the map as soon as you buy your first building in it. Opening all six is a requirement for prestige, so none of them can be skipped.
A building's price rises 15% for every copy you already own. The cheapest building does not stay cheapest for long — compare how many coins per second each purchase adds relative to its price.
The number of buildings is not the only thing that matters. Multipliers grow far faster than quantity does.
Every building type gets an automatic multiplier once you own enough of them. These cost nothing:
In total, 400 copies of a building produce 96 times what they would with no milestones at all.
In the Upgrades tab you can buy a separate ×2 for each building type once you own 1, 10, 25, 50 or 100 of them. These are the best value in the game — buy them as soon as you can afford them.
The same tab holds eight upgrades that affect the whole island: multipliers to tap value, tying tap value to your total income, and critical taps (a 5% chance of a tenfold tap).
A golden gull flies across the screen at random, every 3–7 minutes, and stays visible for 13 seconds. Tap it for one of five effects:
Tip: spend a Click Frenzy tapping as fast as you can — 15 seconds of 777× taps can beat hours of passive income in the early game.
Landmarks are one-off purchases that decorate the map and grant a permanent bonus for the current run. A prestige resets them.
There are 21 achievements, and nearly every one grants a small permanent global production bonus. Unlike landmarks, achievements survive prestige — they are permanent progress.
Once your island is built out, you can start over and collect gems. A prestige resets coins, buildings, upgrades and landmarks, but keeps your gems, achievements and gem shop purchases.
The number of gems is the cube root of the run's total earnings:
gems = floor( 10 × (run earnings ÷ 1,000,000,000)⅓ )
In practice this means doubling a run's earnings yields about 26% more gems. So play a run far enough, but not forever — income grows faster than gems do.
Prestige unlocks only when both conditions are met:
Gems do two things. First, every unspent gem grants +2% to all income. Second, they buy permanent upgrades that survive all future prestiges:
Note the trade-off: the +2% aura applies only to unspent gems, so buying temporarily lowers your income. Time expensive purchases for just after a prestige, when losing the aura hurts least.
The game keeps producing while closed, at 50% efficiency compared to active play. Accumulation is capped at four hours (eight with Long Memory, plus 10% more with the Convention Hall).
Absences under a minute are credited silently with no notice. Anything longer shows a summary when you return.
Once per day you can claim the daily bonus from the 🎁 button. Rewards grow over a seven-day cycle: 15 minutes of income on day one, and 8 hours of income plus 5 gems on day seven.
A single missed day does not break your streak — only two consecutive misses reset it. Each completed seven-day cycle increases rewards by 10%.
There are two optional places where watching an ad grants a bonus:
Ads are always optional: the game shows no ad you did not start yourself, and skipping one never blocks the base reward. Right now the ad slots play a placeholder — a real ad network will be connected later.
You can join the public leaderboard by choosing a nickname in the settings. Taking part is optional and can be undone at any time.
Signing in with a Google account carries your save between devices. You can also export and import your save by hand from the settings, with no account at all. Both are described in more detail in the privacy policy.