Island Tycoon

Turn a deserted island into a metropolis — tap to earn, build an economy across six districts, and prestige for permanent power.

▶ Play now — free, no download

Island Tycoon is a free browser idle game. You start with a single fisherman tapping the shore for coins and end up running a skyline of twelve building types, from a Fishing Hut to a Pinnacle Tower. It is built to be picked up for thirty seconds or played for an hour: the island keeps earning coins while you are away, and every prestige run makes the next one faster by handing you gems that boost income for good. The game is made by a solo developer in Finland (more on the About page) and has no purchases of any kind — every gem is earned by playing, and the optional rewarded ads only ever speed things up, never gate progress.

See it in action

How the game works

Tapping the island earns coins directly, but the real progress comes from buying buildings. Each of the twelve building types belongs to one of six districts — Harbor, Market Square, Downtown, Industrial District, Airport and Uptown — and a district only opens on the map once you buy your first building there. Opening all six is required before you can prestige, so no district can be ignored forever.

Owning more of a building helps, but multipliers matter far more than raw quantity. Every building type gets automatic milestone multipliers at 25, 50, 100, 200, 300 and 400 owned, and the Upgrades tab sells a separate ×2 for each type at 1, 10, 25, 50 and 100 owned. Buying those upgrades as soon as you can afford them is almost always worth more than the next few buildings.

Every few minutes a golden gull flies across the screen; tapping it triggers one of five random effects, from a one-off coin payout to a short burst where every tap is worth 777 times as much. Landmarks are one-off purchases that add a permanent bonus for the current run, and achievements — most of which survive a prestige — add small permanent bonuses of their own.

Once your island is built out, you can prestige: reset coins, buildings, upgrades and landmarks in exchange for gems, which are spent on permanent upgrades or simply held for a passive income bonus. The game also keeps earning while closed (offline earnings, capped and shown as a summary when you return), and a 7-day daily bonus cycle rewards you for coming back. None of this requires an account — progress is saved in your browser, with an optional Google sign-in if you want to continue on a second device.

The full mechanics, exact numbers and every upgrade are written out in the How to Play guide. For the raw numbers behind every one of the 12 buildings, see the Buildings reference; for a purchase order, prestige timing and offline-earnings math, see the Strategy guide.

What's in the game

• 12 buildings across 6 districts, each opening up the map as you expand
• Automatic milestone multipliers at 25, 50, 100, 200, 300 and 400 buildings owned
• Golden gulls with five different random bonus effects
• 5 landmarks for permanent-for-the-run income bonuses
• 19 visible achievements (plus a couple of hidden ones), most with a small permanent bonus
• Prestige and gems, with a 7-item gem shop of permanent upgrades
• Offline earnings, up to 8 hours with an upgrade, doubleable with an optional ad
• A 7-day daily bonus cycle with growing rewards
• Optional cloud save via Google sign-in, plus manual export/import with no account at all
• An opt-in public leaderboard
• Installable as an app (PWA) on phone or desktop, playable offline once installed

Frequently asked questions

Latest updates

Full changelog →