Build the castle before the tide comes in

Every tap scoops one block of damp sand onto a castle on the beach, from a single tower to a fort to a big castle with a keep. Each castle is a race with the tide: finish it before the water reaches the moat and it stands for good up the beach, and the shell rows on top are yours alone to build. Kids with buckets, a toy sand digger and a big castle mould lend a hand as you buy them.

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Genre: Clicker
Controls: Touch
Mouse
Keyboard
Devices: Desktop
Tablet
Mobile
Released: 2026

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Sand King

Sand King is a sandcastle on a beach in a low evening sun. Tap anywhere and the next block of damp sand goes onto the castle, course by course, and every scoop pays sand, the game's own currency. Tap quickly to fill the streak, which multiplies every scoop up to three times at first and drains soon after you stop. Finish the last block and the castle stands, pays a bonus and moves up the beach. Castles grow every third one, from a tower of 18 blocks to a fort with two towers, then a big castle with a keep.

Every castle is a race with the tide: as the water creeps up the beach, a clock counts down and the flag at the moat turns red. Finish first and the castle pays a dry bonus, bigger the more tide was left. If the water wins, half the course you were building slumps away with a Splash!, but finished courses, sand and helpers are never touched, and a full tide starts again. From the third castle the top courses are shell rows, set with cockles and sea glass: they pay two and a half times a plain scoop, and only you build them.

The Upgrades tab sells Bigger Spade, Wet Sand and Golden Spade for bigger scoops, Shell Trim and Sea Glass for more and richer shell rows, Moat Rake for a slower tide, and more. The Helpers tab brings Kids with Buckets, a toy Sand Digger and a Castle Mould that leaves up to 14 blocks at once. Now and then a golden shell slides across: tap it for a Golden hour! or a heap of sand. Helpers keep earning for up to two hours while you are away. Once a run is worth 10 starfish, New Beach starts it all again: upgrades, helpers and castles start over, and every starfish adds 25% to all your sand, forever. Progress is saved in the browser on this device.

Tips for Sand King

Your taps carry the early castles, so keep a steady pace and let the streak build; it drains soon after you stop. Bigger Spade is the first thing to buy and Kids with Buckets soon after, then Wet Sand, which doubles every scoop, and later Golden Spade, which triples it. Beach Crew adds a share of your helpers' sand to every scoop, so it grows as they do, and Sun Hat lets the streak fade slower and go higher.

The tide is tightest on the forts, roughly castles 13 to 27, before the castle mould and a crowd of kids carry the plain courses. Moat Rake, from castle 8, gives every castle more time and helps most there. The shell rows are always yours, so once the helpers have built the plain courses, scoop through the top quickly: that is where the race is won and where your taps pay most. Shell Trim adds a shell row to every new castle, up to half its courses, and shows MAX once more would add nothing, so buy it early in a run; Sea Glass makes each shell scoop richer. Tap the golden shell whenever it slides by. A New Beach needs at least 10 starfish, and the next run goes much faster.

Frequently asked questions

Is Sand King free to play?

Yes. Sand King is free to play in your browser on Kiloo, with nothing to download and no account to make. Every upgrade and helper is bought with sand you scoop in the game. Your progress is saved in the browser on this device, so it does not follow you to another one.

Can I play Sand King on my phone?

Yes, upright or sideways. Tap anywhere on the beach to scoop and tap a row in the panel to buy it; every finger scoops a block. On a computer, click with the mouse or press Space or Enter to scoop, 1, 2 and 3 for the tabs, P to pause and M to mute.

What happens if the tide wins in Sand King?

Each castle gets a tide of 8 seconds plus about a fifth of a second for every block, longer with Moat Rake. If the water reaches the moat first, half of the course you were building slumps away and that castle pays no dry bonus. Finished courses, sand, helpers and upgrades are never touched, and a full tide starts once the water has run out.

Does the tide come in while I am away from Sand King?

No. Pausing holds the tide, and while the game is closed your helpers earn sand for up to two hours without adding blocks or moving the water. A Welcome back! card shows what they made, and when you return, the castle you left gets a full tide again. Progress is saved in the browser on this device.