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Seaglass Cavern

A vaulted sea cave lit by turquoise water and a shaft of daylight through the roof. The boldest world on the coast, where two Moon Pools on an empty spin send the last reel round again.

25 linesLast-reel respinMedium volatilityFree account worldCoin RTP 97.0%
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Sign up to play Seaglass Cavern

The games are free and will stay that way. An account looks after your 100,000 coins, favourites, level and daily missions from one visit to the next — and lets us check you are 18 or over before you spin.

  • 100,000 free coins on the first day
  • No card and no payment page anywhere on the cliff
  • One coin pile for every world you unlock
  • No download at all — everything runs in the browser

Virtual coins and nothing more. No real-money gambling, no prizes of real-world value and no in-app purchases. 18+.

No card, no payment details, nothing for sale. The coins are worth nothing in the real world and can never be cashed out.

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About this world

Seaglass Cavern

Seaglass Cavern is the deep end of the coast. Much of its value rests with the Basking Shark and the Golden Conch, so the cave may echo empty for a spell until the light comes pouring in. Second Swell softens a near miss: when two Moon Pools glint on a paid spin that won nothing, only reel five rolls in again, and whatever it brings is judged like any other result. The Swell Crest covers any symbol except the Moon Pool. Three pools let the tide in for nine free spins at double pay; four pools mean fourteen, five pools twenty-two.

Second Swell. Two Moon Pools, no more and no fewer, on a paid spin that won nothing give reel five a lone free turn; across the free round each win counts double.

The honest part

Coins only, every shift

Everything on this cliff is played with free virtual coins. No real-money gambling takes place, nothing you win has real-world value, and nothing is sold in the app. A random number generator decides each result; earlier spins never affect the next one.

Measured by running this page's own engine for 5,000,000 spins: coin RTP 97.0%, hit frequency 39.4%, free spins about once in 93 spins, a win of 10x your stake or more about once in 120 spins. Coin figures only — no money is staked or returned.

How to play

Seaglass Cavern in three steps

1

Sign in, follow the tide into the cave and set a stake for the turquoise reels.

2

Spin. Whenever a paid spin wins nothing yet shows precisely two Moon Pools, reel five alone gets a free extra roll, and the screen it leaves is paid in the usual way.

3

Three Moon Pools flood the cave with nine free spins at double pay, while four pools bring fourteen and five pools bring twenty-two.

Who it suits

Calm explorers content to wait out the dim stretches of the cave for the moments the turquoise light breaks through.

What to expect

The widest swings on the coast. The basking shark and the golden conch keep the hefty pays to themselves, so wins arrive in clusters with long, echoing pauses between.

Symbol guide

What pays in Seaglass Cavern

Symbol on the engine-house reelFive of the symbol along one lineThe same, against your whole stake
Swell Crest (wild)7,500× line bet300× your stake
Golden Conch3,400× line bet136× your stake
Basking Shark1,600× line bet64× your stake
Rockpool Anemone1,000× line bet40× your stake
Brittle Star550× line bet22× your stake
Tide Pebble320× line bet12.8× your stake

The five card ranks (10 to A) pay the least. Three Moon Pools anywhere open the free round. Full values for three and four of a kind are in the paytable.

Questions

About Seaglass Cavern

It needs a paid spin that won nothing and has exactly two Moon Pools on show; then reel five alone takes another free roll.

Yes. Yes, each free-round win counts twice over, and further Moon Pools found during the round add spins.

That is its nature: the scarcer creatures hold the large pays, and the machine never banks, owes or withholds a win for later.

Today's missions

Four jobs from the mine captain, free coins

Missions start fresh each day and count in every world. Doing them is up to you.

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18+ onlyFor adults over legal gambling age. Not directed at under-18s.
No real moneyNo real-money gambling is offered or promoted here.
No prizesNothing won has real-world value. Coins cannot be withdrawn.
No purchasesNo in-app purchases. Every coin is free.

Spin for the fun of it, and stop once the fun runs out. Choose a finishing time before you begin and take breaks along the way. If any kind of gambling is causing you trouble, the National Gambling Helpline is free and confidential on 0808 8020 133 at any hour, and you can also visit GamCare and BeGambleAware. Our responsible play policy covers the rest.

18+

A free social casino on the cliffs, with no real-money gambling anywhere in the workings.

Tinmine Clifftop is only for adults of 18 and over. The coins in every game are virtual, carry no monetary value and can never be bought, sold, withdrawn or exchanged. You will not find a coin shop or a payment page anywhere on the cliff, no prize of real-world value is on offer, and success here does not imply future success at real-money gambling.

No real moneyNo prizesNo in-app purchasesNo withdrawals18+ only

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