A flooded building slip lit cyan down 20 lines. Three Rivet Heads anywhere bring 10 free spins at doubled pay, and further ones landing inside lengthen the round.
The games are free and always will be. The account exists so your 50,000 coins, your level and your daily missions survive between visits — and so we can confirm you are 18 or over before you spin.
Virtual coins. No real-money gambling, no prizes with real-world value, no in-app purchases. 18+.
All Google hands over is your verified email address and your first name.
Cyan Slip works down 20 lines on a single stake. Close to 34 spins in a hundred pay something back, most of it in small amounts. The feature is Clear Berth: three Rivet Heads anywhere bring 10 free spins at doubled pay, and further ones landing inside lengthen the round.
Clear Berth. Three Rivet Heads anywhere bring 10 free spins at doubled pay, and further ones landing inside lengthen the round.
Every game is played in free virtual coins. There is no real-money gambling, no win holds value beyond the page, and nothing is sold. A random number generator produces each result, with no regard for the result before it.
Measured by running this page's own engine for 5,000,000 spins: coin RTP 96.4%, hit frequency 33.9%, free spins about once in 122 spins, a win of 10x your stake or more about once in 91 spins. Coin figures only — no money is staked or returned.
Sign in to your free account. Choose the stake with minus and plus; it is split across 20 lines.
Press spin. A line pays when it matches from reel one rightwards.
Three Rivet Heads open the free round, where Clear Berth does the work.
A heavier session: fewer wins, and more weight behind them.
Wins arrive less often than on the lighter machines, and a dry run of twenty spins is ordinary rather than a sign of anything.
| Symbol | Five on a line | Same, as a share of the stake |
|---|---|---|
| 6,000× line bet | 300× your stake | |
| 3,000× line bet | 150× your stake | |
| 1,600× line bet | 80× your stake | |
| 900× line bet | 45× your stake | |
| 600× line bet | 30× your stake | |
| 360× line bet | 18× your stake |
The five card ranks (10 to A) pay the least. Three Rivet Heads anywhere open the free round. Three of a kind and four of a kind are both priced in the paytable.
Three Rivet Heads anywhere bring 10 free spins at doubled pay, and further ones landing inside lengthen the round.
This one pays less often than the lighter machines and puts more behind each win.
Five Hull Emblem on a line, and the Launch Cradle after it.
Four a day, new ones each morning, and any berth counts towards them. Optional throughout.
Play while it is fun and quit when it is not. Choose your finishing time before you begin, and break off every so often. If gambling of any kind is causing you problems, the National Gambling Helpline is free and confidential on 0808 8020 133, 24 hours a day, or visit GamCare and BeGambleAware. Read our responsible play policy.
Umber Dock is restricted to adults of 18 and over. Every coin is virtual and holds no monetary value: it cannot be bought, sold, withdrawn or exchanged. Nothing on the site is for sale, no prize of real value is offered, and a winning session here means nothing for real-money gambling.
If gambling is a problem, help is free and confidential: National Gambling Helpline 0808 8020 133, 24 hours a day · BeGambleAware · GamCare · Our responsible play policy