One world on a guest pass, two more with a free account, and every rule set out in writing.
Balloon Post opens with a guest pass. It asks for no name, email or password: you tick that you are 18 or over and in the UK, accept the terms, and the pass runs for two hours with 100,000 guest coins.
A free account opens the other two worlds, and the form has just four fields: nickname, email address, password, and a tick to say you are 18 or over. You won’t be asked for a card, an address or a phone number, since the site has nothing to pay for. The account does two jobs: it keeps your coins and progress safe for your return, and it lets us keep the games for adults. One button on your account page deletes it, along with everything inside.
You begin with a free 100,000 coins, plus any winnings from a guest pass taken on this same device. Your balance, level and missions go with you into every world. Coins are virtual: nobody can buy, sell, withdraw or exchange them for anything, and your wins carry no real-world value.
You won’t find in-app purchases or a payment page on any part of the site.
Each world is five reels by three rows. Wins pay from left to right along fixed paylines, starting on the first reel and running across neighbouring reels. Your stake is shared equally between the lines, and the paytable values are set as multiples of the line bet — apart from the scatter, which is paid on the whole stake. Each line pays its highest win only.
| Feature type | What it does | Worlds |
|---|---|---|
| Tumbling reels | Winning symbols disappear, the others drop down, and fresh ones fall in from above. Each new win in the chain is worth more: x1 for the spin itself, x2 and x3 after that, and x5 for every tumble beyond. | Sorting Room |
| A multiplier that keeps climbing | During free spins the multiplier rises as the round goes on, and it never falls back before the round ends. | Balloon Post |
| Wilds that stick for a respin | When a paid spin wins nothing but lands a wild, every wild stays put and the rest of the grid spins again, free of charge. | Night Mail |
| Last-reel respin | When a paid spin wins nothing but shows two scatters, the fifth reel spins once more, free, looking for the third. | |
| Free spins paid double | The simplest bonus of the lot: three scatters start free spins, and each win inside them pays double. |
Every reel carries a fixed strip of symbols. Each spin chooses an independent random position on every strip, using your browser’s random number generator. Earlier spins never sway later ones, and nothing shifts with your balance or with how long you’ve been playing.
We measure the return of each world, along with its hit frequency and feature frequency, by running its own code for millions of spins, and print the results in its paytable. They apply only to coin play in these free games and tell you nothing about any real-money game.
Orbit Zen Play Quick is only for adults aged 18 or over. All play uses virtual coins with no monetary value, and nobody can buy, sell, withdraw or exchange them. The post office has no coin shop, you won’t find a payment page anywhere on the site, nothing of real-world value is handed out as a prize, and doing well here does not imply you would succeed at real-money gambling.
Want to talk about gambling? Help is free and confidential: National Gambling Helpline 0808 8020 133, open 24 hours a day · BeGambleAware · GamCare · How we look after play