One corner open to anybody, two more once you keep a free journal, and every rule copied out in Nubbin’s notes.
Frondlight Tunnel is open to everyone: spin it on the home page or on its own page with free play coins. There is no name, email or password to give and nothing to tick.
Greenstone Hall and Tumblefern Spring open once you keep a free field journal. Its first page asks four things only: a nickname, an email address, a password, and a tick to say you are 19 or older. Nubbin never asks for a card, a home address or a phone number, because nothing in the valley costs anything. The journal does two jobs: it holds your coins and progress until you come back, and it keeps the reels among grown-ups. Tear it out, every page, with one button on your account page.
Your journal opens with 100,000 free coins, topped up by whatever Frondlight Tunnel paid you earlier on this device. One balance, one level and one set of missions then serve all three corners. The coins are virtual: no one can buy, sell, withdraw or exchange them for anything, and no win is worth anything in the real world.
Not one corner of the valley hides a payment page, and there are no in-app purchases to find either.
Every corner of the valley spins five reels by three rows. A win is read from the leftmost reel to the right, symbol by symbol on neighbouring reels, along paylines that never move. The stake is divided equally among the lines. Paytable amounts are counted in line bets, with one exception: the scatter, which is paid on the whole stake. If a line holds more than one win, only the biggest is paid.
| Bonus, by type | What it does on the valley reels | Where in the valley |
|---|---|---|
| Tumbling reels | Every winning symbol crumbles away like dry soil, the symbols above slide down, and new ones drop into the gaps. Each win in the same chain is worth more: x1 on the spin itself, then x2, x3, and x5 for every further tumble. | Tumblefern Spring |
| Fern-climb multiplier | In free spins the multiplier rises step by step and never sinks back while the round lasts. | Frondlight Tunnel |
| Jade-hold wild respin | Land a wild on a paid spin that wins nothing, and the wilds freeze where they fell while every other square spins again for free. | Greenstone Hall |
| Last-reel respin | Two scatters on a paid spin that otherwise pays nothing nudge the fifth reel into one more free turn, in case the third is close by. | |
| Double-pay free spins in the valley | The plainest bonus in the ferns: three scatters bring free spins, and every win inside them is paid twice. |
Each reel is a fixed strip of symbols, like the layers in a cliff face. When you spin, the random number generator built into your browser chooses an independent random spot on every strip. No earlier spin sways a later one, and nothing bends to your balance or the time you have spent playing.
Nubbin measures each corner’s return, hit rate and feature rate the slow way, by letting the game’s own code play millions of spins, and the results go into its paytable. Those figures belong to free coin play in this valley and reveal nothing about any real-money game.
Fern Fossil Valley is open only to adults aged 19 or over. Each reel in the valley turns on virtual coins of no monetary value, coins that can never be bought, sold, withdrawn or exchanged. Nubbin’s satchel hides no coin shop, the fern path passes no payment page, no prize of real-world value is on offer, and success here does not imply future success at real-money gambling.
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