When enough land, it fills its reels and pays on all ten lines.
In play
Ten lines and a paytable weighted towards the top symbol. The book is both wild and scatter. In free spins one symbol is picked to expand; if it is the explorer and fills all five reels, that is the 5,000x maximum. If it is a card rank, the feature usually pays little.
Who it suits
Experienced players who understand that most sessions on it lose and a few win heavily.
Specification
Detail
Value
Developer
Play'n GO
Released
2016
Default RTP
96.21%
Volatility
High
Layout
5 reels, 3 rows
Ways to win
10 paylines
Maximum win
5,000x
Main feature
Expanding symbol
What it costs
Stake
Spins
Staked
Average cost
£0.1
200
£20
£0.76
£0.2
200
£40
£1.52
£1
200
£200
£7.58
A long-run average at the default RTP. Any one session can differ widely.
Top prize at the UK limit
5,000x at the £5 maximum stake is £25,000. At £2, for ages 18 to 24, £10,000. Arithmetic, not a record of wins.
Significant terms: 18+. New customers only. Opt-in required. 50% deposit bonus up to £100 on first deposit. Minimum deposit £20. 10x wagering on the bonus amount. Maximum bet or spin £5. Bonus valid for 7 days. Game, play and payment method restrictions apply. Full T&Cs apply. BeGambleAware.org
Read the Casumo reviewLicence: Recro Limited, UKGC account 61549. Offer checked 5 October 2026.
Significant terms: 18+. New players only. Offer runs 01/10/2026 to 01/02/2027. Deposit (certain types excluded) and bet £10+ on slot games to get 100 free spins (selected games, £0.10 each, 48 hrs to accept, valid 7 days). No wagering on free spin winnings. Deposits by Neteller, PayPal, Paysafe, Skrill, prepaid cards and certain debit cards do not qualify. Restrictions and T&Cs apply. BeGambleAware.org
Read the Coral reviewLicence: LC International Limited, UKGC account 54743. Offer checked 5 October 2026.
Significant terms: 18+. New customers only, from 14/11/25 until further notice. Certain deposit methods excluded. Deposit and spend £10+ on slots for 50 free spins a day during the first 10 days after first deposit and registration (max 500, £0.10 each, selected games, claim before 23:59 each day, valid 7 days). No wagering. Prepaid cards, PayPal, Paysafe, Neteller, Skrill and Moneybookers deposits do not qualify. Restrictions and T&Cs apply. BeGambleAware.org
Read the Ladbrokes reviewLicence: LC International Limited, UKGC account 54743. Offer checked 5 October 2026.
Slot figures are developers' published defaults, each confirmed against two sources; the version at your casino can differ. UK land-based stake and prize limits and online rule dates were checked against Gambling Commission and licensing authority sources on 6 October 2026. History follows commonly cited accounts. Offer terms dated 5 October 2026. How we check. 18+. Free help: 0808 8020 133 or safer gambling.
Gambling can be addictive. Free, confidential help is available 24 hours a day from the National Gambling Helpline on 0808 8020 133. Visit BeGambleAware.org and GamCare, or block yourself from all UK-licensed gambling sites with GAMSTOP.
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