Pragmatic Play's first game is the focus of this manual regarding UK stake rules, maximum win, and RTP. It isn't about Release the Kraken Megaways or Release the Kraken 2. Search results frequently combine the three titles, and their statistics vary.
A few basic facts are established. According to Pragmatic Play, the original is a video slot featuring 20 lines and a 4×5 layout, where random features can be triggered during any spin. A progressive multiplier and roaming Wilds are part of its Free Spins round. A free demo is available on the provider's own site, and the RTP is listed as 96.50%.
What other sites omit is addressed in the remainder of this piece: how the rules for slots in Great Britain affect your actual play, and which figures apply to each specific game.
Which figures belong to the original
Pragmatic Play's page states the layout, the line count and the 96.50% RTP. It gives no volatility, stake range, maximum win or release year.
Those details come from an independent review of the original game:
- Volatility: high.
- Maximum win: 10,000× the stake.
- Stakes: from 0.20 to 100.
- Free-spins buy: 100× the total bet.
Treat these as the review's claims, not the provider's specification.
Other RTP figures in circulation, such as 96.08%, 95.07% and 94.07%, belong to Release the Kraken Megaways. That is a separate medium-volatility game with up to 117,649 ways. The provider's page shows no alternative RTP versions for the original. To see the RTP of the copy in front of you, check that game's help or information screen.
How the features work
The Bonus, Chest Bonus and Free Spins symbols aren't replaced by the Wild, but it substitutes for all other symbols, according to that same review. Base game play can see three random modifiers land:
- Infectious Kraken Wilds: Wilds expand to nearby symbols.
- Colossal Kraken Wilds: A 3×4 Wild appears randomly on the reels.
- Kraken Locking Wilds: Multipliers or additional Wilds can be added via chest picks.
From reels 1, 3 and 5, two bonus rounds are triggered:
- Roaming Kraken Free Spins: The Free Spins symbol on reel 5 and a Bonus symbol on reels 1 and 3 activate this. Up to 12 spins on 40 paylines are granted through chest picks. The multiplier is raised by each Wild, up to 10×, as Wilds roam the reels.
- Sunken Treasure Bonus: A Chest Bonus symbol on reel 5 and a Bonus symbol on reels 1 and 3 activate this. Cash prizes are won by picking chests until COLLECT shows up.
How GB rules change the game
A business must possess a Gambling Commission remote casino licence for online slots to be legal in Great Britain. Due to the requirements of that licence, the version of the game you encounter differs from the provider's standard build in several ways.
Stake caps
For those aged 18 to 24, a £2 limit applies to one game cycle, while a £5 cap exists for players 25 and older. The Commission's stake-limit guidance and the Gambling Act 2005 (Operating Licence Conditions) (Amendment) Regulations 2025 establish these limits. Any game that fits the definition of a slot is subject to them, regardless of its name.
As a result, for younger adults, the review's range of 0.20 to 100 is cut off at £2, or at £5 for others.
The free-spins buy
The stake includes the cost of purchasing a feature. For those aged 18–24, a 2p total bet is the maximum that allows a 100× buy to stay within the cap, while for others, it's 5p or less. Both of these amounts fall under the review's 20p minimum.
At any listed stake, the buy would surpass the cap, so it can't be played in GB. The game instance determines whether the button is displayed by an operator.
Spin controls and pace
- No autoplay (RTS 8A). Each spin requires a manual start.
- No turbo, quick spin or slam stop (RTS 14E). It is prohibited to accelerate the delivery of a result. The Commission allows exceptions for feature or bonus rounds that do not require further wagering.
- A minimum of 2.5 seconds must pass between spins (RTS 14), measured from the beginning of one game cycle until the following one starts.
What counts as a win
Win animations or sounds shouldn't play if a spin results in your stake or a smaller amount (RTS 14F). When an Infectious Wilds payout is small and only equals your bet, it should be handled without noise.
Account-level controls
The game doesn't provide these features; they are account protections:
- Financial limits: Licensed operators are required to provide simple-to-use restrictions and ask you to create one during registration or your initial deposit.
- Deposit limits: Starting 30 June 2026, operators are obligated to provide a cap based only on your total payments.
- Self-exclusion: GAMSTOP applies to all licensed online operators, and companies are required to refresh their records every 24 hours.
Keep to a limit if you play, and set one before you start spinning.