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Release the Kraken 2 — Free Demo & Game Details

Slot game

Slot by Pragmatic Play

#R

96.03%

RTP

Standard setting

#MWM

5000x

Maximum win multiplier

#V

high

Volatility

Level 5 of 5

#BR

0.2–240 operator-dependent units

Bet range

#P

20

Paylines

#GG

5 × 4

Game grid

RTP profiles

Standard setting

Base game

96.03%

The return assumes the player rejects every Kraken Offer.

Ante bet at the standard setting

Organic feature choice

96.01%

Higher setting

Casino setting

96.5%

The rules screen shows which setting a casino runs.

Lower setting

Casino setting

93.98%

The rules screen shows which setting a casino runs.

Ante bet at the lower setting

Organic feature choice

94.01%

Our verdict

0xPlaySlots opinion
6.3/ 10our score for this game

The free spins round is the game's one strong idea because wilds that never leave and GOLDEN WILDs that raise the multiplier let a long round snowball. The Kraken Offer wraps that round in a choice with only one correct answer and a short draw ends it before the wilds build. Around it sit a flat paytable and a 5,000x cap while the buys return barely more than base play. It is a competent sequel whose best idea is held back by its maths, and 6.3 reflects that.

About Release the Kraken 2

Twenty fixed lines on a 5x4 grid and a flat paytable mean line hits alone rarely move a session. The base game lives on three random features and Shifting Stacked Wilds is the strongest of them. Each reel-high wild on reels 2 to 4 gains 1x for every position it nudges and the spin pays the sum of those multipliers. Guaranteed Win turns a spin with no win into a 20x to 60x payout while Wild Respin runs on as long as each respin adds a wild. Free spins open with the Kraken Offer, a chest game that fixes spins and multiplier from a pool that improves with each extra BONUS symbol. Every offer is the rounded-down average of the chests left and the game's return assumes the player rejects all of them. An offer averaged over the whole three-BONUS pool is 8 spins at 3x, worth 24 spins-times-multiplier against about 29 for the average chest. Inside the round every wild that lands stays and roams across 40 lines and each GOLDEN WILD adds 1x to the multiplier. Nothing retriggers, so the chest result fixes the round's length and a four-spin draw ends before the wilds have time to build.

Release the Kraken 2 free demo

Launch the provider-hosted demo in a new tab.

Editorial takeaways

  • Rejecting every Kraken Offer is the strategy the game's return is built on.
  • Guaranteed Win pays between 20x and 60x the total bet.
  • A round ends the moment its total win reaches 5,000x the bet.
  • The chance of reaching the cap is 1 in 18,183,695 spins at the 96.03% setting.
  • The ante raises the stake from 20 to 25 coins, lowers the return to 96.01% and switches off both buys.
  • Neither free spins buy is offered in the UK version of the game.

Limitations and version notes

  • Free spins cannot retrigger, so a four-spin or five-spin draw at 1x or 2x ends before the sticky wilds can build anything.
  • The 250x VIP buy only guarantees the strongest chest pool, and that pool still holds 8 spins at 1x and 6 spins at 2x.
  • A 5,000x cap is low for a game at five out of five volatility, and with ante on it falls to 4,000x the larger stake.
  • The same game runs at 96.50% at some casinos and 93.98% at others, so the rules screen is worth checking before playing.

Features & Themes

Game features

Random FeaturesStacked WildsWild RespinGuaranteed WinFree SpinsSticky WildsmultipliersPick BonusAnte BetBonus Buy

Themes

oceanSea Monsters

Game mechanics

Kraken WILD

Base + bonus#01

Lands on the reels like any other symbol.

It substitutes for every symbol except BONUS and also pays as the top symbol in its own right.

Outside Wild Respin and free spins, a wild lasts for one spin.

BONUS scatter

Base game#02

Three or more BONUS symbols land anywhere on the reels.

Free spins start, and the number of BONUS symbols picks which chest pool the Kraken Offer uses.

Nothing carries over beyond the choice of pool.

Each extra BONUS symbol swaps the two weakest combinations in the pool for two stronger ones.

  • 3 BONUS symbols give the weakest pool
  • 4 BONUS symbols give the middle pool
  • 5 BONUS symbols give the strongest pool

Random base game features

Base game#03

Any base game spin has a chance to hit one of the random features.

One of Wild Respin, Shifting Stacked Wilds or Guaranteed Win is added to the spin.

Only the spin or respin sequence it lands on.

Shifting Stacked Wilds

Base game#04

Hits at random on a base game spin.

Each stacked wild nudges until it covers its reel and gains 1x per position moved, and the spin's wins are multiplied by the sum of those multipliers.

This spin only.

  • Reels 2, 3 and 4 only
  • +1x per position moved, per stacked wild
  • Wins multiplied by the sum of all stacked wild multipliers

Guaranteed Win

Base game#05

Hits at random on a base game spin that would otherwise pay nothing.

The Kraken changes the symbols into a result that pays between 20x and 60x the total bet.

This spin only.

  • Minimum 20x total bet
  • Maximum 60x total bet

Random BONUS explosion

Base game#06

Hits at random after a base game spin.

An explosion puts 3 BONUS symbols on the screen and awards free spins.

Nothing carries over beyond starting free spins.

It always lands exactly three BONUS symbols, so it always opens the weakest chest pool.

Kraken Offer

Bonus#07

Runs before every free spins round, whether the round was triggered or bought.

A chest game fixes the round's number of free spins and its starting multiplier.

The chosen combination holds for the whole round.

One random chest is set aside unopened at the start, and each rejected offer lets the player clear a block of chests. The last choice is between the set-aside chest and the one left over.

  • 16 chests per pool
  • Chests cleared in blocks of 4, 4, 3 and 3
  • Each offer is the rounded-down average of the chests still in play
  • The return assumes every offer is rejected
  • 3 BONUS pool holds 4 to 15 spins at 1x to 6x
  • 4 BONUS pool holds 5 to 20 spins at 1x to 10x
  • 5 BONUS pool holds 6 to 20 spins at 1x to 10x

Free spins multiplier

Bonus#08

Set by the chest the player ends with in the Kraken Offer.

Every free spins win is multiplied by it.

It lasts the whole round and can only go up.

  • Starting multiplier between 1x and 10x
  • +1x for each GOLDEN WILD

40 lines in free spins

Bonus#09

The free spins round starts.

The round plays on 40 lines and special reels instead of the base game's 20 lines.

The whole free spins round.

Roaming sticky wilds

Bonus#10

A WILD lands during free spins.

The wild stays on the screen and moves to a random position after each spin.

Until the free spins round ends.

Wilds pile up as the round goes on, so a long round is worth more than its spin count alone suggests.

GOLDEN WILD

Bonus#11

A GOLDEN WILD lands during free spins.

The round multiplier rises by 1x, and the symbol substitutes and pays like a normal wild.

The extra 1x lasts for the rest of the round.

  • +1x per GOLDEN WILD

Ante bet

Base game#12

The player switches the bet multiplier from 20x to 25x.

Each spin costs 25 coins instead of 20, and BONUS symbols land more often.

For as long as the ante stays on.

  • Stake up by 25%
  • Return 96.01% at the standard setting
  • Return 94.01% at the lower setting
  • Both free spins buys switched off
  • Max win 4,000x the ante stake

5,000x win cap

Base + bonus#13

A round's total win reaches 5,000x the bet.

The round ends at once, the win is paid and any remaining features are forfeited.

It ends the round.

  • 5,000x the total bet
  • 4,000x the stake with ante on
  • 1 in 18,183,695 spins at the 96.03% setting
  • 1 in 15,386,461 spins with ante on

Bonus rounds

Free Spins

Free spins
No retrigger

Three or more BONUS symbols, a random BONUS explosion or a buy starts the round.

The Kraken Offer sets the number of spins and the multiplier before the first spin. Every win on the 40 lines is multiplied, and each GOLDEN WILD adds 1x for the rest of the round. Wilds that land stay and move to new positions after each spin. The round cannot retrigger, so its length is fixed from the start.

  • Uses Kraken Offer, Free spins multiplier, 40 lines in free spins, Roaming sticky wilds, GOLDEN WILD, 5,000x win cap.

Wild Respin

Respins

Four or more WILD symbols land on a base game spin.

Every respin that adds at least one new WILD awards one more respin.

After the triggering win is paid, the wilds stay and move to random positions while every other symbol respins. Wins are paid after each respin, and the sequence ends on the first respin that adds no wild.

Feature purchases

Purchase options and their bonus rounds

Feature-purchase costs can exceed the ordinary maximum stake shown for the base game.

STANDARD FREE SPINS

Bonus Buy

It starts free spins with 3 to 5 BONUS symbols at random, so any of the three chest pools can come up. The ante has to be off to buy it.

Cost
100x stake
RTP for this option
96.03%
Linked bonus round
Free Spins
Try in Demo

VIP FREE SPINS

Bonus Buy

It guarantees 5 BONUS symbols and so the strongest chest pool, which still holds 8 spins at 1x. The return is almost the same as the 100x buy, so the extra cost buys variance rather than value.

Cost
250x stake
RTP for this option
96.05%
Linked bonus round
Free Spins
Try in Demo

Event frequency

Maximum-win probability

1 in 18,183,695 spins

Scope
Reaching the 5,000x cap on a standard spin at the 96.03% setting

Screenshot Gallery

In-game screenshots

Release the Kraken 2 game screenshot 1
Release the Kraken 2 game screenshot 2
Release the Kraken 2 game screenshot 3
Release the Kraken 2 game screenshot 4
Release the Kraken 2 game screenshot 5

Paytable & Symbol Values

Winning combinations and symbol payouts

Symbol payouts

#PT
Symbol2345
Acelow·0.3×0.5×2×
Kinglow·0.3×0.5×2×
Queenlow·0.2×0.4×1×
Jacklow·0.2×0.4×1×
Tenlow·0.2×0.4×1×
Sharkhigh0.5×2.5×5×10×
Pufferfishhigh·2×3×5×
Anglerfishhigh·1×2×4×
Eelhigh·0.5×1×3×
Wildwild0.5×5×10×20×
Golden Wildwild0.5×5×10×20×

Golden Wild. Appears in free spins and adds 1x to the round multiplier.

Pays are multiples of the total bet on a standard 20-coin spin. Line wins do not grow with the ante, so against the 25-coin ante stake each pay is worth four fifths of the figure shown.

Special symbols

#SS
BONUS
The scatter lands on all reels and has no line pay. Three or more start free spins, and their count picks the chest pool.
Shifting Stacked Wild
A reel-high wild that appears on reels 2 to 4 during Shifting Stacked Wilds. It nudges until it fills the reel and gains 1x for each position moved.

Our Team Reviews

Signed reviews from our team

1 review
FEATURED

Release the Kraken 2 surrounds one good free spins round with choices that are traps or washes

JM

James Miller

Senior Slots Reviewer at 0xPlaySlots

September 23, 2026
6.3/10

A refined round surrounded by decisions that do not pay

I read Release the Kraken 2 as one good idea and four decisions, and the arithmetic turns each decision into a trap or a wash. The good idea is the free spins round. The decisions are the Kraken Offer, the ante and the two buys, and not one of them lifts the 96.03% standard return by more than two hundredths of a point. That is my case for a 6.3: the round earns its place, and what the game builds around it either costs the player or changes nothing.

The round is not an invention. The Dog House keeps every wild that lands in its free spins until the round ends, and Wild West Gold does the same, so each spin plays on the board the previous one left. Here the wilds roam to a random position after each spin, and each GOLDEN WILD lifts the round multiplier by 1x for the rest of the round, so on 40 lines the board and the multiplier grow together. I rate both as sound refinements of a sticky-wild round. The damage comes from what the sequel puts in front of it: a chest game that fixes the round's length and starting multiplier before the first spin, in a round that cannot retrigger.

The Kraken Offer is a random draw dressed as a negotiation

Each chest pool holds 16 chests. One is set aside unopened, the player clears 14 more in blocks of 4, 4, 3 and 3, and the last choice is between the set-aside chest and the one left over. Neither of those two is opened before the pick, so whichever one the player keeps is worth the pool's average chest in expectation. Declining every offer, the play the return assumes, reduces the chest game to a random draw from sixteen chests with extra clicks in front.

I find no reason to accept an offer. Each is the rounded-down average of the chests still in play, and rounding down only ever moves against the player. Averaging costs something subtler as well. Each WILD that lands in the round stays until the round ends, so the ninth spin of a long round plays on a board holding the wilds of the first eight, and a round's value grows faster than its spin count. An offer that averages the spin count shaves off the long draws that carry the round and swaps them for a middle length the wilds have less time to use.

The pool matters as much as the decision. Three BONUS symbols give 4 to 15 spins at 1x to 6x, four give 5 to 20 spins at 1x to 10x, and five give 6 to 20 spins at 1x to 10x. The random BONUS explosion lands exactly three, so that route in opens the weakest pool every time, where the bottom of the range is four spins.

The ante sells pace and charges for it everywhere else

The ante raises the stake from 20 coins to 25 so that BONUS symbols land more often. The rest of its numbers, once priced per coin, move the wrong way or stay put. The return drops from 96.03% to 96.01%. Line pays do not grow with the ante, so against the larger stake each is worth four fifths of its face value. The cap falls to 4,000x the ante stake, and 4,000 times 25 coins is 100,000 coins, exactly what 5,000x of a 20-coin spin comes to.

The cap odds say the same once they are priced per coin. At 1 in 18,183,695 standard spins of 20 coins, the cap comes once per 363.7 million coins staked on average. With the ante on it is 1 in 15,386,461 spins of 25 coins, once per 384.7 million coins, about 6% more stake for each cap. The ante makes the cap roughly 18% likelier per spin by charging 25% more for every spin, and it switches off both buys while it is on. I would leave it off.

The VIP buy pays 150x more for the same 5,000x

I price both buys the same way, by what they return and how far their ceiling sits above their cost. The 100x STANDARD FREE SPINS buy returns 96.03%, the same as base play. On average it hands back 96.03x, a cost of 3.97x per purchase, which is exactly the edge the base game takes from 100x of spins. It is fairly priced in the narrow sense that buying is no worse than spinning, and no bargain. It opens the round with three to five BONUS symbols at random, so any pool can come up, and its best case is the 5,000x cap, 50 times its own cost.

The 250x VIP FREE SPINS buy returns 96.05%. On average it hands back 240.125x, a cost of 9.875x per purchase, close to two and a half times the loss on the cheaper buy for a return two hundredths of a point higher. Its best case is the same 5,000x, now only 20 times its cost. What the extra 150x buys is the five-BONUS pool, and that pool still holds 8 spins at 1x and 6 spins at 2x. Measured as spins times starting multiplier those chests are worth 8 and 12, well under the roughly 29 of an average chest in the three-BONUS pool that a random explosion hands out without a purchase. The VIP buy raises the money riding on a round two and a half times and leaves the ceiling where it was. That is variance bought at full price, with less headroom for every coin spent.

The 5,000x cap is a free spins number

The paytable cannot approach the cap on its own. Five wilds pay 20x, so a base-game screen with five wilds on all 20 lines pays 400x, 8% of the cap. I count seven of the nine regular symbols paying 4x or less for five on a line. Guaranteed Win tops out at 60x. Inside the base game, the Shifting Stacked Wilds multiplier and a chain of Wild Respins are what can carry a win past 400x.

Free spins double the lines to 40, so a full screen of wilds pays 800x before the multiplier, less than a sixth of the cap. The multiplier supplies the rest. At 6x, the top start in the weakest pool, that full screen comes to 4,800x, still short. At 10x, the top start in the other two pools, a single spin needs 500x of line wins, 25 of the 40 lines paying five wilds, to end the round at the cap by itself. The practical route is the one the round is built for: a long draw, wilds piling up and GOLDEN WILDs lifting the multiplier while the total accumulates across spins.

That makes the chest draw the real gatekeeper, and the cap a small share of what the game pays. A 1 in 18,183,695 chance of 5,000x is worth about 0.000275 of the stake per spin, under three hundredths of a percentage point of the 96.03% return, so more than 99.9% of the return comes from wins below the cap. For a game at five out of five volatility, 5,000x is a low ceiling, and a draw of four or five spins at 1x or 2x gives the roaming wilds very little time to pile up.

It suits a patient player at the right casino

The game suits someone who wants a sticky-wild round in the Dog House mould with a rising multiplier on top, and who is content to wait for it at the standard stake, with the ante off and every Kraken Offer declined. That player gets the full 96.03%, or 96.50% where a casino runs the higher setting, and the rules screen shows which. At the 93.98% setting the same game returns 2.52 points less than at 96.50%, 2.52x more lost on average per 100x staked, which is more than a hundred times the largest gain any in-game choice offers.

I would send bonus buyers elsewhere. The 100x buy is return-neutral, the 250x buy spends two and a half times as much against the same ceiling, and neither is offered in the UK version. Anyone chasing a high ceiling belongs elsewhere too, because 5,000x at five out of five volatility is modest. My 6.3 comes down to this: the one thing the game does well, a round that snowballs, has its length set by a random chest and its top set by a low cap, and every lever handed to the player around it is a trap or a wash.

Pros

  • Wilds that land in free spins stay and roam, so a long round builds on everything before it.
  • Each GOLDEN WILD adds 1x to the round multiplier for the rest of the round.
  • The 100x buy returns 96.03%, level with base play, and its 5,000x ceiling is 50 times its price.
  • Guaranteed Win turns a base spin that would pay nothing into a 20x to 60x payout.

Cons

  • The Kraken Offer has one right answer, and the chest draw then fixes a round that cannot retrigger.
  • The 250x VIP buy returns 96.05% and its ceiling is only 20 times its price.
  • The ante costs 25% more per spin for the same 100,000-coin ceiling and a 96.01% return.
  • A 5,000x cap is low for five out of five volatility.
  • Casinos run it anywhere from 93.98% to 96.50%, a gap of 2.52 points.

Verdict

The roaming sticky wilds and GOLDEN WILDs give the free spins round a real snowball, but a chest draw fixes its length and the cap stops it at 5,000x. The choices around that round are traps or washes, so 6.3 fits a competent sequel held back by its maths.

#GP

Game Provider

#GD

Game Details

Information

Pragmatic Play
November 3, 2022
Video Slot
20 paylines