What happens to a 3x Sticky Wild when a second Multihold grid is unlocked?

The Wild is copied into the corresponding position on the newly activated grid and retains its multiplier value, giving both reel sets access to the same established 3x Wild position.

Why are Wilds collected on the newest unlocked grid more important than Wilds on older grids?

Only Wilds landing on the most recently unlocked reel set become part of the current Sticky Wild progression. Those positions can later be copied forward when another grid is opened.

How many Bonus symbols are needed to move from one Multihold grid to the next?

Three Bonus symbols must be collected on the newest active grid. Once the third is collected, the next reel set becomes available and additional Free Spins are awarded.

How many extra Free Spins are awarded when another reel grid opens?

Every newly unlocked grid adds a random 1, 2 or 3 Free Spins, giving the feature additional time alongside the increased number of active reel sets.

Can Bonus symbols appear simultaneously on every unlocked grid?

No. Bonus symbols appear only on the most recently unlocked grid, concentrating progression towards the next Multihold level on that reel set.

How do several Dog House Wild multipliers combine on one payline?

Their values are added together. Two 3x Wilds create a 6x multiplier on a qualifying line, while a 2x and 3x Wild combine into 5x.

What is the advantage of unlocking all four grids early in the feature?

All four reel sets remain active for subsequent Free Spins, allowing each spin to generate separate winning combinations across four 5 by 3 grids while benefiting from copied Sticky Wild positions.

Does unlocking a new grid remove the Sticky Wilds from the previous one?

No. Existing Wilds remain sticky on the older grid and are also copied into corresponding positions on the newly activated reel set.

Does buying the bonus for 100x immediately unlock all four Multihold grids?

No. The purchase starts the normal feature with 7 Free Spins and one active grid. The remaining grids still require three collected Bonus symbols for each unlock.

Why can an early 2x or 3x Wild have much more influence than the same Wild landing near the end?

An early Sticky Wild can contribute to more remaining Free Spins and may also be copied into several later unlocked grids, allowing the same position and multiplier to affect multiple reel sets.

The Dog House Multihold

Name: The Dog House Multihold
Author: Pragmatic Play

The Dog House Multihold takes one of Pragmatic Play's most recognisable canine slots and turns its familiar Sticky Wild formula into a feature capable of running across four separate reel grids at once. The base game keeps the classic 5 reel, 3 row layout with 20 fixed paylines, multiplier Wilds worth 2x or 3x and the same cheerful suburban kennel setting. Once Free Spins begin, however, the game becomes progressively larger as Bonus symbols unlock additional grids and Sticky Wilds are copied forward into every newly activated reel set. With a 96.06% RTP, high volatility and a maximum payout of 9,000x the total bet, this version is built around creating a stronger Wild setup every time another grid opens. Regular wins require at least three matching paying symbols on consecutive reels from left to right, beginning on reel 1. Card ranks occupy the lower section of the paytable, while collars, bones and four different dog characters provide the premium values. The Rottweiler is the strongest regular paying symbol, while the wooden Dog House acts as the Wild and can appear only on reels 2, 3 and 4. Every Wild carries either a 2x or 3x multiplier. When a Wild contributes to a winning payline, its multiplier increases that payout. If several Wilds participate in the same winning line, their values are added together rather than multiplied. A 2x Wild and a 3x Wild therefore create a combined 5x multiplier. Three 3x Wilds participating in the same line would produce a 9x multiplier. The paw print Bonus symbol appears on reels 1, 3 and 5. Landing one on all three eligible reels triggers 7 Free Spins and awards an immediate 2x total bet prize. The feature moves away from the standard base game screen and introduces four separate 5 by 3 reel grids, although only the top left grid is active when the first Free Spin begins. Bonus symbols continue appearing during Free Spins, but only on the most recently unlocked grid. Every Bonus symbol that lands is collected towards the next Multihold level. Once 3 have been accumulated, another grid becomes active. The progression begins with the top left grid, followed by the top right, then the bottom left and finally the bottom right, allowing a maximum of four reel sets to operate simultaneously. Each newly unlocked grid also awards between 1 and 3 additional Free Spins. Reaching another Multihold level therefore provides two advantages at once. The number of active reel sets increases, creating more independent opportunities for paylines to win on every Free Spin, while the extra spins provide more time to develop the Sticky Wild setup and potentially unlock the next grid. Multiplier Wilds become especially important because Wilds landing on the newest active grid turn Sticky and remain in their positions for the rest of the feature. Their original 2x or 3x multiplier values remain attached to them. Those locked positions can repeatedly contribute to paylines across the remaining Free Spins rather than being useful for only one result. The clever part of the Multihold system appears when another grid is unlocked. Every Sticky Wild already present on the previous active grid is copied into the corresponding positions of the newly opened grid. The new grid therefore does not begin empty. It inherits the Wild structure that has already been created, including the multiplier values attached to those Wilds. New Sticky Wilds can then be collected on the latest grid before the next unlock takes place. This means the quality of early Sticky Wilds can influence the entire feature. A strong collection of 2x and 3x Wilds established before the second grid opens can be reproduced onto the second reel set, then potentially carried forward again as the third and fourth grids become available. If all four grids are unlocked, every Free Spin evaluates wins separately across all active reel sets, creating far more opportunities than the single grid available at the beginning. Where direct feature purchases are permitted, The Dog House Multihold includes a Bonus Buy costing 100x the total bet. The purchased feature begins with the standard 7 Free Spins and one active grid, so additional reel sets must still be earned by collecting Bonus symbols. The Bonus Buy RTP rises slightly to approximately 96.08%. The official game configuration currently supports bets beginning at 0.20 and reaching as high as 240, although maximum stakes can vary between operators. The Dog House Multihold has a hit frequency of 24.21%, meaning a theoretical winning result occurs on roughly one quarter of spins over a sufficiently large sample. Free Spins trigger naturally approximately 0.57% of the time, equivalent to around once every 175.54 spins. The probability of reaching the 9,000x maximum payout is approximately 1 in 5,266,088 spins. There is no Megaways engine or progressive jackpot. The entire identity of the game comes from taking the original Dog House Sticky Wild concept and letting the strongest Wild positions reproduce across an increasingly large four grid bonus.