The heist in one paragraph
De Rat Heist is a winning ways slot from Backseat Gaming, released on 8 September 2026, built around a lock and refill sequence. Every time a winning connection forms, its symbols lock in place, all the non-winning symbols are destroyed, and new symbols fall into the gaps. The process repeats until no new winning connection appears.
Alongside that sequence sit wild symbols that always carry a multiplier from 2x to 10x. The published figures are an RTP of up to 96.01%, very high volatility, a 20.82% hit frequency and a maximum win listed at 10,000.
How the lock and refill sequence runs
The sequence is the heart of the game, and it follows five steps in a fixed order.
One: a winning ways connection is created on the grid. Two: every symbol involved in that connection becomes locked in place. Three: locked symbols stay on the grid while all non-winning symbols are destroyed.
Four: new symbols fall into the empty positions. Five: if those new symbols create a further winning connection, the cycle runs again. It only ends when a refill produces no new win.
The key detail is what survives. Unlike a standard tumble, where winning symbols are usually removed, De Rat Heist keeps the winners and clears everything else, so each refill gives the grid a fresh chance to extend the wins already locked.
Why keeping the winners matters
Locking the winning symbols means a spin can only build on what it already has. A three-symbol connection stays on screen while every other position is refilled, and any new matching symbols that land in the right places can grow that connection or form a new one.
That makes the refill a pure chance to add. The grid never loses a winning symbol mid-sequence, and the longer the chain runs, the more of the grid is made up of locked, winning positions.
The provider summary does not say exactly how wins are paid across a sequence, for example whether each step pays separately or the final locked state pays once. The demo's win display is the place to check this, because it affects how you read the numbers on screen.
Multiplier wilds
Wild symbols in De Rat Heist can land in all game modes, and they never arrive plain. Each one carries a multiplier of 2x, 3x, 4x, 5x, 6x, 7x, 8x, 9x or 10x.
Wilds follow the same locking rule as other symbols. If a wild would take part in a winning combination, it locks in place alongside the other winning symbols, so its multiplier stays on the grid for the rest of the sequence.
That interaction is where the bigger outcomes come from. A locked 10x wild that stays in position while fresh symbols fall around it can end up part of a larger connection than the one that first locked it.
Backseat Gaming does not state how the multipliers of several wilds combine when they sit in the same winning connection, or what the different game modes are. Both are details to confirm in the in-game rules.
RTP settings, volatility and max win
De Rat Heist is published with four RTP versions: 96.01%, 94.01%, 92.01% and 90.01%. The operator picks one, and the difference between the top and bottom options is six percentage points, so it is worth checking the information screen at your casino.
Volatility is rated very high. The 20.82% hit frequency works out to a win about once every 4.8 spins on average. The demo will show how many of those lock one connection and end after a single refill.
The maximum win is listed at 10,000. With single wild multipliers topping out at 10x, reaching the top end relies on long sequences and several locked wilds working together rather than one enormous multiplier.
Demo checklist
The free demo is useful here because the lock and refill sequence is easier to understand by watching it than by reading about it. Look for these things.
How long sequences run. Many will end quickly, so note how often a chain reaches three or more steps, since that is where locked symbols start to fill the grid.
Where wilds land and whether they lock. During a sequence, a wild that does not join a winning combination is not locked and is destroyed with the other non-winning symbols, so its multiplier is lost.
What the paytable says about the grid layout, number of ways, symbol values, bet range and how wild multipliers combine. None of these are covered in the provider summary.
Final view
De Rat Heist takes a familiar cascading idea and flips it, keeping winners and replacing losers. The result is a game where every spin that starts with a win has a built-in chance to grow, and multiplier wilds that lock in place add weight to longer sequences.
Key facts: winning ways, released 8 September 2026, RTP up to 96.01% with 94.01%, 92.01% and 90.01% versions, very high volatility, 20.82% hit frequency, 10,000 max win, and wilds carrying 2x to 10x multipliers in all game modes.
FAQs
What is the RTP of De Rat Heist?
De Rat Heist has a top RTP of 96.01%, with alternative versions at 94.01%, 92.01% and 90.01%. Casinos choose which version to offer, so the return can differ between sites. The game's information or rules screen should show which RTP is active, and it is worth checking before playing for real money.
How does the De Rat Heist feature work?
Whenever a winning ways connection forms, the symbols in it lock in place and all non-winning symbols are destroyed. New symbols then fall into the empty positions. If they create another winning connection, the process repeats, and it continues until a refill produces no further win. Winning symbols are kept throughout rather than removed.
What do the wilds do in De Rat Heist?
Wilds can land in all game modes and always carry a multiplier of 2x, 3x, 4x, 5x, 6x, 7x, 8x, 9x or 10x. If a wild would take part in a winning combination, it locks in place with the other winning symbols, so it stays on the grid for the rest of the lock and refill sequence.
What is the max win on De Rat Heist?
The maximum win on De Rat Heist is listed at 10,000. The largest results come from long lock and refill sequences where winning connections keep growing, helped by multiplier wilds of up to 10x that lock in place. Check the in-game paytable to see how the cap applies to your stake.
Is De Rat Heist high volatility?
Yes, Backseat Gaming rates De Rat Heist as very high volatility. Its hit frequency is 20.82%, roughly one win every five spins on average. Many sequences will lock one connection and stop, while the rarer long chains with locked multiplier wilds are where the bigger payouts come from. Expect uneven results over short sessions.
