Fender & Bender ClusterBreaker
Relax Gaming Slot Review
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Fender & Bender ClusterBreaker: Slot Overview
Scheduled for official release on 15 December 2026, with the playable demo arriving well ahead of launch, Relax Gaming’s Fender & Bender ClusterBreaker builds its entire premise around choosing your punishment inside a dark industrial impact bay. Set across a steel-plated grid of 5 reels and 5 rows with cluster pays, the game pairs high volatility and a 0.10 to 60.00 bet range with a 15,000x max win and a single base RTP of 96.10% regardless of which robot runs the floor. Flanking the frame are two articulated crash dummies who look lifted from a 1990s toy line by way of Portal‘s Aperture labs, presiding over a machine where steel cells violently shear apart on every spin. The surprise is how little that titular symbol-splitting mechanic accomplishes on its own: the paytable underneath is flattened so severely that even a massive cluster of top symbols barely moves the needle until one of the dummies reaches over to wake up a multiplier.
Fender & Bender ClusterBreaker: Slot Features
Whenever a cluster forms, winning symbols are removed, remaining symbols drop into the gaps while new ones enter from the top, and the round continues until no new cluster forms; any activated multipliers are collected over the whole spin and applied to the total at its end, while hitting the 15,000x cap immediately ends the round. Instead of expanding the outer frame or upgrading symbol tiers during those cascades, ClusterBreaker slices individual cells along diagonals, three-point stars, or crosses into 2, 3, or 4 mini-copies of the same paying symbol, wild, or coin. Splits can happen on every spin across base tumbles and bonuses alike, though a symbol cell can be broken only once. Because the paytable is heavily compressed across its bottom tiers, packing extra copies into a group mostly nudges hits from sub-stake clusters into middle bands that barely cover the bet, leaving your balance dependent on external multipliers rather than raw cluster size.
Cluster pays and the flat paytable
Five or more matching symbols touching horizontally or vertically form a win, paid across six size bands: 5-7, 8-10, 11-13, 14-16, 17-19, and 20+. The symbols bolted onto the grid lean into workplace gallows humour, and their visual hierarchy reflects how stingy those lower brackets are. Low pays are four coloured wrenches, blue, green, yellow, and red, laid over identical grey gears, creating a monotonous metallic palette that blurs together over time. High pays are safety plaques depicting stick figures getting electrocuted, dragged into cogs, flattened by a press, or run down by a cart, topped by Roger, the grinning plant boss in a tie and yellow hard hat. Wilds substitute for all regular symbols and can be split into multiple copies by ClusterBreaker, though they carry no standalone payout line on the table.
Every symbol on the board pays less than the stake in the 5-7 band, returning between 0.1x and 0.5x. Even with ClusterBreaker carving single squares into quartets, clearing 1x requires 8 to 10 symbols for Roger, 11 to 13 symbols for the four hazard signs, and 14 to 16 symbols for any of the wrenches. The progression up the ladder is uneven as well: Roger doubles at every bracket except the step from 11-13 to 14-16, where his payout inches from 2x to 2.5x, narrowing his lead over a bottom-tier wrench from fourfold to just 2.5 times. Landing a full 20-symbol cluster of the boss himself pays 10x the bet, while 20 wrenches pay 2x.
Fender vs. Bender mode
The two robots flanking the 5×5 frame aren’t just window dressing; swapping between them changes how the game handles multipliers and volatility at the exact same stake and 96.10% payback. Fender is painted hazard yellow with blue-framed safety glasses, while Bender is scuffed orange with a wide-eyed stare and a no-reverse road sign stencilled on his pelvis. In a sharp bit of character design, each robot wears the other’s right forearm, cobbled together from shared spare parts. Whenever you switch modes between spins, the pair physically trade places: the active dummy steps up to the right side of the frame while his partner walks into the back left corner and stands facing a blue hydraulic press and an overflowing drum of neon-green radioactive sludge, sulking until called back.
During play, multiplier gauges worth x2, x3, x5, x10, x15, x20, x25, x30, x35, x40, or x50 land dormant on the grid and apply to the spin’s total tumble win only when the dummy on duty activates them via the trigger box on the right upright of the reel frame. Fender adds activated values together (rated at 4 volatility bars on the select screen), while Bender multiplies them by one another (pushing the rating to 5 volatility bars). When no multiplier is activated, the two modes play the exact same spin.
Reaching the free spins
Three Bonus symbols trigger 10 free spins, but Relax walls off the outer columns. Standard Bonus symbols land exclusively on reels 2, 3, and 4, pay nothing on their own, and cannot be split by ClusterBreaker. Landing all three awards the 10-spin Fender Bonus or Bender Bonus depending on which dummy is currently standing at the controls. To reach the 10-spin Super Bonus organically, reels 2 and 4 must land standard Bonus symbols while reel 3 lands the dedicated Fender & Bender Super Bonus symbol, which appears on that middle reel alone.
Fender, Bender, and Super free spins
All three free spin modes start with 10 spins (plus 5 extra whenever three Bonus symbols land during the feature) and a persistent multiplier that begins at x1, dead weight until the first gauge fires. Once woken up, the multiplier carries across every spin without resetting, adding activated gauges in the Fender Bonus, multiplying them in the Bender Bonus, or running both dummies side by side in the Super Bonus, where Fender’s additions are calculated before Bender’s multiplications.
Because the bonus uses the exact same 5×5 grid and sub-stake paytable as the base game, early multiplier activations are essential to turn 0.1x and 0.2x wrench clusters into meaningful returns, whereas a dormant multiplier leaves the round working through small cluster pays that cannot dent a 150x or 500x entry fee. A minor visual rough edge shows up here too: once Fender’s yellow multiplier gauges transfer their numbers to the overhead display, their digital screens turn into stark black squares on the board.
Coins and the cash ladder
Two coin-driven features compete for space on the base grid. Landing 1 to 4 coins on a base spin gives an unscheduled chance to trigger the Max Win Cash Ladder, sweeping those coin values and any ClusterBreaker win from the spin onto a ten-rung multiplier ladder running 11x, 22x, 33x, 44x, 55x, 66x, 77x, 88x, 99x, and 15,000x. Because the rules do not guarantee activation even when 1 to 4 coins hit, those coins can sit on the board without triggering the climb.
Coin Respin Bonus
Pushing past that dead zone requires a fifth coin on the same spin: landing 5 coins anywhere on the 5×5 board starts the Coin Respin Bonus. All regular symbols are stripped off the grid while the triggering coins stay locked in place, leaving only blanks, copper and gold coins (landing at 1x, 2x, 5x, or 10x and eligible for ClusterBreaker splits), and x2, x3, x5, or x10 multiplier wilds that carry their own 1-to-3-life countdowns.
The round starts with 3 respins; the spin counter resets to 3 each time a new coin lands, and the feature stops once 3 consecutive spins deliver no additional coins (or if the win reaches the 15,000x cap). Whenever 5 or more coins touch horizontally or vertically, they merge into a single coin of their summed value multiplied by any attached wild, whereas multiplier wilds that run out of lives before touching a five-coin cluster disappear from the grid without paying.
The Supercharge menu and its currency caps
Relax packs its Supercharge store with an ante bet, single-spin modifiers, a mystery draw, and direct bonus buys. Turning on the 3x Enhanced Spins toggle adds 200% to the base bet at 96.10% RTP to boost feature frequency while disabling the rest of the menu. Above that sit two 10x single-spin modes at 96.10% RTP, Fender / Bender Bonus Reels and Fender & Bender Super Spins, where all paying symbols are removed so only Bonus symbols (and blanks) can land; in Super Spins, reel 3 allows only the Super Bonus symbol, guaranteeing that every bonus triggered is the Super Bonus.
For direct feature access, the menu offers four bonus buys that raise the RTP to 96.50% (Coin Respin at 100x, Fender or Bender Bonus at 150x each, and the Super Bonus at 500x) alongside a 150x Buy Mystery Bonus at 96.10% RTP that eliminates five out of six panels split between the four bonus rounds and two instant cash prizes. Rounding out the list at 96.10% RTP are the 250x Fender & Bender Mega Spins (one base spin with both modes active and at least one multiplier of each type) and the 1,000x Max Win Cash Ladder Spins (guaranteeing 1 to 4 coins and automatic ladder entry).
All of these options run into Relax’s flat currency ceilings of 180.00 for per-spin modifiers, 600.00 for Bonus Reels, and 30,000.00 for bonus buys. Those hard caps collide directly with the 0.10 to 60.00 bet selector: the 10x Super Spins lock out above 18.00, the 250x Mega Spins are disabled above a 0.70 stake, and the 1,000x Max Win Cash Ladder Spins can only be purchased at the 0.10 minimum stake. At a standard 1.00 bet, both the 250x and 1,000x options are already blanked out on the rail.
| Product | Cost (Multiple of Bet) | RTP | Max Playable Stake |
|---|---|---|---|
| Enhanced Spins | 3x | 96.10% | 60.00 |
| Fender / Bender Bonus Reels (Bonus symbols only) | 10x | 96.10% | 60.00 |
| Fender & Bender Super Spins (Super Bonus symbols on reel 3) | 10x | 96.10% | 18.00 |
| Coin Respin Bonus Buy | 100x | 96.50% | 60.00 |
| Fender Bonus Buy | 150x | 96.50% | 60.00 |
| Bender Bonus Buy | 150x | 96.50% | 60.00 |
| Buy Mystery Bonus (4 bonuses + 2 cash prizes, eliminates 5) | 150x | 96.10% | 60.00 |
| Fender & Bender Mega Spins | 250x | 96.10% | 0.70 |
| Fender & Bender Super Bonus Buy | 500x | 96.50% | 60.00 |
| Max Win Cash Ladder Spins | 1,000x | 96.10% | 0.10 |
Paying 1,000x for a single Max Win Cash Ladder Spin forces you down to a 0.10 stake (100.00 total cost) and guarantees a trip up the rungs, though the rules do not say whether a rung multiplies the collected total or is itself the prize.
Reused labels and workshop relatives
The ClusterBreaker name was previously stamped onto Midnight Marauder Clusterbreaker (May 2026), a 4×4 game with a 10,000x ceiling whose cell-splitting tag is repurposed here on a 5×5 frame. Within Relax’s wider 5×5 cluster catalogue, its 15,000x cap sits below Lure of Fortune (50,000x, also 96.10% RTP) and Blender Blast (20,000x), while dwarfing older 5×5 experiments like Jungle Reveal (1,000x) and Wildchemy (500x). Outside the studio, splitting individual cells into multiple symbol copies echoes the Ankh splitters in BGaming’s Khonsu Merge Up (6×4 ways, 10,000x), while building a persistent multiplier across a 5×5 cluster bonus tracks close to PG Soft’s Inferno Mayhem (25,000x).
The Supercharge menu and 10x Bonus Reels also appear in Money Train 5 (100,000x) and Monkey Gods of the Inca (96.10%, 10,000x), while the 15,000x top prize matches the ceiling on Bill & Coin 2: Mummy Mischief and Money Cart 4. Where Fender & Bender pushes harder is the price of its standard ante bet: while Money Train 5 and I’m a Celebrity: Bushtucker Trial charge an extra 50% (1.5x total bet) for Enhanced Spins, Relax charges triple the base bet (3x) here.
A 1,000x price tag on the Max Win Cash Ladder Spins, locked behind a 180.00 currency cap that renders the button unusable above a 0.10 stake, captures the split personality of Fender & Bender ClusterBreaker. The art department delivered a sharp, funny industrial playground where two mismatched crash dummies swap places on the shop floor, yet the math underneath starves the cluster grid of base value so thoroughly that splitting symbols into fours still pays fractions of the bet until a multiplier gauge wakes up. For anyone bypassing the base game, the 96.50% direct bonus buys, from the Coin Respin Bonus at 100x to the Super Bonus at 500x, carry a clear 0.40-percentage-point edge over the 96.10% return of spinning normally, running the 3x Enhanced Spin ante, or chasing unguaranteed coin ladders.