Slots Like Bill & Coin 2 Mummy Mischief: Bone Wilds, Dice Rolls and Three Bonus Modes
Relax Gaming sent its talking banknote and its grinning coin into a tomb for the sequel, and Bill & Coin 2: Mummy Mischief landed on 2 September 2025. The grid is 6 reels by 4 rows with 4,096 ways to win, the headline return is 96.10% and the ceiling is 15,000x your stake. Cascades do the heavy lifting here. Every clear nudges a win multiplier up by one, Coin symbols carry their own values and pay once they reach the bottom row, and a gold Bone Wild can set off a dice roll worth anything from x1 to x6. Stakes run from £0.10 to £60, Relax rates the variance between medium and high, and the bonus hands you a choice of three modifiers rather than a fixed round. If you are looking for slots like Bill & Coin 2: Mummy Mischief, the picks lower down share either the tumble maths or the sand and scarabs.
Where to Play
18+ only. T&Cs apply. Please gamble responsibly.
How the Game Works
Reviewed by Brian TaylorPublished: July 2026
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The reels sit in a painted blue and gold frame parked in front of the Sphinx, with Bill in a pharaoh headdress on the left and Coin loafing about on the right. Symbols land, matching ones on adjacent reels from the leftmost reel pay out, and the winners then vanish so fresh symbols can drop into the gaps. The first paid combination of a spin sets the win multiplier to x1, and every extra clear in the same sequence adds another point to it, so a four or five step tumble is where the base game finally starts to look interesting.
The part that separates this sequel from the first game is the coin economy. Gold Coin symbols land showing a value, x1 and x2 being the common ones, and they sit on the grid instead of paying immediately. Each fresh cascade nudges them down a row. Reach the bottom row and the value is collected and applied. That gives an ordinary looking spin a slow burn to it, because a coin sat on the top row with two tumbles left to run is worth watching in a way that a dead symbol never is.
Bone Wilds are the other base game trigger. They arrive at random, substitute for the paying symbols, and hand you a dice roll. Whatever the dice shows, from one through six, is added to the running multiplier. Relax caps that boost at x6 in the base game, which is a sensible ceiling given how often the bones turn up. On top of all that sits the Upgrade Spins panel in the top left corner, a set of paid single spins covered further down.
Symbols and Paytable
The paytable keeps the fruit machine furniture the series was built on and dresses it in gold. Card royals in J, Q, K and A form are the filler and pay around 1x your stake for a full six of a kind, which is close to nothing on its own and only matters as tumble fuel. Above them sit cherries, a watermelon, a scarab wrapped bunch of grapes, a blue Egyptian bell and a red seven, paying between roughly 2x and 6x for six. The blue gem is the premium at about 10x for a full line of six. Those are modest numbers by 2025 standards, and deliberately so: the maths puts its money in the multiplier and the coins rather than in the symbol values, so treat the paytable as a starting point that gets multiplied rather than the main event.
Bonus Features Explained
Three Bonus symbols anywhere in view open the round. You get eight free spins, and before they start the game asks which of three modifiers you want to run. Relax has used a mode choice before, but the three options here are different enough from each other that the pick genuinely changes the shape of the round rather than shading it.
Sticky Coins
Every Coin that lands during the round stays put and nudges down one row per spin instead of per cascade, so far more of them survive long enough to reach the bottom row and be banked. This is the grinder’s choice. It rarely produces the screenshot moment, but it turns a flat eight spins into a steady accumulation and it is the mode least likely to hand you nothing at all.
Multiplier Ladder
A persistent multiplier climbs as the round progresses and does not reset between spins, with a documented ceiling of x500. Bone Wilds landing inside the round push it up faster. This is the swingiest of the three by a distance, because the last two spins of the eight are worth many times the first two, and a dry opening leaves the ladder too low to matter.
Book Bonus
One symbol is drawn at the start and expands to fill any reel it appears on, paying across ten lines rather than the usual 4,096 ways. Retriggering can add further expanding symbols, up to three running at the same time. Anyone who has played a book slot will recognise the rhythm instantly, and drawing a low value royal as your expanding symbol is the same quiet disappointment here as it is anywhere else.
The Super Bonus
A Super Scatter opens a bigger version of the round where all three modifiers run at once across the eight spins: sticky coins collecting, the ladder climbing and an expanding symbol in play together. That combination is where the 15,000x figure comes from. It is rare, and Relax has been careful not to make the standard bonus feel like a consolation prize, but the gap between the two rounds is wide.
Upgrade Spins and Bonus Buys
The panel in the top left corner sells single modified spins. Five times your stake guarantees a Bone Wild on the spin, ten times restricts the reels so only Bonus symbols and one guaranteed bonus land, and twenty five times fills an entire row with Coins. Above those sit the full purchases at 100x for the standard bonus and 500x for the Super Bonus, with the return quoted at 96.50% on the buy entries. Reviewers describe the 100x entry slightly differently, with at least one calling it a bonus pick rather than a straight buy, so read the panel in the build you are playing. British players will not see any of this: feature purchasing is not permitted at operators licensed by the Gambling Commission, so the Upgrade Spins panel and the buy buttons are switched off in Great Britain and the bonus has to be landed the ordinary way.
Pros and Cons
Pros
- The coin nudge mechanic gives ordinary base game spins a reason to keep watching, which the first game lacked.
- Three genuinely different bonus modes, not three shades of the same round.
- Character art and animation are a cut above the average Egyptian release, and the reels stay legible during long tumbles.
- A published hit frequency of 21.71% is unusually transparent for a studio to state at all.
- Stakes stretch from 10p up to £60, so it suits penny sessions and larger ones.
Cons
- Symbol values are low, so without the multiplier or a coin collection the reels feel dead.
- British players lose the Upgrade Spins panel and both buys, which is a real chunk of the design.
- Eight free spins is short, and the Multiplier Ladder mode in particular can end before it has warmed up.
- Relax also publishes 94% and 86% builds, so the 96.10% headline is not guaranteed at every operator.
- Egypt is heavily worked ground, and the theme does not hide that.
Game Screenshot
Demo Play
The demo below runs the real build in your browser with play credits, which is the only sensible way to find out whether the Multiplier Ladder or the Sticky Coins mode suits how you play before any money is involved. Do note that the demo may expose the Upgrade Spins panel that a British operator will not show you.
Game Information
Expert Take
Reception has been warm rather than ecstatic. Reviewers have consistently praised the presentation, with the two lead characters singled out as the reason the game stands apart in a genre that has run out of new pyramids, and the coin collection has been widely treated as a real upgrade on the original rather than a cosmetic one. The reservations are consistent too: the base game symbol values are thin, eight spins is not long, and the 15,000x ceiling looks modest next to the 100,000x Relax hung on Sloth Tumble. Scores have landed in the seven to eight and a half out of ten range depending on how much weight the reviewer put on the artwork versus the maths.
Similar Slots to Try
Four picks that either share the tumble and multiplier maths or put you in the same part of the world. None of them plays identically, which is the point.
NetEnt’s bandaged take on the Megaways engine, and the closest thing on the site to this game’s tomb setting with a variable reel count instead of a fixed 4,096.
The obvious reference point for a rising cascade multiplier. It climbs on every avalanche in much the same way, though the return is a lower 95.77%.
Push Gaming builds its tumbles around toppling stone blocks rather than falling symbols. A gentler 3,358x ceiling but a similar reliance on chained clears.
Play’n GO’s take on the same sand, with a 96.50% return and a free spins round that stacks multipliers on separate reel sets rather than one running total.
About the Developer
Relax has been trading since 2010, but the dates flatter it slightly: for the first eight years it was a platform and aggregation business, and its first self made casino games did not appear until 2018. That order matters, because the studio still distributes a great deal of partner content, and a game running on Relax infrastructure is not automatically a Relax game. Its own catalogue has a recognisable signature: grids that break, clear or expand, a running multiplier somewhere in the design, and a bonus that asks the player to choose something. The British side of the business runs under Gambling Commission accounts 37462 and 57758. Bill & Coin 2: Mummy Mischief sits in the friendlier half of that catalogue, closer in tone to a light comedy than to the harder edged tomb raiding the studio has also shipped.
The release that made the studio’s name, built on tumbling walls and a 46,656 way grid that keeps expanding as blocks clear.
The studio at its most extreme, with wooden blockers to break and a 100,000x cap that dwarfs anything the Bill and Coin series has aimed at.
Weather symbols turn fixed grid positions into counting wilds across 259 ways, another Relax design where the multiplier does the work rather than the paytable.
Bill & Coin 2: Mummy Mischief Key Stats
Bill & Coin 2: Mummy Mischief slot information last reviewed: July 2026
| Bill & Coin 2: Mummy Mischief Slot Info | |
|---|---|
| Name | Bill & Coin 2: Mummy Mischief |
| Provider | Relax Gaming |
| Developer Rank | 9th out of the twenty Relax Gaming records we hold. Rank it purely by ceiling and it would be fifth, since Sloth Tumble (100,000x), Wild Yield (50,000x), Beast Mode (25,000x) and Wild Chapo 2 (20,000x) all reach higher, but our ordering also accounts for how long a title has been settled in the directory and how many British operators stock it, and this one is a September 2025 arrival |
| RTP | 96.10% headline build. Relax also publishes 94% and 86% configurations, and quotes 96.50% on the purchase entries, so read the game information screen before playing |
| RTP Category | Medium-High |
| RTP Rank | Just above the floor of the site’s medium-high RTP band, which runs from 96.00% to 96.49%. At 96.10% it is in the bottom quarter of that range, not the top |
| Feature Description | Cascading wins across 4,096 ways with a win multiplier that climbs by one on every clear, Coin symbols that carry a value and pay once they nudge down to the bottom row, Bone Wilds that trigger a x1 to x6 dice roll, and eight free spins with a choice of Sticky Coins, a Multiplier Ladder to x500 or a Book style expanding symbol, all three combined in the Super Bonus |
| Feature Categories | Cascading Wins, Free Spins, Free Spins Mode Choosing, Free Spins Multiplier, Expanding Symbols, Sticky Symbols, Wild, Bonus Buy, 4096 Ways |
| Reels | 6 |
| Rows | 4 |
| Paylines | None. 4,096 ways to win, though the Book Bonus mode switches the round to 10 lines |
| Volatility | High (AskGamblers files it as high; Relax’s own material and several reviewers describe the variance as medium to high, which places it at the softer end of the band) |
| Volatility Rank | Sits at the gentler end of the site’s high volatility band, below the studio’s harder releases such as Sloth Tumble and Wild Chapo 2, helped by a published 21.71% hit frequency, roughly one paid spin in five |
| Min Bet | £0.10 |
| Max Bet | £60 |
| Max Win | 15,000x stake (£900,000 from the £60 maximum bet) |
| Release Date | 2 September 2025 |
| Slotslike Rank | New listing, not yet ranked among the site’s 4,300+ games (View Top 100) |
Slots with the Same Features
Three of this game’s tags have their own directories on the site, each with a couple of alternatives worth a look.
Games with Cascading Wins
Wins clear and fresh symbols drop into the gaps, the engine behind every multiplier step in this game. More in the cascading wins directory.
Pragmatic Play drops its wins through a pays anywhere grid rather than ways, but the tumble sequence and the multiplier bombs cover similar ground.
Blueprint sends its cascades underwater at a near identical 96.01% return, with a 10,000x cap that lands a little below this one.
Games with 4,096 Ways
Six reels of four symbols each, evaluated left to right without fixed lines. More in the 4,096 ways directory.
Yggdrasil uses the same 4,096 way count on a 6×4 board and pairs it with a 97.00% return, one of the higher figures in this group.
Playtech stretches 4,096 ways across a fantasy battlefield with a 32,000x ceiling, roughly double what the mummies are chasing.
Ancient Egypt Slots
Same sand, very different tone. More in the ancient Egypt directory.
Play’n GO’s take on the tomb keeps things sombre where this one plays it for laughs, with expanding symbols in the free spins.
NetEnt built an entire bonus round around collecting coin values, which makes it the closest thematic cousin to the coin economy here.
Frequently Asked Questions
How does the bonus work in Bill & Coin 2: Mummy Mischief?
Three Bonus symbols anywhere in view award eight free spins, and before the round starts you choose one of three modifiers. Sticky Coins keeps every Coin on the grid and nudges it down a row each spin, the Multiplier Ladder runs a persistent multiplier up to x500 that does not reset between spins, and the Book Bonus draws one symbol that expands to fill any reel it lands on and pays across ten lines. A Super Scatter opens a Super Bonus where all three run together over the eight spins.
What is the RTP of Bill & Coin 2: Mummy Mischief?
The headline configuration is 96.10%, which puts it just inside the site’s medium-high band of 96.00% to 96.49%. Relax Gaming also publishes 94% and 86% builds that some operators run, and the return is quoted at 96.50% when the bonus is entered through a purchase. Check the game information screen at your operator rather than assuming the headline figure.
What is the maximum win on Bill & Coin 2: Mummy Mischief?
15,000x your stake, which works out at £900,000 from the £60 maximum bet. Realistically that figure needs the Super Bonus, with sticky coins, a high ladder and an expanding premium all landing in the same eight spins. It is a theoretical cap, not a target.
Is Bill & Coin 2: Mummy Mischief high volatility?
Yes, we file it under high. AskGamblers lists it as high, and Relax Gaming’s own material describes the variance as medium to high, so it sits at the softer end of that band rather than the top of it. The published hit frequency of 21.71% supports the same reading, roughly one paid spin in five returning something, and it stays a good deal less punishing than the studio’s Sloth Tumble or Wild Chapo 2.
What are the best slots like Bill & Coin 2: Mummy Mischief?
For the rising cascade multiplier, Gonzo’s Quest Megaways is the closest match. For the tomb setting with a different engine, try Mummy Megaways or Legacy of Egypt. Tiki Tumble covers the chained clear maths from a different angle, and Coins of Egypt is the nearest thing to the coin collection idea.
Can I play Bill & Coin 2: Mummy Mischief for free?
Yes. The demo embedded on this page runs the real build with play credits, so you can try all three bonus modes before staking anything. Bear in mind the demo may show the Upgrade Spins panel and buy options that a Gambling Commission licensed operator is not allowed to offer you.
Who makes Bill & Coin 2: Mummy Mischief?
Relax Gaming. The supplier started out in 2010 as a platform and aggregation business and only moved into building its own slots later, and this is the follow up to its first Bill & Coin title. It went live on 2 September 2025.
Can I buy the bonus in Great Britain?
No. The Upgrade Spins panel and the 100x and 500x purchases are part of the game’s design, but feature buying is not permitted at operators licensed by the Gambling Commission, so British players will find those buttons removed and have to land the Bonus symbols in normal play.
Our Verdict on Bill & Coin 2: Mummy Mischief
The sequel earns its number. The original Bill & Coin was a pleasant enough tumbler with not much happening between bonuses, and the coin nudge fixes exactly that: there is nearly always a reason to watch the next cascade, even on a spin that has paid nothing yet. The three mode choice is well judged too, because Sticky Coins and the Multiplier Ladder genuinely suit different temperaments rather than being the same round with different wallpaper. What holds it back is the arithmetic at the bottom of the paytable and the eight spin length, and British players are asked to enjoy a design with a decent chunk removed. Take it as a mid-session game rather than a chase, play it at a stake you would happily spin for an hour, and it holds up well.
SlotsLike rating: 7.5/10