Bill & Coin (Relax Gaming) Slot Review

Bill & Coin: Slot Overview
Bill & Coin, released on January 9, 2024, is a high-volatility online slot developed by Relax Gaming, featuring a quirky duo of anthropomorphic currency mascots—Bill (a dollar note) and Coin (a shiny gold coin). Despite its minimalistic first impression, the game reveals surprising depth once you start spinning, with a suite of diverse and layered bonus features that elevate it beyond its cartoony appearance.
Played on a 6-reel, 4-row grid, Bill & Coin offers 4,096 ways to win and supports bet ranges from €0.10 to €100 per spin. At its core, the game combines cascading wins, stacked multipliers, and three distinct bonus features, each with regular and super versions. With a maximum win of 10,000x the stake and a solid RTP of 96.1%, Bill & Coin blends playful charm with impressive feature complexity.
Design and Graphics
Bill & Coin doesn’t aim to overwhelm with flashy visuals or deep thematics—it prefers a clean, cartoon-style presentation with subtle visual humor. The slot uses a green, money-themed backdrop that’s both tidy and thematic, with icons representing cash symbols, fruits, and traditional slot imagery.The two titular characters, Bill and Coin, are animated and flank the grid. Bill is all folded confidence, while Coin tips his hat with a smirk—these two inject a lot of character into the experience without taking center stage. The grid itself is neat, framed in cash-styled gold, and while the reel symbols may seem like standard fare at a glance—fruits, bells, sevens—the real magic is in how they interact during play.
Though the visual style is relatively restrained compared to other Relax titles like Beast Mode or Iron Bank, the overall design serves its purpose well. The animations are smooth, and win sequences feel rewarding thanks to clean symbol collapses and the gradually rising multipliers.
Gameplay Mechanics
Bill & Coin is built around familiar but effective mechanics that get increasingly exciting as bonus features are triggered. Wins occur when matching symbols land on at least three adjacent reels starting from the leftmost side. This all takes place across a 6×4 grid with 4,096 ways to win, and all wins activate a tumble mechanic, where winning symbols are removed and replaced with new ones, offering the chance for consecutive hits.
Symbols and Payouts
Low pays: J to A card ranks – up to 1x for six of a kind
Mid/high pays: Grapes, watermelons, cherries, bells, sevens, and diamonds – six of a kind pays 2x to 10x
Wilds: Represented by the gold ‘W’ – substitute for all regular symbols
The game doesn’t rely on base game payouts to deliver big thrills—instead, the excitement comes from the win multiplier system and its three powerful bonus rounds, which create explosive potential especially when combined with tumbles and multipliers.
Sound and Music
The soundtrack in Bill & Coin is light and upbeat, tailored to the game’s cheeky aesthetic. The background music has a casual, jazzy tempo that keeps the mood buoyant without becoming repetitive. It never tries to over-dramatize the gameplay, instead offering a laid-back audio atmosphere that complements the cartoon style.
Sound effects on wins and feature triggers are crisp and cheerful—when the multiplier kicks in, the game cues a rising chime that enhances the anticipation of bigger payouts. During bonus rounds, the soundtrack builds subtly in intensity, adding to the thrill without overwhelming the experience.
Bonus Features
The true depth of Bill & Coin lies in its trio of bonus rounds, each offering a unique structure and strategic layer. Bonuses can be triggered naturally or through the bonus buy menu. Once triggered, players get to choose between the Coin Track, Multiplier Ladder, or Sure Win bonus modes. If triggered via a super scatter, the super version of the chosen bonus is activated.Win Multiplier
Available in both the base game and bonuses, this feature starts at x1 and increases by +1 with every consecutive win (up to x5). Once no more tumbles occur, the multiplier applies to the total win. In the Sure Win bonus, the multiplier can amplify the accumulated Sure Win pot.
Bonus Pick System
Triggered by 3 scatter symbols
Players choose 1 of 3 bonus features
Super Bonus triggers enhanced versions of these rounds
Coin Track Bonus
This mode begins with 4 coins surrounding the reels. Each spin moves the coins clockwise around a track, and when a coin completes a lap, it’s collected.
Coins can carry values, and enhancer symbols (e.g., x2, +20) can boost individual coins or the entire board
Collect symbols retrieve coin values (single, triple, or all)
Respin symbols add spins without advancing the track
The Super Coin Track version adds more enhancers and collect opportunities
Multiplier Ladder Bonus
Starts with 5 free spins and a 1x win multiplier
The multiplier increases with every win (or between spins) up to x500
+5 free spins awarded for every 5 scatters
Super version starts with 8 spins and enhanced multiplier progression
This feature is great for snowball-style gameplay—each small win nudges the ladder higher, with the potential for massive late-round payouts.
Sure Win Bonus
Begins with 5 free spins
All regular wins go into a Sure Win pot
After the spins end, the accumulated pot is awarded
Any win multiplier active multiplies the total pot
Super version begins with 8 spins and better win-building potential
This is perhaps the most consistent of the bonuses, acting as a form of “bank builder” where every win counts toward a final, boosted payout.
Bonus Buy
For impatient players or those testing strategies, the Bonus Buy menu allows you to jump directly into the action:45x the bet for regular bonus
100x the bet for super bonus
Choose between Coin Track, Multiplier Ladder, or Sure Win
Bonus buy RTP: 96.5%
It’s a fantastic option for players focused on testing the bonus features or pursuing the game’s top payout potential.
Betting Options and Payouts
Bill & Coin accommodates a wide range of players with its €0.10 to €100 bet range per spin. The maximum win of 10,000x the stake provides strong upside, and despite the base game being relatively tame, the bonus rounds pack a serious punch.
Key stats:
Reels/Rows: 6×4
Ways to Win: 4,096
Max Win: 10,000x
Volatility: High (5/5)
RTP: 96.10% (96.5% with bonus buy)
This makes Bill & Coin a good choice for players who appreciate high volatility games with a strong feature focus, while offering decent base play potential thanks to tumbles and multipliers.
Conclusion
While Bill & Coin may not immediately stand out with its visuals or theme, it proves to be a masterclass in layered slot design. What starts as a simple money-themed game rapidly evolves into a bonus bonanza, complete with three innovative bonus modes, a versatile bonus buy system, and a satisfying multiplier-driven core loop.
Each bonus offers something distinct:
Coin Track is about strategic value growth
Multiplier Ladder is perfect for volatility lovers
Sure Win suits players who value slow builds and guaranteed returns
This flexibility ensures broad appeal and lasting interest. For those who enjoyed the creative structure of Iron Bank or the chaos of Net Gains, this title feels like a natural progression. Relax Gaming has once again struck a balance between fun, function, and formidable win potential.