Infinity Reels Slots: How the Mechanic Works and the Best Games to Play
Infinity Reels slots are a family of online slot games built on a single clever idea: the grid does not stop at five reels. Every time you land a winning combination, another reel is bolted onto the right side of the screen, a re-spin fires, and a win multiplier ticks up by one. As long as the wins keep coming, the reels keep coming too, which is where the “infinity” in the name is earned. If you are new to the format and want a wider view of the market first, our guide to the best USA slots is a good starting point, but this page is a deep dive into Infinity Reels games specifically: what the mechanic is, how it pays, the real catalog of titles by studio, and where you can play in 2026.
The short version is that Infinity Reels is a proprietary engine invented and patented by the studio ReelPlay. It is not a theme and it is not a bonus round. It is a structural way of building a slot, the same way Megaways or cluster pays are structural approaches rather than single features. Below we cover the Infinity Reels mechanic in plain terms, list the best Infinity Reels slots with return-to-player and max-win data where it is confirmed, and explain the legal-versus-offshore picture for United States players.
What the Infinity Reels Mechanic Is and How It Works
Most Infinity Reels games open on a compact grid, usually three reels wide and three or four symbols tall. That starting shape matters, because the whole point is that it grows. Here is the loop that defines every Infinity Reels game:
- You spin. Wins are paid for matching symbols that start on the leftmost reel and run left to right, or in some titles for matching symbols landing anywhere, depending on the game.
- Every time a spin produces at least one win, the game adds a brand new reel to the right of the existing set and re-spins only that new reel while the winning symbols lock in place.
- Each added reel raises a running win multiplier by one. The second added reel makes wins worth two times, the third makes them three times, and so on with no set ceiling.
- The chain continues for as long as each new reel keeps the win alive. The moment a new reel lands without extending a win, the sequence ends and the total is paid at the multiplier reached.
- Many titles reward long chains directly. Reach a set number of added reels, often around 12, and the game pays a fixed reel-count bonus or jackpot on top of the symbol wins.
A couple of design quirks come with the format. Because a payout only needs the leftmost reels to line up, wins tend to arrive often enough to keep chains starting, even if most end quickly. Bonus rounds also tend to trigger on fewer scatter symbols than the usual three, since the expanding grid gives the game other ways to build tension. And when a chain finally breaks, the whole board resets to its compact starting size for the next spin.
Because the multiplier and the grid grow together, a modest starting win can snowball. A single line of low-value symbols is worth very little on its own, but stretch that chain across eight or ten reels and the same symbols pay at eight or ten times, then more. That compounding is the entire appeal of Infinity Reels games, and it is also why the format leans toward the volatile end of the scale. For a broader primer on how payout math is measured, see our explainers on RTP, volatility and the RNG that drives every spin.
Where Infinity Reels Came From
The mechanic was created by ReelPlay, a Sydney-based studio founded in 2014 as Chance Interactive that rebranded under the ReelPlay name in 2020. The first game ever released on the engine was El Dorado Infinity Reels, which launched in 2020 and set the template every later title follows. You can read more about the studio and its full output on our ReelPlay provider page.
ReelPlay treated Infinity Reels the way Big Time Gaming treated Megaways: as a licensable brand rather than a one-studio secret. Relax Gaming became the first outside licensee, which in turn let Relax partner studios such as Bad Dingo and Hot Rise Games build their own Infinity Reels titles. Much of ReelPlay’s own content also reaches players through Yggdrasil’s distribution platform, which is why you will sometimes see Yggdrasil branding attached to games like Money Mariachi Infinity Reels. There was also an early naming skirmish: NetEnt shipped a strikingly similar engine called InfiniReels, and the two companies reached an agreement over the near-identical mechanics not long after launch. NetEnt has since put out its own InfiniReels-branded titles, so the add-a-reel idea now spans two separate camps.
Max-Win Potential and the Volatility Profile
Infinity Reels games are, as a group, high-variance slots. The distribution of outcomes is lopsided: a lot of spins end after one or two added reels for small returns, and the memorable money comes from the rare runs that stretch the grid deep and stack the multiplier. That shape puts most of the catalog in the same territory as our high volatility slots list, though a handful of gentler titles exist.
Top-end win potential varies widely by title, which is worth understanding before you pick a game. Some Infinity Reels slots cap out around 1,000 to 2,500 times your stake, while the most aggressive designs reach into five figures. Money Mariachi Infinity Reels is the headline example with a documented ceiling of 50,000 times the bet. Emerald’s Infinity Reels, West Coast Cash Infinity Reels and Odin Infinity Reels Megaways all sit in the 20,000-times-plus range. A bigger max win almost always signals higher volatility and longer dry spells, so match the ceiling to your bankroll and patience.
High variance. The eye-catching top prizes almost never land. Treat a 50,000x ceiling as a signal of volatility, not a target, and size your bets so your bankroll can absorb long dry spells.
Infinity Reels Versus Megaways and Other Ways-to-Win Engines
Players often lump Infinity Reels in with Megaways because both promise a shifting grid and lots of ways to win, but the two work very differently. Megaways, the Big Time Gaming engine, varies the number of symbols on each of six fixed reels every spin, producing up to 117,649 ways to win in a single moment before a cascade. Infinity Reels instead keeps a small fixed reel height and adds whole reels over a chain of re-spins, with a multiplier that climbs as it goes. One reshuffles a fixed frame; the other extends the frame.
Cluster pays, seen across many Hacksaw Gaming and Pragmatic Play titles, is different again: wins come from groups of touching symbols on a larger grid rather than from lines or added reels. If you want to compare formats side by side, browse our dedicated pages on Megaways slots, cluster pays slots and jackpot slots. The table below sums up the core differences.
| Engine | Core idea | Grid behavior | Multiplier | Owner |
|---|---|---|---|---|
| Infinity Reels | Add a reel for every win, re-spin, repeat | Grows horizontally with no fixed limit | Rises by one per added reel | ReelPlay |
| Megaways | Random symbol count per reel each spin | Six fixed reels, variable height, plus cascades | Usually via cascades or free spins | Big Time Gaming |
| Cluster pays | Groups of touching symbols pay | Fixed larger grid, tumbling wins | Often per tumble or collection | Various studios |
| InfiniReels | Near-identical add-a-reel concept | Grows horizontally | Rises with added reels | NetEnt |
You may also see the word Spinfinity, used by Yggdrasil on titles such as Viking Fury Spinfinity. It is a cousin of the same add-a-reel idea rather than an official Infinity Reels-branded release, so treat it as a close relative when you shop around.
Notable Infinity Reels Titles by Studio
This is a narrower niche than Megaways, so be wary of any site claiming hundreds of Infinity Reels games. The genuine catalog runs to a few dozen strong titles, most of them from ReelPlay itself and the rest from the Relax Gaming licensing network. The tables below list titles we can verify, with RTP, volatility and max win where those figures are published. Where a game offers configurable RTP levels, the highest published figure is shown.
ReelPlay in-house titles
| Title | RTP (percent) | Volatility | Max win (x bet) |
|---|---|---|---|
| El Dorado Infinity Reels | Up to 96.54 | High | 6,250 |
| Giza Infinity Reels | 96.57 | Medium to high | 10,000 |
| Money Mariachi Infinity Reels | 96.19 | High | 50,000 |
| Odin Infinity Reels Megaways | 96.18 | High | 20,000 |
| West Coast Cash Infinity Reels | 96.16 | High | 20,350 |
| Thor Infinity Reels | 96.20 | High | 6,055 |
| Gems Infinity Reels | 96.26 | Medium to low | 2,267 |
| Hypernova Infinity Reels | 96.20 | High | 2,000 |
| Zodiac Infinity Reels | 95.57 | Medium to high | 3,956 |
| Tiki Infinity Reels Megaways | 96.07 | High | Not confirmed |
| Martian Miner Infinity Reels | 96.06 | Medium to high | 5,536 |
Relax Gaming licensing network
| Title | Studio | RTP (percent) | Volatility | Max win (x bet) |
|---|---|---|---|---|
| Emerald’s Infinity Reels | Relax Gaming | 96.60 | High | 24,056 |
| Super Massive Infinity Reels | Hot Rise Games | 95.86 | High | 1,042 |
| Golden Haul Infinity Reels | Bad Dingo | 95.10 | Medium | 1,541 |
Two names you will find recommended on some lists do not belong here. Immortal Fruits is a NoLimit City slot built on a fixed five-reel grid, not an Infinity Reels game, and we could find no legitimate release called Wildcraft Infinity Reels. We have left both out rather than pad the catalog with titles that do not use the mechanic.
Top 10 Infinity Reels Slots Reviewed
These are the standout titles worth your time, chosen for a mix of win potential, polish and staying power in casino lobbies. Each capsule review is short by design; open the demo before you commit real money.
1. Money Mariachi Infinity Reels (ReelPlay)
Set on the Day of the Dead with skeleton mariachi players, this is the ceiling-setter of the format at 50,000 times your bet. A LevelUp Respins feature and symbol multipliers do the heavy lifting once the reels start marching. The base return is 96.19 percent, rising toward 97 percent if you buy the bonus. It is brutally volatile, so treat the top prize as a lottery rather than an expectation.
2. Emerald’s Infinity Reels (Relax Gaming)
The first big licensee title and still one of the best, Emerald’s pairs a clean Irish theme with a strong 96.60 percent RTP. Its published max win of 24,056 times the stake is among the highest in the catalog. Wild reels and a bonus round keep the chains extending, and the visuals hold up years after release.
3. Giza Infinity Reels (ReelPlay)
An early ReelPlay follow-up to El Dorado, Giza swaps South American gold for Egyptian tombs and lifts the top prize to 10,000 times the bet. The 96.57 percent return is one of the better figures ReelPlay has published. It is a good middle-ground pick: punchy without the extreme dry spells of the 50,000-times titles.
4. El Dorado Infinity Reels (ReelPlay)
The game that started it all in 2020, and the cleanest way to learn the mechanic. Configurable RTP levels top out at 96.54 percent, with a 6,250-times max win driven by a jackpot for stringing 12 reels together. Nothing about it is flashy by modern standards, but it remains a tidy, readable introduction to Infinity Reels games.
5. Odin Infinity Reels Megaways (ReelPlay)
A rare hybrid that welds Infinity Reels to a Megaways-style ways engine for a busier, louder experience. The Norse theme comes with a 96.18 percent RTP and a 20,000-times ceiling. If you like the idea of two big mechanics fighting for space on one screen, this is the one to try.
6. West Coast Cash Infinity Reels (ReelPlay)
A laid-back California theme hides one of the meaner math models in the range, with a 20,350-times top win and firmly high volatility. The 96.16 percent RTP is standard, but the appeal here is the deep-chain potential. Bring patience and a bankroll that can absorb long gaps between hits.
7. Thor Infinity Reels (ReelPlay)
Comic-book Norse mythology with a 96.20 percent return and a 6,055-times max win. Thor leans on wilds and multiplier symbols to keep reels expanding, and the pacing is a touch friendlier than the studio’s biggest earners. A solid everyday pick rather than a jackpot chase.
8. Zodiac Infinity Reels (ReelPlay)
Built around a prize wheel, free spins and multiple fixed jackpots, Zodiac starts on a small three-by-three frame and pays for matches anywhere. Its 95.57 percent RTP sits below the ReelPlay average and the 3,956-times ceiling is modest, but the medium-to-high variance makes it one of the more approachable titles in the family. It is also widely stocked at United States regulated casinos.
9. Martian Miner Infinity Reels (ReelPlay)
A cartoonish space-mining theme with a 96.06 percent return and a 5,536-times max win. Symbol multipliers and a bonus buy give you levers to pull, and the medium-to-high volatility keeps sessions from feeling relentless. Light in tone, sensible in math.
10. Golden Haul Infinity Reels (Bad Dingo)
Proof the format can be gentler, Golden Haul runs medium volatility with a capped 1,541-times max win, so wins land more often but stay smaller. The 95.10 percent RTP is on the low side, so read that trade-off clearly. It is a reasonable entry point for anyone who finds the big-ceiling titles too punishing.
Ready to spin these titles? See which regulated operators carry Infinity Reels games in your state. Legal Sites
Records, Biggest Wins and RTP Context
The largest confirmed max win in the format belongs to Money Mariachi Infinity Reels at 50,000 times the stake, which at a maximum spin can translate into a payout in the millions on paper. Behind it sit Emerald’s Infinity Reels at 24,056 times, West Coast Cash Infinity Reels at 20,350 times and Odin Infinity Reels Megaways at 20,000 times. Those are theoretical ceilings that almost no player will ever touch, and they are useful mainly as a signal of how volatile each game is rather than as a target.
On return-to-player, most Infinity Reels slots land between roughly 95 and 96.6 percent, which is around or slightly below the industry norm. Emerald’s Infinity Reels tops the range at 96.60 percent, while Golden Haul Infinity Reels sits at the bottom near 95.10 percent. Watch for configurable RTP: several ReelPlay titles ship in multiple versions, and the operator you play at chooses which one to load, so the same game can pay differently from one casino to the next. Always check the in-game information panel for the exact figure before you spin.
One more win path is worth flagging: the format has been paired with progressive jackpot networks. Certain releases, such as a Dream Drop version of Hypernova Infinity Reels tied to Relax Gaming’s shared jackpot system, layer a network-wide prize pool on top of the expanding-reel math. That gives you a shot at a fixed jackpot alongside the chain multipliers, though it usually comes with a slightly lower base return. If that combination appeals to you, our jackpot slots guide covers how pooled prizes work.
Always check the paytable. Configurable RTP means the same title can pay differently from one casino to the next. The in-game information panel discloses the exact figure loaded at your operator.
Legal United States Sites Versus Offshore
Where you can play Infinity Reels games depends on where you live and which casino you use. The picture splits into two lanes.
At state-regulated online casinos in markets such as New Jersey, Michigan, Pennsylvania, West Virginia and Connecticut, a selection of Infinity Reels titles is available legally. ReelPlay content reaches these regulated operators through distribution partners, and titles like Zodiac Infinity Reels have appeared in the lobbies of major licensed brands including BetMGM and FanDuel. The trade-off is that the legal catalog is curated and smaller: you will find some Infinity Reels games, not all of them. Our legal sites hub tracks which regulated casinos carry this style of slot.
Offshore casinos that accept United States players tend to stock a wider slice of the ReelPlay and Relax Gaming catalog, including titles that never cleared a state regulator. The upside is selection; the downside is that these sites operate outside United States consumer protections, so payout disputes and account issues carry more risk. We cover the trade-offs on our offshore sites page. Whichever lane you choose, favor licensed operators and read the terms before depositing. For the games most likely to be stocked in either lane, see our most popular and new slots roundups, and our real money slots guide for banking basics.
Regulated play. Curated catalog, protected funds. Legal Sites
Wider selection. Broader catalog, more risk. Offshore Sites
Banking basics. Deposits and payouts. Real Money
Hot titles. The most-stocked games. Most Popular
Mobile Play and Free Demos
The format travels well to a phone. Each new reel sliding in from the right stays easy to follow in a narrow portrait window, the re-spins fire quickly, and the games load straight from the browser with nothing to install. Every major title in the tables above has been tested on current iPhone and Android handsets, and our mobile slots section digs into the best options for smaller screens.
Before you wager, play the demo. Almost every Infinity Reels slot offers a free-play version that uses virtual credits, which is the smartest way to feel out a game’s volatility and see how deep the chains typically run before you risk money. Our free slots hub links to demo versions where they are available. A few sessions in demo mode will tell you more about whether a title fits your bankroll than any RTP figure on paper.
Frequently Asked Questions
What are Infinity Reels slots?
They are online slots built on ReelPlay’s Infinity Reels engine, where every winning spin adds a new reel to the right of the grid, triggers a re-spin and raises a win multiplier. The reels keep adding for as long as the wins keep coming, so the grid and the multiplier grow together.
Who invented the Infinity Reels mechanic?
ReelPlay, a studio formerly known as Chance Interactive, invented and patented the mechanic and launched the first title, El Dorado Infinity Reels, in 2020. ReelPlay licenses the engine to other studios through the Relax Gaming network.
How does the multiplier work?
Each reel added during a winning chain increases the multiplier by one. The second added reel doubles wins, the third triples them, and so on. Because there is no fixed cap, a long chain can push the multiplier well into double digits.
How big can the reels grow?
In theory there is no hard limit, since the chain only ends when a newly added reel fails to extend a win. In practice, long runs are rare, and many games pay a bonus or jackpot once you reach a milestone such as 12 added reels.
Are Infinity Reels slots high volatility?
Most are. The format concentrates its value in rare deep chains, so expect frequent small results punctuated by occasional large ones. A minority of titles, such as Golden Haul Infinity Reels, run at medium volatility with a lower max win.
Which Infinity Reels slot has the biggest max win?
Money Mariachi Infinity Reels leads the confirmed catalog with a top prize of 50,000 times the bet. Emerald’s Infinity Reels, West Coast Cash Infinity Reels and Odin Infinity Reels Megaways all reach 20,000 times or more.
How is Infinity Reels different from Megaways?
Megaways varies the number of symbols on six fixed reels each spin to create thousands of ways to win. Infinity Reels keeps a small fixed reel height and adds whole reels over a chain of re-spins while raising a multiplier. They are separate engines owned by different studios.
Can I play Infinity Reels slots for free?
Yes. Almost every title offers a demo mode with virtual credits, which lets you learn the mechanic and gauge volatility before wagering real money. Look for demo links in our free slots section.
Can United States players play Infinity Reels slots legally?
In states with regulated online casinos, such as New Jersey, Michigan and Pennsylvania, a curated selection of Infinity Reels titles is available at licensed operators. Players in other states often reach a wider catalog only through offshore casinos, which carry more risk.
Do Infinity Reels slots work on mobile?
Yes. They play directly in a smartphone browser with nothing to download, and the expanding grid stays readable in portrait mode on both iPhone and Android devices.
How many Infinity Reels games are there?
This is a niche format, not a huge one. The genuine catalog runs to a few dozen strong titles from ReelPlay and its Relax Gaming licensees, so be skeptical of any list claiming hundreds of Infinity Reels games.
What is the difference between Infinity Reels and InfiniReels?
They are near-identical add-a-reel mechanics from different studios. Infinity Reels is ReelPlay’s patented brand, while InfiniReels was NetEnt’s version. The two companies reached an agreement over the similarity soon after both launched.
Play Responsibly
Treat these games as a paid pastime rather than a plan to get ahead. The steep-variance design means the long, winless stretches you will hit are completely ordinary, and the eye-catching top prizes almost never land, so stake only money whose loss would not sting and decide in advance how much cash and how many minutes a session gets. When the play starts to weigh on you or feels hard to walk away from, confidential support is one phone call away at any hour on 1-800-GAMBLER. Access is restricted to players who have reached the minimum betting age where they live.
Need help? Call or text the National Problem Gambling Helpline at 1-800-GAMBLER — free, confidential, 24/7. You can also reach a counselor at 1-800-522-4700.
Last reviewed: August 2026. Game data including RTP, volatility and maximum win is published by the studios and can vary by operator and game version; always confirm the figures in each game’s information panel before you play.
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