Infinity Reels slots start with a small set of reels and add a new reel to the right every time a win lands, followed by a respin. The run continues for as long as each new reel extends a win, so the grid, the ways count and often a multiplier can keep growing within a single paid spin.
Infinity Reels games typically start on three reels and add one reel, plus a respin, after each qualifying win.
The feature stops when the newest reel fails to extend a win.
Ways grow fast: with four rows, three reels give 64 ways and eight reels give 65,536.
Reel multipliers are common and usually apply to the total when the run ends.
‘Infinite’ refers to the reel count; every game still has a published max win cap.
What it is
A new reel is added after each win, then a respin
Created by
ReelPlay
Typical start
3 reels × 4 rows (64 ways)
Ends when
The newest reel adds no win
Common extra
Multipliers attached to new reels
Fruit machine cousin
None
What Infinity Reels slots are
Infinity Reels is a reel mechanic created by the studio ReelPlay. Instead of a fixed five or six reels, the game begins with a short row of reels, usually three, each four symbols high. Any win adds a fresh reel to the right-hand end and triggers a free respin. If the new reel helps extend a win, another reel is added and the process repeats.
Trade coverage of ReelPlay’s El Dorado Infinity Reels in 2019 described each spin as able to add a reel, a respin and a multiplier. Since then, ReelPlay has worked with other studios, and partner releases usually carry ‘Infinity Reels’ in the title. None of these games is in our fact-checked slot database yet, so we do not quote RTP or max win figures for them here; check each game’s help screen.
Infinity Reels sits alongside other reel-changing slot machine features, such as expanding reels and cascading reels, but it is the only one where the number of reels has no fixed upper limit in the design.
How the Infinity Reels mechanic works, step by step
You stake and spin; the RNG settles the first three reels.
The game counts ways wins from the left across the reels in play.
If there is a win, it is banked and a new reel slides in on the right.
The game respins at no extra stake, usually keeping the reels already in play.
If the new reel extends a win, the cycle repeats with another reel; if not, the run ends.
Any multipliers collected on the added reels are applied to the run’s total, then the reels reset to three.
The exact rules vary. Some games respin all reels, others hold the earlier result; some add a multiplier on every new reel, others only from a certain reel onwards. The help screen sets out each game’s version, and UK rules require it to be clear before you play.
How ways to win grow on Infinity Reels
Infinity Reels games pay on ways rather than fixed lines. With four rows on every reel, the number of ways is 4 raised to the number of reels.
Ways to win by reel count (4 rows per reel)
Reels in play
Calculation
Ways to win
3
4 × 4 × 4
64
4
4⁴
256
5
4⁵
1,024
6
4⁶
4,096
7
4⁷
16,384
8
4⁸
65,536
10
4¹⁰
1,048,576
Those totals look dramatic, but ways only pay when symbols match on consecutive reels from the left. A run to ten reels needs a winning symbol to keep appearing on every new reel, which becomes less likely with each step.
Worked example: an Infinity Reels run in pounds
Here is an illustrative run at a £1 stake. The paytable values and multipliers are invented for the example; real games set their own.
Illustrative Infinity Reels run at £1 stake
Step
Reels
What happens
Win banked
Multiplier
Spin
3
Three crowns from the left on 2 ways
40p
1×
Respin 1
4
New reel shows a crown: four crowns on 2 ways
£1.00
1×
Respin 2
5
New reel shows a crown and a multiplier
£2.00
2×
Respin 3
6
New reel shows no matching symbol
Nothing
2×
End
Back to 3
Run total £3.40 × 2
£6.80
Applied
Without the reel growth, the first spin would have paid 40p and stopped. The value comes from chains, and chains are rare, so most spins either lose or pay a small amount before the next reel fails to connect.
Infinity Reels compared with Megaways and expanding reels
Reel mechanics that change the grid
Mechanic
What changes
Limit
Example in our database
Infinity Reels
Number of reels grows after each win
No fixed reel limit; capped by max win
None yet
Megaways
Rows per reel change every spin
Up to 117,649 ways on 6 reels in many games
Bonanza Megaways
Expanding reels
Rows grow during a feature
Set maximum height
Folsom Prison (4-6-6-6-4)
Cascading reels
Winning symbols are replaced
Grid size fixed
Gonzo’s Quest
Megaways slots such as Bonanza Megaways vary height, not width. Folsom Prison grows its rows as cells open during features. Gonzo’s Quest keeps the grid size but replaces winning symbols. Infinity Reels is the one that adds whole reels.
Infinity Reels maths: RTP, volatility and the max win cap
Long runs with growing multipliers are expensive features, so Infinity Reels games pay little on most spins to fund them. Expect a high volatility profile: frequent small or empty spins, occasional long chains. The RTP is still fixed in advance and includes the value of every possible run.
‘Infinity’ also has a practical limit. Every game publishes a max win cap, and a run that reaches it ends there. The help screen lists the cap; at UK stakes, a 10,000× cap would be £50,000 at £5 a spin or £20,000 at the £2 limit for 18–24s.
Average cost of 100 spins on an illustrative 96% RTP slot
Stake per spin
Staked
Average cost (4%)
Illustrative 10,000× cap
10p
£10
40p
£1,000
50p
£50
£2
£5,000
£2 (18–24 limit)
£200
£8
£20,000
£5 (25+ limit)
£500
£20
£50,000
The 96% RTP and 10,000× cap in this table are round illustrative figures, not the specification of any particular Infinity Reels game. Use the numbers in the game’s own help screen.
Infinity Reels myths and facts
Myth: a long run means the slot is paying out today. Fact: each spin and respin is settled independently; there is no ‘hot’ phase.
Myth: infinite reels mean no limit on winnings. Fact: every game has a published max win cap.
Myth: the next reel is more likely to connect after several have. Fact: each new reel is a fresh random result; the chance does not build up.
Myth: a run that stopped at the eighth reel was close to a big win. Fact: near misses carry no information about future spins.
Is there a fruit machine version of Infinity Reels?
No. UK pub fruit machines use a fixed set of physical or simulated reels, usually three, with nudges and holds as their features. Their stakes and prizes are also fixed by category: a Category C machine has a £1 maximum stake and a £100 top prize, and is for adults aged 18 and over only. Online-style mechanics can appear on video machines in casinos and betting shops, but stakes and prizes there are still capped by the machine category.
How to check an Infinity Reels slot before you play
Open the help screen and confirm the starting number of reels and rows.
Find the rule that ends a run: does the newest reel need to be part of a win?
Check how multipliers are added and when they apply.
Note the RTP shown; casinos can run different versions of the same game.
Note the max win cap, and set a deposit limit before staking.
Infinity Reels games supplied to Great Britain run without autoplay, turbo or slam-stop, with at least 2.5 seconds per spin, under the rules in force since 31 October 2021. Stakes are limited to £5 per spin for players aged 25 and over and £2 for 18–24s, per the Commission’s online slots stake limit guidance (opens in a new tab). There is no option to pay your way into a run: UK versions are supplied without bonus buy. See our page on online slot stake limits for who each limit applies to.
Where to play Infinity Reels slots in the UK
None of our partner offers is linked to an Infinity Reels game, and we cannot confirm which partners carry them, so search each casino’s lobby; game availability changes. For new customers aged 18+: Coral gives 100 free spins at 10p on selected games after you deposit and bet £10 on slots; Ladbrokes gives up to 500 free spins at 10p, 50 a day for 10 days, after you play £10 on slots; PlayOJO gives 80 free spins at 10p on Big Bass Bonanza with a first deposit of £10 or more, with no wagering. Terms apply.
Compare our partners on the casinos page. Treat every spin as paid entertainment, and if it stops feeling that way, GamCare (opens in a new tab) offers free support on 0808 8020 133.
Coral and Ladbrokes are both run by LC International Limited (Entain). If you already hold an account with one Entain brand, you may not be able to open a new account with another; check the terms before signing up.
Significant terms: 18+. New players only. Offer runs 01/10/2026 to 01/02/2027. Deposit (certain types excluded) and bet £10+ on slot games to get 100 free spins (selected games, £0.10 each, 48 hrs to accept, valid 7 days). No wagering on free spin winnings. Deposits by Neteller, PayPal, Paysafe, Skrill, prepaid cards and certain debit cards do not qualify. Restrictions and T&Cs apply. GamCare.org.uk
Read the Coral reviewLicence: LC International Limited, UKGC account 54743. Offer checked 5 October 2026.
Significant terms: 18+. New customers only, from 14/11/25 until further notice. Certain deposit methods excluded. Deposit and spend £10+ on slots for 50 free spins a day during the first 10 days after first deposit and registration (max 500, £0.10 each, selected games, claim before 23:59 each day, valid 7 days). No wagering. Prepaid cards, PayPal, Paysafe, Neteller, Skrill and Moneybookers deposits do not qualify. Restrictions and T&Cs apply. GamCare.org.uk
Read the Ladbrokes reviewLicence: LC International Limited, UKGC account 54743. Offer checked 5 October 2026.
Significant terms: 18+. New UK customers (excluding Northern Ireland). First deposit only. Minimum deposit £10. 80 free spins on Big Bass Bonanza, £0.10 each. No wagering requirements; winnings paid in cash. Cannot be used with any other offer. Only available to players who arrive through the designated offer link. Full T&Cs apply. GamCare.org.uk
Read the PlayOJO reviewLicence: Skill On Net Limited, UKGC account 39326. Offer checked 5 October 2026.
18+. Gambling should be entertainment that costs money, not a way to make it. Decide a budget before you play: plan a slot budget. Free, confidential help: National Gambling Helpline 0808 8020 133.
Frequently asked questions
What are Infinity Reels in slots?
Infinity Reels is a mechanic, created by ReelPlay, in which every win adds a new reel to the right and triggers a respin. Games usually start with three reels of four rows, giving 64 ways. As long as each new reel extends a win, another is added, and multipliers often build along the way. The run ends when a new reel adds nothing. Compare it with expanding reels, which grow height rather than width.
Who invented Infinity Reels?
ReelPlay created the Infinity Reels mechanic, and trade coverage from 2019 describes El Dorado Infinity Reels as one of its early games. ReelPlay has since worked with other studios, whose releases usually include ‘Infinity Reels’ in the title. We have not yet added any of these games to our fact-checked database, so check each game’s help screen for its RTP and max win. Our page on who makes online slots explains how studios share and supply mechanics.
How many reels can an Infinity Reels slot have?
There is no fixed reel limit in the design, but every game has a max win cap, and long runs are rare because each new reel must connect to a win. With four rows per reel, eight reels give 65,536 ways and ten reels give over a million, though very few runs get that far. The cap ends a run if it is reached. Our page on max win caps explains how caps work.
When does an Infinity Reels run stop?
In most games the run stops when the newest reel does not extend a winning combination. The respin happens, the game checks the result, and if nothing on the new reel connects, the run ends, any multipliers are applied and the reels reset to the starting size. Some games have slightly different rules, so the help screen is the place to check. For what a game cycle is under UK rules, see our game cycle explainer.
Do Infinity Reels slots have a high RTP?
Not necessarily; RTP is set by the developer for each game and often comes in several versions. The mechanic itself does not change the long-run return, which already includes every possible run. What it changes is how wins arrive: mostly small or nothing, occasionally a long chain. Always read the RTP shown in the game. Our guide to RTP variants explains why one game can pay differently at different casinos.
Are Infinity Reels the same as Megaways?
No. Megaways changes how many rows each of six reels shows on every spin, while Infinity Reels adds whole new reels after each win. Megaways games commonly top out at 117,649 ways on six reels; Infinity Reels has no fixed reel limit but needs consecutive wins to grow. Both pay on ways from the left. See our page on Megaways slot machines for how variable reels work.
Is a long Infinity Reels run a sign the slot will pay again?
No. Every spin and respin is settled independently by the RNG, so a long run tells you nothing about the next spin. Slots have no memory, no hot streaks and no due wins. Treating a recent run as a sign is a form of the gambler’s fallacy. Our page on whether slot machines remember past spins explains why each result stands alone.
Can I try Infinity Reels slots for free?
Many UK casinos offer free demo play, after age verification, which has been required for free-to-play games since May 2019. A demo uses the same rules as the real game, so it shows how runs build and end without staking money, although demo results do not carry over to real play. The demo slots guide explains what to check when you try a game this way.
How much does an Infinity Reels slot cost to play?
On average, the cost is your total stake multiplied by the house edge. At an illustrative 96% RTP, 100 spins at 10p is £10 staked with an average cost of 40p, and 100 spins at £2 is £200 staked with an average cost of £8. Because these games are usually high volatility, real sessions vary widely around those figures. Our slot cost calculator guide shows how to work it out for any game.
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