
Mahjong Phoenix
NextSpin is a Stockholm studio with nine European patents for its slot mechanics since 2018. I've spent weeks playing through its library on real accounts, tracking which Nextspin slots deliver genuine wins. Those hands-on sessions, not a spec sheet, are what this ranking is built on, starting with a quick look at the studio itself. You will be surprised at what I found out.






Before ranking any NextSpin games, it helps to know who built them.
|
Founded |
2018 |
|
Headquarters |
Stockholm, Sweden |
|
Ownership |
Independently owned and founded by Gustav Pettersson (CEO), Ludwig Bäck (Chief Commercial Officer) and Mikael Blomdahl (COO) |
|
Regulatory Position |
Operates under Malta Gaming Authority (MGA) regulations |
|
Game Portfolio |
Nearly 70 titles |
|
Game Categories |
Video slots (the large majority), arcade games, one fishing title, one instant-win "Fast Games" title |
|
Key Mechanics |
MegaWins (patented), Pay Anywhere, Cascading Reels, Progressive Jackpot Layer and Feature Buy |
|
Most Famous Titles |
Roma II, Big CaiShen MegaWins, 7 Dragons |
Headquarters
2018
Stockholm, Sweden
Ownership
2018
Independently owned and founded by Gustav Pettersson (CEO), Ludwig Bäck (Chief Commercial Officer) and Mikael Blomdahl (COO)
Regulatory Position
2018
Operates under Malta Gaming Authority (MGA) regulations
Game Portfolio
2018
Nearly 70 titles
Game Categories
2018
Video slots (the large majority), arcade games, one fishing title, one instant-win "Fast Games" title
Key Mechanics
2018
MegaWins (patented), Pay Anywhere, Cascading Reels, Progressive Jackpot Layer and Feature Buy
Most Famous Titles
2018
Roma II, Big CaiShen MegaWins, 7 Dragons
Here's what surprised me about NextSpin. The RTP band is unusually tight. Every game below sits between 96.72% and 97.06%.
I only tested these ten, so I can't say whether that holds across the full catalogue. I ranked them on RTP, max win over a full session, how well the mechanic executes, and whether the theme earns its place. A handful are new for 2026.
Below are the games that I tested and ranked:
|
Game |
RTP |
Volatility |
Rating |
Max Win |
Best For |
|
|
97.05% |
Medium |
4.7/5 |
Not published by NextSpin |
Fans of the flagship series and its huge win-way count |
|
Princess of Ra |
97.06% |
High |
4.6/5 |
5,000x stake |
Quick sessions in a tight, familiar Book-style format |
|
Big CaiShen MegaWins |
97.04% |
Medium |
4.6/5 |
Not published by NextSpin |
A first proper look at the MegaWins mechanic itself |
|
Fortune Familiar |
97.03% |
Medium |
4.5/5 |
Not published by NextSpin |
Progressive multiplier up to 15x |
|
|
96.72% |
Medium |
4.5/5 |
20,000x stake |
The single biggest max win on this list |
|
Win Win Neko |
97.03% |
High |
4.4/5 |
Not published by NextSpin |
High-volatility players who want a fast, punchy session |
|
|
96.99% |
Medium |
4.4/5 |
Win up to 32,400 ways |
Bonus-buy players chasing a mid-round multiplier spike |
|
Golden West |
96.99% |
Medium |
4.3/5 |
Up to 10,000x in the free spins round |
A Wild West theme with a reliable mystery-symbol feature |
|
Forest Secret |
97.00% |
Medium |
4.2/5 |
1,000x |
Bonus spins |
|
Zeus Mighty Wealth |
96.97% |
Medium |
4.0/5 |
80x progressive multiplier |
Steadier, lower-swing sessions on a MegaWins frame |
Roma II
RTP
97.05%
Volatility
Medium
Rating
4.7/5
Max Win
Not published by NextSpin
Best For
Fans of the flagship series and its huge win-way count
Princess of Ra
RTP
97.06%
Volatility
High
Rating
4.6/5
Max Win
5,000x stake
Best For
Quick sessions in a tight, familiar Book-style format
Big CaiShen MegaWins
RTP
97.04%
Volatility
Medium
Rating
4.6/5
Max Win
Not published by NextSpin
Best For
A first proper look at the MegaWins mechanic itself
Fortune Familiar
RTP
97.03%
Volatility
Medium
Rating
4.5/5
Max Win
Not published by NextSpin
Best For
Progressive multiplier up to 15x
7 Dragons
RTP
96.72%
Volatility
Medium
Rating
4.5/5
Max Win
20,000x stake
Best For
The single biggest max win on this list
Win Win Neko
RTP
97.03%
Volatility
High
Rating
4.4/5
Max Win
Not published by NextSpin
Best For
High-volatility players who want a fast, punchy session
Legend of Guan Gong
RTP
96.99%
Volatility
Medium
Rating
4.4/5
Max Win
Win up to 32,400 ways
Best For
Bonus-buy players chasing a mid-round multiplier spike
Golden West
RTP
96.99%
Volatility
Medium
Rating
4.3/5
Max Win
Up to 10,000x in the free spins round
Best For
A Wild West theme with a reliable mystery-symbol feature
Forest Secret
RTP
97.00%
Volatility
Medium
Rating
4.2/5
Max Win
1,000x
Best For
Bonus spins
Zeus Mighty Wealth
RTP
96.97%
Volatility
Medium
Rating
4.0/5
Max Win
80x progressive multiplier
Best For
Steadier, lower-swing sessions on a MegaWins frame
Heather GartlandI sat there for a good ten seconds on my first bonus round, genuinely torn over which free spins option to pick. That's not a complaint. Most studios never give me a decision that real at the trigger
This is the game that made me take NextSpin seriously. RTP sits at 97.05%, and medium volatility. Land the right Mighty Warrior combination and you're dropped into a pick round before the free spins even start, stacking your multiplier before a single reel drops.
My honest complaint: NextSpin doesn't publish a max win figure for it, a real gap for a 32,400-way engine.

This compact 5x3 grid on 9 betways is an unusual choice for a studio built around tens of thousands of ways to win. RTP is 97.06%, the best of any NextSpin title I tested, but volatility is high despite the compact format, confirmed 5,000x max win.
What I liked was the pace: no cascading animation between spins, and Book-style free spins with stacking extra rounds felt generous. However, if you came here for MegaWins, this one won't scratch that itch.

This is where I'd send anyone asking what MegaWins really does. RTP lands at 97.04%, and medium volatility, bet range of $0.50 to $500, with the reel count shifting from six symbols to seven between spins.
My most exciting moment was when I got four consecutive cascades which gave me a decent payout. No published max win figure here either, and the seven-symbol reel state didn't come around as often as I'd have liked.

This slot was released in December 2025, RTP is 97.03%, medium volatility a bet range of $0.40 to $40,and with a progressive jackpot. I felt this was one of the best of NextSpin's Chinese-dragon titles, with loads of scrolls and gold Yuan Bao on the screen.
Chain-reaction cascades built real momentum, and hitting three or four in a row before the multiplier reset was loads of fun. The one thing to flag: it's new enough that NextSpin hasn't published a max win figure for it, so there's no ceiling yet to weigh against the progressive jackpot's slower build.

A published 20,000x stake ceiling is unusually rare for a NextSpin title, and the Chinese dragon theme earns its place. RTP is 96.72%, the lowest of my top ten, an unusual trade-off for a max win this large.
The best feature of this slot is the free spins trigger choice. Namely more spins with smaller multipliers, or fewer with a bigger multiplier from the start. I took the bigger multiplier on my second run and it paid off. My first attempt with more spins barely broke even.

Win Win Neko has an RTP of 97.03%, and runs on a 6x5 grid with the full 32,400-way MegaWins structure. High volatility meant I had quite a few long dry stretches punctuated by a couple of big cascading chains, exactly what I want from a high-variance slot rather than a slow bleed.
No disclosed max win multiplier here, so I'd stick to smaller stakes until NextSpin publishes one.

Released November 2024, RTP is 96.99%, medium volatility, 32,400 ways and a betting range of $0.20 to $4,000., Legend of Guan Going is a colorful 6x5 slot built around the Chinese general Guan Gong rather than a generic warrior skin. See the full Legend of Guan Gong review for more comprehensive information.
The best feature is the Ultra Mega Win Mode, activating once a spin's multiplier crosses a threshold and escalating every payout to the tune of up to 32,400. I bought into the bonus round twice, and both times the base free spins felt ordinary until that mode kicked in and the pace changed completely. My one gripe: Ultra Mega Win Mode only changes the pace once its multiplier threshold is crossed, so a slower session can mean several spins before that shift happens.

RTP is 96.99%, medium volatility. The mystery symbol is the mechanic I noticed most, converting into any paying symbol mid-cascade and occasionally turning a dead reel into a clean win.
Where it shows its age a little is the visuals, flatter than NextSpin's 2026 releases, even if the mechanic itself still holds up. I tested it between a spin. It's a steadier MegaWins pick for players who don't want 7 Dragons' bigger swings.

Released in 2021, RTP sits at exactly 97.00%, medium volatility, bet range $0.80 to $80. What impressed me is how little the core loop has aged next to titles released three years later.
The cascading structure and multiplier build feel almost identical to Fortune Familiar's newer take. Where it shows its age is the visuals, flatter than anything NextSpin puts out now, but it's proof MegaWins was a solid foundation from day one.

RTP is 96.97%, medium volatility, bet range $0.10 to $100. The 80x figure on the game page is a multiplier tied to the expanding wild feature, not a win ceiling. That expanding symbol and multiplier wild combination kept wins landing more often than any other title here, at a smaller scale each time.
If a 20,000x ceiling on 7 Dragons sounds more stressful than fun, this Greek mythology release is the trade-off worth knowing about. I enjoyed playing it, especially as I got regular small wins which kept me going.

Unlike most studios its size, NextSpin hasn't chased whatever mechanic was trending since 2018. Its nine European patents center on the MegaWins reel system specifically. The other mechanics below are common features across the catalogue, not patents. From Pay Anywhere's looser payline rules to the jackpot layer sitting quietly in the background, each one changes how a session actually feels.
MegaWins is NextSpin's own patented reel system, and it's worth being precise about what it is not. A naming note worth flagging: MegaWins is not a licensed version of Big Time Gaming's Megaways mechanic, despite how similar the names sound. Each reel can display anywhere from two to seven symbols on a given spin, and that variation generates the up to 32,400 ways to win quoted across titles like Roma II, Big CaiShen MegaWins and Bounty Hunt.
If you've played a Megaways title before, MegaWins will feel familiar in spirit, but it's a separate engine with separate math. Worth noting: NextSpin's own promo banners occasionally use "Megaways" loosely as shorthand, though the individual game pages stick to "ways to win" and never use that name.
This is the mechanic doing the most work across NextSpin's newer releases. After a win, symbols clear and new ones drop into the empty spaces, repeating if those create another win. Fortune Familiar and Prosperity Horse both build a multiplier that climbs with each cascade, so a modest first win can snowball into something bigger before the chain breaks.
A second naming note: NextSpin's own game descriptions sometimes call this "avalanche" style play, which is not the same as NetEnt's trademarked Avalanche Reels mechanic from Gonzo's Quest. The two share an idea but are separate systems from separate studios, not shared or licensed technology. Cascading reels of this kind are common industry-wide, and NextSpin pairs its version with its own MegaWins ways structure.
A handful of current titles, Legend of Guan Gong and Fortune Familiar among them, run a progressive jackpot alongside the main MegaWins game rather than as a separate side bet. The pool builds from real-money stakes across the casinos offering that title, sitting quietly until a trigger condition is met. I never landed one during testing, so I can't confirm the exact trigger firsthand, but its presence changes how a session feels since every base-game spin doubles as a jackpot ticket.
This one isn't unique to NextSpin, most modern studios offer some version, but it's worth knowing how NextSpin implements it. Several current titles, Roma II, Golden West, Zeus Mighty Wealth and Fortune Familiar among them, let you pay directly for free spins entry instead of waiting for scatter symbols to land. It trades a larger upfront stake for guaranteed access to the bigger multipliers. Feature buy is restricted or banned outright by some regulators, the UK Gambling Commission among them, so availability depends on your operator and jurisdiction.
Several titles, Royal Gems Match among them, drop the fixed payline entirely and pay out whenever enough matching symbols land anywhere on the grid, regardless of position. I noticed the effect most in the free spins, where a cluster of matching gems scattered across unrelated reels still triggered a full payout. It's easier to read at a glance, though it doesn't change your actual odds.
Heather GartlandThe first time I watched a NextSpin reel jump from two symbols to seven mid-session, I genuinely assumed it was a display glitch. It isn't. That's the whole mechanic working exactly as patented.
A studio's newest releases say more about where it's headed than its back catalogue, and NextSpin's last year points to two things. A growing progressive jackpot layer on MegaWins, and a move beyond Asian fortune themes into Wild West, Greek mythology and now Mexican fiesta territory.
I have listed the newest releases in the table below:
|
Title |
Release Date |
What Makes It Worth a Look |
|
Mariachi Fiesta |
August 2026 |
NextSpin's newest release, a Mexican fiesta theme with 1,024 ways to win |
|
Nom Nom Fat Cat |
July 2026 |
High volatility, with a progressive multiplier climbing to 10x |
|
Pharaoh Fortune Realm |
April 2026 |
Drops the usual MegaWins engine for a fixed 1,024-ways structure with a cascading multiplier layered on top |
|
Prosperity Horse |
January 2026 |
Pairs Asian fortune symbolism with a sci-fi visual theme, an unusual combination |
|
Fortune Familiar |
December 2025 |
The newest title to carry a built-in progressive jackpot alongside its core MegaWins mechanic |
|
Bounty Hunt |
September 2025 |
A full reskin of the Wild West theme into gothic vampire horror, on the 32,400-way MegaWins engine |
Mariachi Fiesta
Release Date
August 2026
What Makes It Worth a Look
NextSpin's newest release, a Mexican fiesta theme with 1,024 ways to win
Nom Nom Fat Cat
Release Date
July 2026
What Makes It Worth a Look
High volatility, with a progressive multiplier climbing to 10x
Pharaoh Fortune Realm
Release Date
April 2026
What Makes It Worth a Look
Drops the usual MegaWins engine for a fixed 1,024-ways structure with a cascading multiplier layered on top
Prosperity Horse
Release Date
January 2026
What Makes It Worth a Look
Pairs Asian fortune symbolism with a sci-fi visual theme, an unusual combination
Fortune Familiar
Release Date
December 2025
What Makes It Worth a Look
The newest title to carry a built-in progressive jackpot alongside its core MegaWins mechanic
Bounty Hunt
Release Date
September 2025
What Makes It Worth a Look
A full reskin of the Wild West theme into gothic vampire horror, on the 32,400-way MegaWins engine
NextSpin's library has nearly 70 titles, mainly slots, a small slice of the full slots catalogue tracked across every provider on this site. Beyond slots there's a small arcade section, one fishing game, and a single instant-win title, so live tables and RNG table games aren't on offer. The catalogue leans heavily toward Asian fortune and cultural themes, from Mahjong tile sets to Chinese zodiac symbolism to titles like Shake Thai Thai and Taiga 88. That's not incidental.
Four recurring series make up the backbone of the catalogue:
NextSpin doesn't operate its own casino, so every Nextspin slot runs through a third-party licensed operator. I found no current evidence of NextSpin supplying regulated US real-money casinos or the major US sweepstakes platforms. Best options are internationally licensed operators serving Europe and Asia under NextSpin's MGA-regulated framework, plus confirmed availability in Canada outside Ontario. Demo play varies by operator and title.
A studio this focused has real strengths and a few real limits. Which side matters more depends on what you want from a slot. Here's the full picture.
Yes, within the markets it operates in. NextSpin says it operates under Malta Gaming Authority regulations, covering most European operators carrying its games, and is reported as accredited by the Philippine Amusement and Gaming Corporation for Philippine-regulated distribution, unconfirmed on PAGCOR's own public records. I found no record of a standalone UK Gambling Commission licence, so UK player protection comes down to whichever operator you're playing through.
On the fairness side, NextSpin's RNG has been evaluated by BMM Testlabs, an independent lab accredited to ISO 17025 for testing and ISO 17020 for inspection. That report covers the RNG's randomness, not each game's individual RTP figure, so treat the percentages here as NextSpin's own stated numbers unless a regulator's public database says otherwise.
Operators can and do run different RTP configurations of the same game. The 97.05% quoted for Roma II is NextSpin's default figure, but your casino may run a different build. Check the in-game info panel, usually an "i" icon near the paytable, before your first spin. The license explained page breaks down what each regulator checks.
Not every player will find nextspin games the right fit, given the tight MegaWins focus and Asian-leaning catalogue. A few alternatives worth checking from the wider list of software providers.
Pragmatic Play: Gibraltar-based, with 500-plus slots built around accessible bonus rounds rather than NextSpin's tighter, specialised catalogue.
NetEnt: Also Stockholm-founded, though at a different scale, with a 200-plus title library dating to 1996, now owned by Evolution Gaming.
Quickspin: Another Swedish studio, now owned by Playtech, known for cinematic visuals and its own Feature Trigger bonus-buy tool.
Yes. NextSpin says it operates under Malta Gaming Authority regulations and is reported as PAGCOR-accredited for Philippine-regulated distribution. I found no standalone UKGC licence.
The studio's real distribution strength runs through Philippine-regulated markets, and its Mahjong and Prosperity series reflect that audience.
No. MegaWins is NextSpin's own independently patented system, built on variable symbol counts per reel, not a licensed version of Big Time Gaming's Megaways.
Compared to other studios, nextspin games stand out for an in-house patented mechanic, an unusually tight RTP band across this shortlist, and a narrowly specialised Asian-themed portfolio rather than a broad, unfocused one.
Mariachi Fiesta, released August 2026 with up to 1,024 ways to win..
Of the best nextspin slots I tested, Big CaiShen MegaWins gives the clearest look at the studio's signature mechanic. For the highest RTP on record, try Princess of Ra at 97.06%.
Open the in-game info panel, usually an "i" icon near the paytable, before your first spin. Operators can run different RTP configurations of the same title.
Licensed operators carrying NextSpin under its MGA-regulated framework, mainly across Europe and Asia, plus confirmed availability in Canada outside Ontario. I found no current evidence it's supplied to US real-money or sweepstakes casinos.
Heather Gartland is a seasoned casino content editor with over 20 years of experience in the online gambling industry. She specialises in casino reviews, pokies, bonuses, and responsible gambling content, helping players make informed decisions. Based in New Zealand, Heather brings a practical, player-first perspective to every article she writes.