Gameburger Studios brands itself as US-style content for non-US markets — “big, bold and full of flavor” — and backs the slogan with one of the more unusual portfolios on this site: a house of Masks of Fire, Pots of Gold and, remarkably, the continuing Megaways-branded life of Mega Moolah, the slot that made the progressive jackpot record book. Founded in 2019 and distributed exclusively through Games Global’s network reaching 900+ operator brands, the studio never sells direct — every game arrives at a UK casino via that one route. Our verdict: 7/10. This review covers the best Gameburger slots ranked, where UK players can spin them, and the full licence file.

Where to Play Gameburger Studios Slots

Gameburger Studios at a glance

The essentials — a US-flavoured studio that reaches every UK casino through exactly one distribution pipe.

Full nameGameburger Studios — US-based development team
Founded2019
Key peopleMatt Carvajal, Creative Designer; team collectively holds 20+ years of industry experience
UK licence routeDistributed exclusively through Games Global’s licensed network (Games Global Operations Limited, UKGC account 58841, Gambling Software licence active since 15 February 2022). See the licence explained
Origin partnershipSigned with Microgaming in 2019, now folded into Games Global’s 2023 rebrand/merger
Catalogue24 titles confirmed live, built around a small number of recurring franchises
Typical RTPMostly 96–96.6% on originals; Mega Moolah Megaways notably lower at 86.70% (progressive-funded) — see the maths
Flagship mechanicsMasks of Fire coin-collect jackpots, Pots of Gold jackpot ladders, licensed Megaways engine
Best-known games9 Masks of Fire, Mega Moolah Megaways, Tarzan and the Jewels of Opar
Our score7/10full verdict below

✓ Facts checked against the UKGC business licence register and the studio’s own site (game-burger.net) — 12 July 2026

The best Gameburger slots: 10 games that actually matter

Ten releases spanning the studio’s two core franchises and its most unusual credit — carrying the Mega Moolah name forward. RTP and max-win figures are published defaults reported by third-party review coverage. The full ranked catalogue is near the end of the page.

Gameburger Studios' best slots — 9 Masks of Fire, Mega Moolah Megaways, Tarzan and the Jewels of Opar and more, ranked by Slot Providers

1. 9 Masks of Fire (2019)

The game that put Gameburger on the map, released the same year the studio was founded and still the anchor of its identity. A tribal-fire theme on a 20-line grid with a coin-collect jackpot ladder — land enough Mask symbols and trigger one of four fixed prizes. Published figures put it at 96.24% RTP. It performed well enough on launch to spawn the studio’s entire Masks of Fire franchise, now three generations deep.

9 Masks of Fire slot gameplay — tribal fire mask jackpot reels

2. Mega Moolah Megaways (2023)

The most improbable entry in Gameburger’s catalogue: a Megaways-engine continuation of Mega Moolah, the single most famous progressive jackpot slot ever made (its 2018 win of €18.9m remains a Guinness World Record). Gameburger built this Megaways variant under the Games Global umbrella that now owns the Mega Moolah IP, layering the up-to-117,649-ways cascading engine onto the safari theme and the same four-tier progressive jackpot — Mini, Minor, Major, Mega. Published base RTP sits around 86.70%, low by this site’s usual standard, but that figure funds the jackpot pool rather than reflecting poor value; the studio didn’t create the legend, but keeping it alive says something about the trust Games Global placed in the team.

Mega Moolah Megaways slot gameplay — safari themed progressive jackpot reels

3. Tarzan and the Jewels of Opar (2020)

A licensed Edgar Rice Burroughs jungle-adventure theme — one of Gameburger’s rare forays into branded IP rather than an original concept. Published RTP sits at 96.38%, with a feature wheel bonus round layered over the jungle setting. It’s a useful data point that the studio can work within licensing constraints as comfortably as it builds its own franchises.

Tarzan and the Jewels of Opar slot gameplay — jungle adventure reels

4. 12 Masks of Fire Drum Frenzy (2025)

The franchise’s most recent sequel, expanding the original’s jackpot ladder from nine to twelve mask positions and adding a drum-themed multiplier round. Published RTP of 96.05% sits close to the original, and the game is the clearest evidence Gameburger keeps actively iterating its most successful format rather than resting on the 2019 original.

12 Masks of Fire Drum Frenzy slot gameplay — drum multiplier jackpot reels

5. 9 Masks of Fire HyperSpins (2023)

A HyperSpins-format reworking of the original, keeping the same 96.24% RTP and jackpot ladder but adding respin mechanics that let symbols lock and re-trigger across an extended spin sequence. Alongside 12 Masks of Fire, it shows Gameburger treating its breakout hit as a platform to iterate on rather than a one-off release.

9 Masks of Fire HyperSpins slot gameplay — respin jackpot reels

6. 9 Pots of Gold Megaways (2022)

The studio’s second core franchise, Pots of Gold, gets the Megaways treatment: a leprechaun-and-clover theme with the studio’s coin-collect jackpot ladder layered under a cascading, variable-ways reel structure. Published RTP of 96.10%. Between Masks of Fire and Pots of Gold, Gameburger has effectively built two parallel jackpot-ladder franchises with different visual identities but the same underlying maths philosophy.

9 Pots of Gold Megaways slot gameplay — leprechaun jackpot reels

7. Hyper Strike Cash Megaways (2024)

A retro-fruit-machine-styled Megaways release with a cash-symbol collection bonus, published at 96.10% RTP. It sits outside both core franchises, suggesting Gameburger occasionally tests standalone concepts rather than only extending Masks of Fire and Pots of Gold.

Hyper Strike Cash Megaways slot gameplay — retro fruit cash reels

8. 9 Pots of Gold King Millions (2024)

A King Millions-branded variant of the Pots of Gold format, adding an escalating multiplier meter on top of the usual jackpot ladder. Part of the same iterative pattern seen across the Masks of Fire franchise: take a working format, apply a different bonus modifier, ship a sequel.

9 Pots of Gold King Millions slot gameplay — multiplier jackpot reels

9. Mining Pots of Gold (2023)

A gold-rush mining theme on the Pots of Gold jackpot-ladder chassis, one of several thematic reskins of the same underlying format. Competently built rather than groundbreaking — representative of how much of Gameburger’s mid-catalogue operates once you’ve seen the flagship two or three times.

Mining Pots of Gold slot gameplay — gold rush jackpot reels

10. Day of the Dinero (2024)

A Day of the Dead-themed release, one of the more visually distinctive standalone titles in the catalogue outside the two main franchises. Sugar-skull symbol art and a Mexican folk-art palette set it apart from the studio’s usual fire-and-gold colour schemes, even if the underlying bonus structure follows familiar Gameburger lines.

Day of the Dinero slot gameplay — Day of the Dead themed reels

Gameburger vs its rivals

The studios a Gameburger player is realistically choosing between — other Games Global house studios and jackpot-ladder specialists.

StudioFoundedCalling cardTypical mathsUK ubiquity
Gameburger Studios2019US-style jackpot-ladder franchises, Mega Moolah continuation~96% RTP originals; Mega Moolah Megaways 86.70%High — distributed via Games Global’s full network
Oryx Gaming2010Bragg-owned house of five sub-studios~96% RTPModerate
Booming Games2014Hold-and-Win-adjacent, celebrity crossovers~96% RTPModerate
Games Global2023 (Microgaming legacy)The multi-studio umbrella Gameburger ships throughVaries by house studioVery high

The honest comparison: Gameburger’s UK reach is effectively borrowed from Games Global’s distribution scale rather than built independently, which is exactly the same relationship Oryx has with Bragg’s Wild Streak Gaming sub-studio. What sets Gameburger apart is the Mega Moolah connection — no other small studio on this site carries responsibility for a name with that level of recognition, jackpot record included.

The game families in depth

The Masks of Fire franchise

9 Masks of Fire (2019) → 9 Masks of Fire HyperSpins (2023) → 12 Masks of Fire Drum Frenzy (2025). The studio’s defining franchise, all built on the same coin-collect jackpot-ladder chassis with escalating modifiers — HyperSpins added respin mechanics, Drum Frenzy expanded the mask count and added a multiplier round. Three generations deep and still Gameburger’s most consistently referenced release when the studio is discussed anywhere online.

The Pots of Gold franchise

9 Pots of Gold Megaways, 9 Pots of Gold King Millions and Mining Pots of Gold all share the same jackpot-ladder foundation as Masks of Fire, reskinned around a leprechaun/gold-rush theme rather than tribal fire. It’s effectively a parallel franchise running the identical underlying mechanic under different branding — a pattern of reskinning rather than reinventing that recurs through much of the studio’s mid-catalogue.

Coverage note

Mega Moolah Megaways and Tarzan and the Jewels of Opar sit outside both franchises — one a continuation of acquired IP, the other a licensed brand tie-in — and we’ve covered them individually in the top 10 rather than forcing a family grouping that doesn’t exist.

Signature mechanics & technology

Gameburger’s identity rests on one recurring structural idea, applied to two different visual franchises.

The jackpot ladder

Both Masks of Fire and Pots of Gold use the same core format: collect enough trigger symbols and land one of typically four fixed prize tiers instantly. It’s a format shared with several other studios on this site (Platipus, for one), but Gameburger applies it with more thematic consistency across a genuine multi-generation franchise than most.

Licensed Megaways

Several recent releases — 9 Pots of Gold Megaways, Hyper Strike Cash Megaways, and most notably Mega Moolah Megaways — use the Big Time Gaming-originated Megaways engine under licence, layering variable-ways cascading reels on top of the studio’s own jackpot-ladder bonus structure. Combining a licensed engine with an in-house bonus format is Gameburger’s most technically interesting move.

Exclusive Games Global distribution

Unlike studios that sell direct or through multiple aggregators, Gameburger operates entirely through Games Global’s network — a deliberate, stated choice on the studio’s own site. It removes the need to build separate UK regulatory infrastructure, but it also means Gameburger’s UK visibility rises and falls with Games Global’s own commercial reach rather than the studio’s independent brand recognition.

Gameburger slots RTP: what the numbers actually say

Gameburger’s original titles cluster tightly in a 96–96.6% band — 9 Masks of Fire and its HyperSpins variant both publish 96.24%, 9 Pots of Gold Megaways 96.10%, and Tarzan and the Jewels of Opar 96.38%. The clear outlier is Mega Moolah Megaways at 86.70%, which sits far below the site’s usual range for a reason worth understanding rather than penalising outright: a meaningful slice of every stake on a progressive jackpot slot funds the pooled prize rather than the base game’s return, which structurally depresses the published base RTP figure. It’s the same trade-off every Mega Moolah variant has always made, not a Gameburger-specific shortfall. Always check the in-game paytable at your chosen casino before you play, since these are published defaults rather than studio-guaranteed figures.

A short history of Gameburger Studios

YearWhat happened
2019Gameburger Studios founded in the US; signs a content deal with Microgaming; releases 9 Masks of Fire, the studio’s breakout hit
2020Tarzan and the Jewels of Opar released — a licensed Edgar Rice Burroughs IP tie-in
20229 Pots of Gold Megaways launches the studio’s second core franchise; Games Global Operations Limited’s UK software licence goes active (15 February)
2023Microgaming’s operations fold into the newly formed Games Global; Mega Moolah Megaways released, extending the legendary Mega Moolah name into the Megaways format; 9 Masks of Fire HyperSpins and Mining Pots of Gold ship
2024Hyper Strike Cash Megaways, 9 Pots of Gold King Millions and Day of the Dinero released, broadening the catalogue outside the two main franchises
202512 Masks of Fire Drum Frenzy launches, the flagship franchise’s third generation

The pattern across seven years is consistent: a small US team, one distribution partner throughout (Microgaming, then Games Global after the 2023 restructuring), and steady iteration on two proven jackpot-ladder franchises rather than a wide experimental spread.

The people behind Gameburger

Gameburger Studios describes itself as “a collective of industry specialists and technology experts” with more than 20 years of combined experience, rather than fronting a single named founder in its public materials. Matt Carvajal is identified as the studio’s Creative Designer, the most visible name associated with its output. The studio is US-based and has operated under the same exclusive Games Global (formerly Microgaming) distribution relationship since 2019, without a public ownership change or rebrand in that time.

Gameburger Studios history — 2019 founded, signs with Microgaming, 2023 distributed via Games Global, Creative Designer Matt Carvajal

Is Gameburger fair?

Yes. Gameburger Studios does not hold a UKGC licence in its own name — its games reach UK players entirely through Games Global Operations Limited‘s licence, UKGC account 58841, which holds active Remote Gambling Software and Game Host (Casino) licences dated 15 February 2022. This is the same “distributed under a licensed publisher” structure seen elsewhere on this site (Peter & Sons via SkillOnNet, Wild Streak Gaming via Oryx/Bragg) — every Gameburger game served to a UK player runs under active UKGC-certified RNG testing regardless of which studio name appears on the box. We found no regulatory actions, fines or disputes involving Gameburger anywhere. You can verify Games Global’s licence yourself on the UKGC public register.

Gameburger big win videos

No verified record-win press release exists specifically crediting Gameburger’s own releases, so here’s genuine gameplay coverage for the studio’s two most significant games — including a real Mega Moolah progressive jackpot hit, even though that particular win predates the Megaways variant Gameburger built.

First video: 9 Masks of Fire HyperSpins feature breakdown (GamblerID). Second: a genuine £2.77m Mega Moolah progressive jackpot win — illustrative of the jackpot pool Mega Moolah Megaways feeds into, not a Gameburger-specific release.

Beyond the reels

The details that don’t fit neatly into a ranked list:

The company behind the games

game-burger.net keeps its public profile deliberately lean — a games showcase, a short “who we are” statement built almost entirely around the studio’s US-diner branding conceit, and a single confirmed fact about distribution: content flows exclusively through Games Global’s network to “over 900 of the world’s top gaming brands.” It’s one of the more tightly controlled public profiles on this site — no leadership bios beyond Matt Carvajal, no financial disclosures, no acquisition history to report because there hasn’t been one.

Carrying the Mega Moolah torch

Mega Moolah’s 2018 win of £13.2m for a British soldier and its earlier €18.9m Guinness World Record are among the most-cited facts in online slots history. That Games Global entrusted a small US studio with continuing that legacy into the Megaways era, rather than keeping it in-house, is a genuine vote of confidence — and arguably the single most notable thing about Gameburger’s entire portfolio.

A theme-park approach to franchising

Rather than one flagship and a scattering of unrelated titles, Gameburger runs two parallel jackpot-ladder franchises (Masks of Fire, Pots of Gold) with different visual skins over identical underlying maths — closer to how a theme park reuses one ride mechanism under different branding than how most slot studios build a catalogue.

New Gameburger slots: what’s launched recently

The 2025–26 slate has focused on deepening the Masks of Fire franchise’s third generation rather than launching new concepts.

GameReleasedFranchise
12 Masks of Fire Drum Frenzy2025Masks of Fire
Day of the Dinero2024Standalone
9 Pots of Gold King Millions2024Pots of Gold
Hyper Strike Cash Megaways2024Standalone

Release years per third-party review coverage, checked 12 July 2026. Gameburger does not publish exact release dates as consistently as some rivals.

What players say

Community discussion of Gameburger tends to orbit two poles: genuine enthusiasm for the Masks of Fire franchise’s consistency, and curiosity (occasionally confusion) about the studio’s role in continuing Mega Moolah. Players who’ve followed the Masks of Fire sequels praise the format for delivering exactly what it promises — a jackpot ladder that feels fair and frequently reachable rather than a distant chase. The recurring criticism is thematic repetition: once you’ve played one Pots of Gold variant, several others feel like the same game with a different coat of paint. Nobody disputes the studio’s technical competence; the debate is entirely about whether two franchises are enough.

Which Gameburger slot should you play?

You want…Play
The definitive Gameburger experience9 Masks of Fire — the original that built the franchise
A shot at the most famous jackpot in slotsMega Moolah Megaways
Licensed IP done wellTarzan and the Jewels of Opar
The franchise at its newest12 Masks of Fire Drum Frenzy
Something visually distinctiveDay of the Dinero

Our verdict on Gameburger Studios

Slot Providers score: 7/10 — a small, focused US studio that built two consistently reliable jackpot-ladder franchises and earned the trust to continue the Mega Moolah legacy, held back by thematic repetition across its mid-catalogue and total dependence on Games Global’s distribution reach.

Game quality7/10 — consistently competent, with 9 Masks of Fire and Mega Moolah Megaways as genuine standouts
Innovation6/10 — the jackpot-ladder format is well-executed but reused across most of the catalogue
Maths & transparency7/10 — consistent published RTPs on originals; the Mega Moolah figure needs context but isn’t hidden
Mobile experience7/10 — standard Games Global infrastructure, reliable across devices
Catalogue depth6/10 — 24 titles is respectable for seven years, though heavily concentrated in two franchises

Pros

  • Two consistently well-built jackpot-ladder franchises, iterated across multiple generations
  • Entrusted with continuing the legendary Mega Moolah name into the Megaways era
  • Exclusive Games Global distribution means wide, reliable UK availability
  • Consistent, stable studio with no ownership churn since 2019

Cons

  • Heavy thematic repetition across the Pots of Gold sub-family
  • No UKGC licence in its own name — entirely dependent on Games Global’s
  • Mega Moolah Megaways’ 86.70% base RTP needs context to understand fairly
  • Little public information about the studio beyond its games and one named designer

Gameburger suits players who like a dependable jackpot-ladder format and want a shot at the Mega Moolah name specifically. Look elsewhere if you want broader thematic variety (Spinomenal’s 300+ titles) or a studio with its own direct UK licence rather than a borrowed one (Wazdan, Playson).

Every Gameburger slot, ranked

All 24 confirmed titles, the ten essentials first.

#SlotFranchiseIn one line
19 Masks of FireMasks of FireThe 2019 original that built the studio’s identity
2Mega Moolah MegawaysStandaloneContinuing the most famous progressive jackpot name in slots
3Tarzan and the Jewels of OparStandaloneLicensed Edgar Rice Burroughs jungle adventure
412 Masks of Fire Drum FrenzyMasks of FireThe franchise’s third generation, expanded ladder
59 Masks of Fire HyperSpinsMasks of FireRespin-format reworking of the original
69 Pots of Gold MegawaysPots of GoldThe second core franchise’s Megaways flagship
7Hyper Strike Cash MegawaysStandaloneRetro fruit-machine cash-collection Megaways
89 Pots of Gold King MillionsPots of GoldKing Millions escalating-multiplier variant
9Mining Pots of GoldPots of GoldGold-rush reskin of the jackpot-ladder format
10Day of the DineroStandaloneDay of the Dead themed, visually distinctive
119 Pots of Gold HyperSpinsPots of GoldRespin variant of the Pots of Gold format
129 Mad Hats King MillionsStandaloneAlice-in-Wonderland-flavoured jackpot ladder
13Break Da Bank Again MegawaysStandaloneMegaways continuation of a Microgaming-era classic
14Break Da Bank Again RespinStandaloneRespin-format sibling release
15Hyper Gold All InStandaloneGold-themed cash-collection release
16Hyper StarStandaloneSpace/star-themed jackpot format
17Hyper Strike HyperSpinsStandaloneRespin sibling of Hyper Strike Cash Megaways
18Hyper VikingStandaloneNorse-themed jackpot ladder
19Joker Rush GoldStandaloneClassic-joker theme with gold-collection bonus
20Fishin’ Bigger Pots of GoldPots of GoldFishing-themed jackpot-ladder variant
21Fishin’ Christmas Pots of GoldPots of GoldSeasonal fishing-and-jackpot release
22Fishin’ Pots of GoldPots of GoldThe original fishing-themed entry in the family
23777 SurgeStandaloneClassic sevens format with a surge multiplier
2411 ChampionsStandaloneSports-themed release, one of the studio’s smaller titles

Catalogue checked against clashofslots.com’s Gameburger hub and third-party review coverage, 12 July 2026. Gameburger does not publish exact release years as consistently as some rivals, so several lower-table entries omit a year rather than guessing one.

Popular UKGC-licensed casinos with Gameburger slots

Because distribution runs entirely through Games Global’s network, Gameburger’s catalogue reaches the same broad set of UK casinos that carry Games Global’s other house studios.

CasinoDomainWhat you’ll find
888casino888casino.comBroad Games Global network coverage including the Masks of Fire and Pots of Gold franchises
Betwaybetway.comWide slots library carrying Games Global-distributed studios, including Mega Moolah variants

We have no commercial relationship with any casino listed. Availability varies by operator and can change — always verify any operator on the UKGC public register before depositing. 18+, please gamble responsibly. Checked 12 July 2026.

How this page was researched

Primary sources: the UKGC business licence register (Games Global Operations Limited, account 58841, checked 12 July 2026); Gameburger Studios’ own site (game-burger.net) for founding statement and distribution model; clashofslots.com’s Gameburger hub and bigwinboard.com for the current game catalogue, RTP figures and screenshots; and YouTube for gameplay and jackpot-win video. Spotted an error? Tell us and we’ll fix it with a note.

Gameburger Studios FAQs

Who owns Gameburger Studios?

Gameburger describes itself as an independent collective of US-based industry specialists rather than naming a single founder publicly. Matt Carvajal is its named Creative Designer. It distributes exclusively through Games Global.

Is Gameburger licensed in the UK?

Gameburger does not hold a UKGC licence in its own name. Its games reach UK players entirely through Games Global Operations Limited’s active licence, UKGC account 58841, granted 15 February 2022.

Are Gameburger slots fair, or rigged?

Fair. Every Gameburger game runs under Games Global’s active UKGC-certified software licence with certified RNG testing. We found no regulatory actions or disputes involving the studio anywhere.

What is the best Gameburger slot?

9 Masks of Fire (2019) remains the studio’s defining release and the foundation of its longest-running franchise, now three generations deep.

Does Gameburger really make Mega Moolah?

Gameburger built Mega Moolah Megaways, a Megaways-format continuation of the legendary Mega Moolah progressive jackpot slot, under the Games Global umbrella that now owns the Mega Moolah IP. It did not create the original Mega Moolah.

Where can I play Gameburger slots in the UK?

Via any UK casino connected to Games Global’s distribution network, including 888casino and Betway among many others.

Why is Mega Moolah Megaways’ RTP so much lower than other Gameburger games?

Its published 86.70% base RTP reflects that a portion of every stake funds the progressive jackpot pool, structurally lowering the base game’s return — the same trade-off every Mega Moolah variant has made since the original.

What is Gameburger’s signature mechanic?

A coin-collect jackpot ladder (typically four fixed prize tiers) applied across its two core franchises, Masks of Fire and Pots of Gold, often combined with a licensed Megaways engine on newer releases.

How many slots has Gameburger made?

24 confirmed titles as of July 2026, concentrated mainly in the Masks of Fire and Pots of Gold franchises alongside a handful of standalone releases.

Is Gameburger a new studio?

No — founded in 2019, making it seven years old, with a consistent release cadence and no ownership changes throughout that period.

Jack Henshaw

· Head Writer

Jack spent years in slot QA and platform integration before turning reviewer — reading studios’ maths sheets and RTP configurations was literally his job. Every fact on this page is checked against the Gambling Commission register and the best available published data. More about Jack →