Spinomenal
Spinomenal is a Malta-registered HTML5 slot studio founded in 2014, licensed by the UKGC, MGA, HGC and Romania’s ONJN, with RNG testing by eCOGRA and BMM Testlabs.
Its 300+ slot catalogue includes a Retro Gaming line and the Universe Concept, linking titles through shared characters across the casinos listed above.


- 10,000+ games and 174 live tables
- Cashback up to 20% total
- VIP welcome bonus of up to $60,000
iWild Casino is a Goodwin N.V. brand launched in 2021 under a Curacao license. The site offers 10,000+ games, 174 live dealer tables, fiat and crypto payments, cashback up to 20%, and two welcome packages: a standard 550% casino bonus and a separate VIP offer for high rollers.

- Huge game lobby with 11,000+ slots
- VIP cashback up to 30%
- Many payment methods
Gamblezen Casino combines a huge game library, strong promotions, many payment options, and VIP cashback in a Curacao-licensed platform launched in 2023.
- Cashback up to 20%, wager-free
- Hype Shop with real rewards
- 9 account currencies supported
Hypekasino is a new online casino focused on gamified rewards, weekly promos, and a large multi-provider game library. The main highlight is Hype Shop, where Hype Coins can be exchanged for wager-free free spins, bonus games, bonus money, and even real cash. It also supports several fiat account currencies, 24/7 live chat, and loyalty-based withdrawal upgrades.

- 42+ fiat & crypto currencies supported
- Regular slot tournaments
- VIP improves real conditions
Bizzo Casino is a Curacao-licensed online casino launched in 2021 with 5,000+ games, 20+ account currencies, app support, weekly promos, and withdrawal limits up to €/$4,000 per day. Payments and bonus terms can vary by country and promo version.
- Huge game library and fast withdrawals
- Top payments, crypto, fast cashouts
- Local banking + instant withdrawals
Riobet was one of the first casinos to introduce CP-based quests that reward players with bonuses and status progress.

- 3,000+ games from 45+ providers
- Casino bonuses + Sports bonuses
- No cashout caps
TonyBet.nl is a unique casino and sportsbook platform for the Netherlands. You get 3,000+ games, fast banking, two bonus programmes and no cashout limits. Withdrawals are typically 12–24 hours, but some methods can take up to several business days.

- Generous welcome bonus
- Casino and sportsbook together
- VIP tiers with cashback
Starda combines casino games and sports betting on the same platform and backs that up with a busy promotions calendar. The welcome package is larger than average, while cashback, Birthday bonus, VIP rewards, and sports bonuses make the account more useful over time instead of only at signup.

- 2-step welcome package
- Casino and sportsbook together
- VIP tiers with cashback
Starda combines casino games and sports betting on the same platform and backs that up with a busy promotions calendar. The welcome package is larger than average, while cashback, weekly reloads, VIP rewards, and sports bonuses make the account more useful over time instead of only at signup.

- 4-step welcome package
- Casino and sportsbook together
- VIP tiers with cashback
Starda combines casino games and sports betting on the same platform and backs that up with a busy promotions calendar. The welcome package is larger than average, while cashback, weekly reloads, VIP rewards, and sports bonuses make the account more useful over time instead of only at signup.

- 4-step welcome package
- Fast withdrawals in most cases
- Weekly cashback and reloads
Trickz is a promo-heavy online casino built around a 4-step welcome pack, weekly rewards, and a loyalty model that adds more value over time. The platform also stands out for fast withdrawals, broad payment coverage, and recurring provider campaigns that keep the promotions page active after signup.

- Casino and sportsbook together
- 6,000+ games plus weekly promos
- Weekly cashback up to 20%
Winnerz is a multi-product platform that combines online casino play with sportsbook betting under one account. The biggest draw is not only the welcome package, but the way weekly cashback, loyalty rewards, weekend promos, provider tournaments, and sports campaigns keep the platform active after the first deposits.
Spinomenal Casinos — Games, Fairness and Where to Play
Spinomenal carries games at more casinos in this catalogue than any other studio tracked here, placing first of 519 providers ranked by how many casinos list their titles. For scale, Hacksaw sits at 138 casinos and Betsoft at 134, while a studio like Jili appears at a single casino.
Who Is Spinomenal
Spinomenal was founded in 2014 as a business providing content and technological solutions to the online casino industry, under its legal entity SubTech Ltd, registered in Malta. Lior Shvartz is the studio's founder and CEO. The studio holds a UK Gambling Commission Combined Remote Operating Licence (number 000-058210-R-335436-001, issued 03.08.2022), an MGA Recognition Notice (RN/025/2024, issued 24.09.2024), a Hellenic Gaming Commission Class A1 Manufacturer's Eligibility Permit (HGC-000098-MN, issued 01.12.2022), and a Romanian ONJN Class II Licence (Government Decision No. 206, issued 25.02.2022). Great Britain was the fifth jurisdiction to grant the studio a gaming licence, following earlier approvals from regulators in Malta, Sweden, the Netherlands and Romania. Game fairness is validated through RNG certification by eCOGRA and BMM Testlabs, and the studio also holds ISO 27001 certification for information security practices. Across its portfolio, Spinomenal runs a Universe Concept, linking several titles through shared characters and recurring themes, alongside signature mechanics such as Book-style expanding symbols, Synced Reels, Hold & Hit respins, Mega Symbols, Bonus Buy and variable payline structures running from 5 up to 100 lines.
Which Spinomenal Games Suit Which Player
Two Spinomenal titles carry published parameters in this catalogue, and both sit on the high-volatility end of the studio's range. Reel Buffalo runs at a theoretical RTP of 88.85%, pays out a top win of x500 the stake, and combines Jackpot and Symbol collection mechanics — a fit for a player who accepts long stretches without a win in exchange for the chance at a larger single payout, and who sets a stop-loss before starting a session, since the stake-to-payout ceiling is a maximum, not a typical outcome. 1 Reel – Cash Vault is built on the same high-volatility profile, which suits the same kind of player rather than someone looking for frequent small returns.
A player who prefers steadier, more frequent smaller wins is not well matched to either Reel Buffalo or 1 Reel – Cash Vault: high volatility by definition means the opposite trade-off, and no Spinomenal title in this catalogue currently publishes a low- or medium-volatility alternative.
RTP, Volatility and Fairness
RTP is a theoretical figure calculated over a very large number of spins, not a promise for any single session — Reel Buffalo's 88.85% describes the long-run return across the whole player base, and an individual session can finish well above or well below it. Volatility describes how that return is distributed: a high-volatility slot like Reel Buffalo or 1 Reel – Cash Vault pays less often but can produce larger individual wins, including Reel Buffalo's x500 ceiling, while a low-volatility game would return smaller amounts more frequently for the same average. Spinomenal's RNG certification is validated by eCOGRA and BMM Testlabs, independent testing labs that check whether the random number generator behind each title produces fair, unpredictable outcomes.
Common Misconceptions
A high-volatility title does not become "due" for a win after a losing streak — each spin on Reel Buffalo or 1 Reel – Cash Vault is generated independently by the certified RNG, with no memory of previous outcomes. The x500 top win listed for Reel Buffalo is a maximum the Jackpot and Symbol collection mechanics can produce, not a figure most sessions will reach;
Verdict on Spinomenal's Games
Beyond the individual releases tracked here, Spinomenal produces 1-3 new games monthly and maintains a broader portfolio of over 300 games, which includes HTML5 video slots as well as a dedicated Retro Gaming studio with classic slots.
Gambling is entertainment, not a way to make money or fix finances. Set deposit and time limits, take regular breaks, and use self-exclusion tools if play stops feeling like fun. Licensed operators provide these tools — using them is a sign of control, not weakness. Learn more on Responsible Gambling →
Update history
- Oct 14, 2026 — 5 facts added, 1 no longer stated.
- Oct 13, 2026 — Covered studio licensing, RNG auditors, game-by-game volatility and RTP, and player-fit guidance
- Sep 15, 2026 — Updated: attribution wording removed
- Sep 14, 2026 — Selection count updated to 126
- Sep 3, 2026 — Added studio licensing detail, RNG auditors, position among providers and casino-differences table
Spinomenal – FAQ
Which Spinomenal games are rated as popular?
Poseidon's Rising is named by the studio itself among its popular games, and it draws on the mythological theming that recurs across several Spinomenal titles.
What is the RTP on Spinomenal slots?
Reel Buffalo carries a published theoretical RTP of 88.85%, calculated over a large number of spins rather than guaranteed in any single session.
Who audits Spinomenal's games for fairness?
Spinomenal's RNG certification is validated by the independent testing labs eCOGRA and BMM Testlabs to verify fair random number generation in regulated markets, including Spain (DGOJ) and the New Jersey Division of Gaming Enforcement.
Are Spinomenal slots high or low volatility?
The Spinomenal titles with published volatility in this catalogue, Reel Buffalo and 1 Reel – Cash Vault, are both rated high volatility, meaning less frequent but potentially larger wins.
Where was Spinomenal founded and who runs it?
Spinomenal was founded in 2014 and is led by founder and CEO Lior Shvartz, with its legal entity SubTech Ltd registered in Malta.













