River of Styx from Pragmatic Play

RTP: 96.5%

Cross the river and uncover hidden treasures! Let the myths guide your path.

Cross the river and uncover hidden treasures with Pragmatic Play’s River of Styx, an exhilarating casino game that takes players on a dark and mystical journey through the Greek underworld. Released in May 2024, this dynamic online slot combines a captivating mythological theme with high-stakes bonus features, promising action-packed gameplay and the chance to land colossal payouts. With its high RTP, high volatility, and engaging free spins with special expanding symbols, River of Styx is a compelling classic slot designed for players seeking thrilling mechanics and lucrative rewards up to 5,000x their stake.

Provider: Pragmatic Play
Release Date: 2024
RTP: 96.50%
Volatility: High
Max Win: 5,000x
Theme: Greek Mythology / Underworld / Adventure
Rate Game
(0 Votes)
River of Styx from Pragmatic Play Play for Real

Having issues with River of Styx from Pragmatic Play ?


For players seeking a quick overview of the technical aspects, here’s a detailed table of River of Styx’s core features:

Feature Value
Reels 5
Rows 3
Paylines 10 (fixed)
Min Bet 0.10
Max Bet 250
Max Win 5,000x
Jackpot No
RTP 96.50%
Volatility High
Hit Frequency N/A

River of Styx plunges players into the dark and mysterious realm of the Greek underworld, where the legendary river flows. The online slot’s theme is a captivating adventure, focusing on the mythological journey to the afterlife. The visual style is rich and detailed, with a backdrop that showcases a gloomy, atmospheric landscape with the River of Styx, ancient ruins, and ethereal mists, creating an immersive experience for this casino game.

The graphics are beautifully rendered, with symbols that include classic card royals and various mythological figures and artifacts, such as Charon the ferryman, Cerberus, and golden drachmas. Animations are smooth and dynamic, particularly during winning combinations and the activation of bonus features, such as expanding symbols or the gates to the underworld opening. The sound design features an evocative soundtrack with eerie melodies and the sounds of flowing water, perfectly complementing the mythological theme and enhancing the overall engaging online slot experience.

  • Regular Symbols: The low-paying symbols are classic card royals (10, J, Q, K, A) often stylized with a ghostly or ancient design. Higher-paying symbols feature various figures and items from Greek mythology, such as Charon’s lantern, Cerberus, and the gods of the underworld. A powerful deity like Hades or Persephone is typically the highest-paying regular symbol.
  • Special Symbols:
    • Wild Symbol (Golden Drachma/Charon): A golden drachma or Charon himself acts as the wild and scatter symbol. As a wild, it substitutes for all other symbols to help form winning combinations.
    • Scatter Symbol (Golden Drachma/Charon): As a scatter, landing three or more of these symbols anywhere on the reels triggers the free spins bonus round.
    • Expanding Symbols: During the free spins feature, one random symbol is chosen to become a special expanding symbol, which covers entire reels for bigger wins.

Playing River of Styx is a straightforward experience, utilizing a classic 5-reel, 3-row layout with 10 fixed paylines. Wins are formed by landing three or more matching symbols on adjacent reels from left to right across a payline, starting from the leftmost reel. This high RTP slot ensures intuitive and exciting gameplay.

To begin your journey across the mythical river, set your desired bet amount using the ‘+’ and ‘-‘ buttons, with options ranging from a minimum of 0.10 to a maximum of 250 per spin. Once your wager is set, hit the spin button to set the reels in motion. An optional Ante Bet feature increases your stake by 50% to double your chances of triggering free spins. For practice or just for fun, River of Styx can be enjoyed as a free slot machine in demo mode. This online slot is fully optimized as a mobile slot, ensuring a seamless and engaging experience across all iOS and Android devices, allowing you to chase underworld treasures anywhere.

River of Styx is packed with thrilling bonus features designed to enhance your gameplay and deliver significant payouts:

  • Free Spins with Expanding Symbols: Landing three or more Scatter symbols triggers the free spins bonus round, awarding 10 initial free spins. Before the feature begins, one random regular symbol is chosen to become a special expanding symbol. When this chosen symbol lands and enough instances appear on different reels to form a win, they expand to cover their entire respective reels, paying out even on non-adjacent positions. This mechanic is similar to “Book of” style slots. The feature can be re-triggered by landing three or more additional Scatters during the round, awarding 10 extra spins.
  • Ante Bet: For an additional 50% on your current bet, you can activate the Ante Bet feature, which doubles your chances of naturally triggering the free spins bonus.
  • Bonus Buy: In some jurisdictions, players can directly purchase entry into the free spins round for 100x their current bet, bypassing the base game for immediate bonus action.

For strategic casino game players, a clear understanding of these core statistics is vital for informed gameplay.

  • RTP: River of Styx features a high RTP slot of 96.50%. This figure is comfortably above the industry average for online slots, indicating a favorable long-term return for players. However, Pragmatic Play often provides alternative RTP settings (95.50% and 94.50%), so it’s crucial to verify the RTP at your chosen casino.
  • Volatility: This online slot is characterized by high volatility. This means that while wins may be less frequent, they have the potential to be significantly larger, especially through the free spins with expanding symbols. High volatility gameplay is best suited for players with a robust bankroll and a patient approach, who are prepared for extended dry spells in pursuit of monumental payouts.

River of Styx by Pragmatic Play delivers an exciting and visually immersive casino game that effectively captures the dark allure of Greek mythology. With its high RTP of 96.50% and exhilarating high volatility, this online slot offers substantial payout potential up to 5,000x your stake. The compelling graphics, atmospheric soundtrack, and engaging bonus features, particularly the free spins with expanding symbols, ensure dynamic and exciting gameplay. If you’re a fan of mythological themes, enjoy high-risk, high-reward gameplay, and crave engaging bonus features, River of Styx is a fantastic choice that promises a legendary journey. Cross the river and claim your hidden treasures!

✅ Pros ❌ Cons
✅ Engaging Greek mythology/underworld theme with immersive graphics. ❌ High volatility may require significant patience.
✅ High RTP of 96.50% (in highest setting). ❌ Gameplay mechanics might feel familiar (“Book of” style).
✅ Free Spins with special expanding symbols. ❌ No progressive jackpot.
✅ Strong maximum win potential of 5,000x. ❌ Multiple RTP versions available; always check.
✅ Mobile-friendly and Ante Bet/Bonus Buy options available.

Suitable for: High-volatility slot enthusiasts, players who enjoy mythological themes, and those seeking rewarding free spins with expanding symbols.


  • Given the high volatility, it’s crucial to manage your bankroll effectively. Start with smaller bets to extend your gameplay and increase your chances of triggering the highly rewarding free spins.
  • Familiarize yourself with the expanding symbols mechanic in the free spins by playing the game in demo mode as a free slot machine first.
  • The high RTP suggests that longer gaming sessions might be more beneficial for seeing returns, aligning with the nature of a high-volatility casino game.

What is the RTP of River of Styx?

The RTP (Return to Player) of River of Styx is 96.50% in its highest setting, which is considered above average for an online slot.

Does River of Styx have a free spins feature?

Yes, River of Styx features a free spins bonus round with special expanding symbols, triggered by landing three or more Scatter symbols.

What is the maximum win in River of Styx?

The maximum potential win in River of Styx is 5,000 times your total stake.

Is River of Styx mobile-friendly?

Yes, River of Styx is fully optimized for mobile play, ensuring a seamless experience on smartphones and tablets across various operating systems like iOS and Android.

What is the volatility of River of Styx?

River of Styx is a high-volatility slot, meaning wins can be less frequent but potentially very large.

How do expanding symbols work in this game?

During free spins, a random symbol is chosen to become a special expanding symbol, which covers entire reels for bigger wins.


  • Book of Dead: The iconic “Book of” classic slot from Play’n GO, featuring expanding symbols in free spins.
  • Legacy of Dead: Another popular “Book of” style slot from Play’n GO, offering multiple expanding symbols during free spins.
  • John Hunter and the Book of Tut: A Pragmatic Play slot with a similar “Book of” mechanic and an adventure theme.
  • Gates of Olympus: A high-volatility Pragmatic Play slot with Scatter Pays and accumulating multipliers, known for its high payout potential.
  • Sword of Ares: A Pragmatic Play slot with a Greek mythology theme, offering tumbling wins and multiplier collections.