Thunder Crown

Last updated on September 1st, 2025

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T&Cs Apply

New customers only • Players can claim 275% Up To €2,500 + 80 Free Spins Welcome Bonus • The Welcome Bonus Package is only available for newly registered players • The minimum deposit required to claim the bonus is €20 • The 1st deposit bonus is 100% up to €1,000 + 50 free spins (Bonus code: REWARD1) • The 2nd deposit bonus is 100% up to €1,000 + 25 free spins (Bonus code: REWARD2) • The 3rd deposit bonus is 75% up to €500 + 5 free spins (Bonus code: REWARD3) • Wagering requirements: x35 for bonus money •

Responsible Gambling Index:

🔵 GREAT

Strengths
✅ Prevention of Underage Gambling
✅ Responsible Gambling Policy
✅ Access Account History
✅ Ethical and Responsible Marketing
✅ Deposit Limits
✅ Wagering Limits
✅ Session Limits
✅ Loss Limits
✅ Reality Check

Weaknesses
❌ Self-Assessment
❌ Budget Calculator

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T&Cs Apply

New customers only • Players can claim 220% Up To €5,350 + 100 Free Spins Welcome Bonus • The Welcome Bonus Package is only available for newly registered players • The minimum deposit required to claim the bonus is €20 • The 1st deposit bonus is 100% up to €650 + 100 free spins (Bonus code: FIRST) • The 2nd deposit bonus is 50% up to €1,000 (Bonus code: SECOND) • The 3rd deposit bonus is 40% up to €850 (Bonus code: THIRD)  • The 4th deposit bonus is 30% up to €850 (Bonus code: FOURTH) • Wagering requirements: 40x (bonus + free spins) •

Responsible Gambling Index:

🔵 GREAT

Strengths
✅ Prevention of Underage Gambling
✅ Responsible Gambling Policy
✅ Access Account History
✅ Ethical and Responsible Marketing
✅ Deposit Limits
✅ Wagering Limits
✅ Session Limits
✅ Loss Limits
✅ Reality Check

Weaknesses
❌ Self-Assessment
❌ Budget Calculator

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T&Cs Apply

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Responsible Gambling Index:

🟡 AVERAGE

Strengths
✅ Self-Exclusion
✅ Responsible Gambling Policy
✅ Prevention of Underage Gambling
✅ Budget Calculator
✅ Access Account History
✅ Ethical and Responsible Marketing

Weaknesses
❌ Reality Check
❌ Self-Assessment
❌ Loss Limits
❌ Deposit Limits
❌ Session Limits
❌ Wagering Limits

Thunder Crown Slot Review

Endorphina is once again electrifying the slot scene with the release of Thunder Crown. Building on the timeless appeal of classic fruit machines, this title injects a high-voltage surge of regal power and modern features into a beloved format. The result is a uniquely feature-packed online slot that promises a storm of majestic graphics, dynamic gameplay, and shocking win potential.

With a powerful Expanding Wild, Free Games with Guaranteed Wilds, and an electrifying Thunder Hold Bonus Game, this slot is designed for maximum excitement. Prepare to enter a kingdom where classic fruits and royal treasures collide under a stormy sky.

Advantages & Disadvantages

Theme & Design

Thunder Crown immediately captures the player’s attention with its masterful and brilliantly polished design. The game’s backdrop is a dynamic, stormy sky, filled with swirling dark clouds and flashing lightning, creating the perfect stage for the royal display of power. The overall aesthetic is elegant and premium, elevating the classic fruit theme to a regal status. The animations are sharp and impactful, especially when the expanding Crown Wild dominates the reels or when lightning strikes during winning combinations, adding to the game’s lively feel.

The symbols are a creative fusion of classic slot imagery and royal elements. The high-value symbols are represented by familiar icons like gleaming bells, lucky 7s, and juicy watermelons, but each has been given a polished, modern look. The lower-value symbols are the classic cherries, lemons, and oranges, all designed with crisp, high-definition graphics that pop against the dark reels. The soundtrack complements the visuals perfectly, with an intense, action-thriller-style tune that evokes a sense of drama and anticipation, punctuated by satisfying thunder-strike sound effects for wins and feature triggers.

Features

Kicking off the action on a 5-reel, 5-row grid with 50 paylines, Thunder Crown delivers a highly engaging, low-volatility experience, backed by a generous 96.05% RTP and a regal maximum win of 2,400x your stake.

Thunder Crown is loaded with high-impact features that seamlessly blend classic mechanics with modern bonus excitement, offering players multiple paths to royal riches.

• Expanding Wilds: The majestic Crown serves as the Wild symbol and appears on reels 2, 3, and 4. Whenever it lands, it expands vertically to cover the entire reel, substituting for all other symbols (except the Scatter and Token) to complete winning combinations and generate massive wins.
• Free Games with Guaranteed Wilds: Triggered by landing 3 or more Golden Star Scatter symbols, this feature awards up to 20 free spins. Its most powerful aspect is the guarantee of at least one Expanding Wild appearing on every single spin, dramatically increasing the win potential throughout the round. The feature can also be retriggered for even more chances at a royal payout.
• Thunder Hold Bonus Game: This is the game’s electrifying centerpiece. This hold-and-win style bonus round is triggered by landing Token symbols. Here, players collect Thunder Spheres with cash prize multipliers (up to 30x the bet) and aim to fill columns to win one of three fixed jackpots: the Min (50x), Mid (200x), or Max (1000x).
• Risk Game (Gamble Feature): For players who enjoy a classic thrill, the Risk Game offers a chance to double any win up to 10 times. Players must choose one of four face-down cards and beat the dealer’s card to multiply their prize, adding a layer of high-stakes suspense to every winning spin.

Final Thoughts

Thunder Crown is a truly exceptional offering from Endorphina, representing a perfect marriage of classic slot nostalgia and modern, feature-rich gameplay. Its low volatility and solid 96.05% RTP make for a smooth and highly engaging session, where wins are frequent and the bonus features provide a constant sense of excitement.

While the base game is enjoyable, the real electricity comes from the Free Games with Guaranteed Wilds and the suspenseful Thunder Hold Bonus Game, which holds the key to the game’s impressive 2,400x maximum win. Whether you’re a fan of timeless fruit machines or a player seeking innovative bonus rounds, Thunder Crown delivers a polished, thrilling, and royally rewarding experience that is not to be missed.

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