Champion of the Underworld Slot – Battle Through 4,096 Ways to Win!

Dark fantasy themes and big wins await in the Champion of the Underworld Slot by Yggdrasil.
This slot has 4,096 ways to win, the Gigablox mechanic, Wild Fight battles, a multiplier of up to 25x, and a max win of up to 10,000x your bet. Want to see how it works? Below is a quick guide with everything you need to know.

Already want to play? We invite you to try Champion of the Underworld in demo mode, or fight for real wins at Tower.Bet online casino.

Game Theme, Design, and Sound Effects of Champion of the Underworld Slot

Champion of the Underworld Slot features a dark horror theme - Yggdrasil’s signature bold visual style. Expect intense monster battles, sinister symbols, flaming pits, and eerie shadows with every spin.

The sound design matches the visuals perfectly — heavy rock riffs mixed with horror-inspired sound effects build a tense, thrilling atmosphere.

Tip: For the best experience in the Champion of the Underworld Slot, wear headphones, turn up the volume, and enjoy the full horror vibe while spinning the reels.

Features and Ways to Win in Champion of the Underworld Slot

Bonus Features in Champion of the Underworld Slot

Gigablox Feature

Some symbols appear as giant blocks (2x2 to 4x4 in size). These oversized symbols still count as individual matching icons on the paylines. Even Free Spins symbols can show up as Gigablox.

Wild Fight

During the base game, Hades might start a Wild Fight on any spin. He battles high-paying symbols, and if he wins, those symbols turn into wilds for that round. Gigablox symbols can also be turned into wilds.
In Free Spins, this happens every spin — each new Wild adds +1 to the multiplier counter.

Free Spins

Get 5 or more Free Spins symbols to trigger the bonus round. Each extra Free Spin symbol you land during the bonus gives you +1 more spin.

Free Spins come with a multiplier meter:

Each time Hades turns a high symbol into a wild, the multiplier goes up.

Hitting milestones gives you extra spins and bigger multipliers:

• 9 wilds = 2x multiplier + 2 spins
• 11 wilds = 3x multiplier + 2 spins
• 13 wilds = 5x multiplier + 2 spins
• 15 wilds = 10x multiplier + 2 spins
• 17 wilds = 25x multiplier + 2 spins (max multiplier)

Gamble Feature

Every time before the FS round starts, you can gamble to win more spins (unless you already have the max of 20 spins). It’s a sword-picking minigame:

• Pick the golden sword → win the gamble
• Pick the broken one → lose the gamble

You can gamble for either more spins (risky) or fewer spins (safer).

Buy Bonus

• Buy 5 Free Spins for 90x your base bet
• Buy 20 Free Spins for 1000x your base bet

Reels and Winning Ways in Champion of the Underworld Slot

Champion of the Underworld Slot features a 6-reel, 4-row layout and offers 4,096 ways to win.

Symbols and Their Payouts in Champion of the Underworld Slot

Each payout below is calculated based on the maximum €100 bet in the Champion of the Underworld Slot.

High-Paying Symbols

• Red Minotaur: up to €200
• Medusa: up to €150
• Blue Undead: up to €100
• Green Demon Horse: up to €100

Low-Paying Symbols

(Heart, Purple Gem, Green Gem): up to €50
Wild Symbol: Golden Skull Wild. Pays €200 for 6 symbols. Substitutes for all regular symbols

Winning Combinations in Champion of the Underworld Slot

6x Red Minotaur Symbols Combo

Landing 6 Red Minotaur symbols is the highest-paying regular symbol in the Champion of the Underworld Slot

Free Spins Bonus Combo

Land at least 5 Free Spins symbols anywhere to trigger the Free Spins feature. Every extra symbol adds another spin.

Wild Fight Bonus Combo

In the base game, Hades can randomly fight high symbols, turning them into Wilds. If a Gigablox symbol is turned Wild during this, you can win big thanks to its size and value.

Autoplay and Turbo Mode Options in Champion of the Underworld Slot

How to Use Autoplay

Click the Auto Spin button on the left-side menu. Select a number of spins (from 10 to unlimited). Also, you can set Stop Conditions.
Once your settings are ready, click START to launch autoplay.
You can cancel it anytime by hitting the Stop or Pause button.

How to Use Turbo Mode

Open the Settings menu and look under the Visual section. Toggle the Spin Speed to switch from turtle (slow) to rabbit (fast).

Betting Options, RTP, and Volatility of Champion of the Underworld Slot

Betting Options

• Minimum Bet: €0.20 per spin
• Maximum Bet: €100 per spin

RTP (Return to Player)
Champion of the Underworld has a 96% RTP, which is in line with most modern video slots.

Max Multiplier
The highest possible win is 10,000x your bet.

Volatility
Champion of the Underworld is a very high volatility slot.

How to Play Champion of the Underworld Slot

Step 1: Choose Your Game Mode
Play Champion of the Underworld for real money, or try the demo mode first to explore the gameplay without any risk.

Step 2: Set Your Bet
Choose your wager from €0.20 to €100 per spin using the game’s bet controls.

Step 3: Spin the Reels
Spin the reels, land matching symbols, and win!

Tips Before You Play the Champion of the Underworld Slot

• Land 5 or more Free Spin symbols to unlock Free Spins with multipliers and wild upgrades.
• Use the Buy Bonus feature to instantly purchase Free Spins (5 spins for 90x your bet or 20 spins for 1000x).
• In Free Spins, Hades turns high-paying symbols into wilds, boosting your multiplier up to 25x.

Pros and Cons of Champion of the Underworld Slot

Pros

• Innovative gigablox mechanic (up to 4x4) that enhances winning potential by covering more reel positions.
• Progressive multipliers in Free Spins up to 25x.
• Buy Bonus Option, where players can purchase Free Games.
• Dark fantasy theme and heavy metal soundtrack.

Cons

• Complex Bonus Features.
• Variable RTP Versions.
• Multiple RTP settings (96%, 94%, 90.5%, 86%), so players should check the version offered by their casino. At our Tower.Bet casino the RTP is on the highest level - 96%.

Conclusion

Champion of the Underworld Slot is an absolute masterpiece in the dark slots category. It also features great mechanics like Gigablox symbols, Wild Fight battles, Free Spins with up to 25x multipliers, and a 10,000x max win.

Want to spin it? Play Champion of the Underworld at the Tower.Bet in demo or real money mode. Hit spin — and have a great gambling experience!