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Champion of the Underworld

If you’re brave enough to return to the depths of the Earth, take your chance to spin the reels of Champion of the Underworld!

In this next instalment of Yggdrasil’s ‘of the Underworld’ series, Hades will expect you on his arena alongside four brand new monsters, where two of our coveted GEMs, GIGABLOX and Wild Fight, will be put into action.

As you spin the underground arena machine and obtain high paid symbols, some will transform into Wilds, increasing your victories.

You can play on any of your favourite devices!

Free Spins Feature

Upon landing at least 5 Free Spins symbols, a Free Spins session with Multipliers starts. The machine and game background changes, indicating special mode of the game.

Wild Fight feature triggers in each spin in Free Spins mode giving player even more winning possibilities, additionally increased by this mode special Multiplier.

Free Spins mode Multiplier is charged by each Wild symbol and can increase even to x25. This Multiplier is kept and charged during whole Free Spins mode.


In Free Spins, winning Wild Fights accumulates Multiplier Progress points - upon reaching a certain level, the Multiplier increases, boosting all player's wins in this session.

Up to x25 Multiplier can be reached!


Yggdrasil unique mechanics. In each spin two or more reels will connect each other to create at least one giga reel.

As a result player gets in each spin super-sized Gigablox symbols 2x2, 3x3 or even 4x4 large. This includes the Free Spins symbol!

Once the reels stop, all Gigablox symbols split into individual symbols giving player more winning possibilities.

Wild Fight

Another Yggdrasil mechanics designed to give a player more Wild symbols. From time to time, Wild Fight feature will launch and Hades will fight against each High symbol on the machine.

If he wins, the given symbol turns into a Wild symbol.

During Free Spins mode, every spin triggers a Wild Fight feature!