Champion of the Underworld

In Yggdrasil's Champion of the Underworld, players are immersed in a dark underworld arena featuring a 6×4 reel grid and 4,096 ways to win. The atmosphere is enhanced by a dramatic fantasy-horror soundtrack, with Hades overseeing fierce battles against monstrous foes. A key feature of the game is the Gigablox mechanic, which introduces oversized symbols that can measure 2×2, 3×3, or 4×4. These large symbols count as multiple standard symbols, increasing the chances of forming winning combinations.

During the base game, a random Wild Fight feature occurs, where Hades battles all high-paying symbols present on the reels. Victories in these duels result in the transformation of those symbols into wilds, including parts of any Gigablox symbol. To activate the Free Spins mode, players need to land at least five scatter symbols, with each scatter granting one free spin. Every spin in this feature includes a Wild Fight, and as Hades triumphs in more battles, a multiplier counter tracks the number of symbols turned wild, progressively increasing the payout multiplier (×2, ×3, ×5, ×10, up to ×25), along with extra free spins awarded at each level.

Additionally, there is a Gamble option related to Free Spins, allowing players who haven't reached the maximum of 20 spins to risk their Free Spins in a mini-game for a chance to win more. For those in various jurisdictions, a Buy Bonus feature is also available, enabling players to purchase Free Spins directly, whether opting for a smaller bundle or the complete set.

You can play it for real money.