Eternal Duel (Hacksaw Gaming) – Slot Review
Eternal Duel by Hacksaw Gaming embraces a dark mythological fantasy theme, blending Greek gods, underworld creatures, and gladiatorial combat into a dramatic, battle-focused setting. The visual design merges ancient mythology with a gritty arena aesthetic, featuring figures such as Zeus, Hades, and Cerberus alongside relics, skull motifs, and supernatural energy effects.
At its core, the slot centres on rivalry and confrontation. VS symbols, expanding reels, and multiplier duels reinforce the concept of warriors competing for dominance, giving the experience a cinematic and competitive tone rather than a traditional treasure-hunting narrative. Lightning visuals, fiery underworld colour palettes, and a heavy, high-energy soundtrack further enhance the intense atmosphere, making the game feel closer to an action-fantasy experience than a conventional casino slot. Overall, Eternal Duel delivers a darker interpretation of mythological storytelling, combining divine conflict and arena combat with Hacksaw Gaming’s signature edgy visual style.
Eternal Duel is played on a 5×5 reel grid with 19 fixed pay lines. The slot features high volatility, an RTP of 96.42%, and a maximum win potential of 15,000x the stake. Bets range from £0.10 to £50.
Eternal Duel Symbols & Pay Table
The game features 18 symbols in total. Low-paying symbols are standard card ranks, while premium icons include goblets, skulls, Cerberus, Hades and Zeus. In addition to these are several special symbols, including Wilds, Dead symbols, Scatters, Relic and Cyclops symbols (both standard and Epic variants), and the VS symbol. Wilds substitute for all regular paying symbols, while Dead symbols are non-paying and purely thematic.
Eternal Duel Features & Mechanics
A central mechanic in Eternal Duel is the DuelReels feature. When a VS symbol lands and forms part of a winning combination, it expands to cover the entire reel, transforming it into a DuelReel. DuelReels act as full Wild reels and trigger a duel between two combatants, each assigned an additive multiplier. The multiplier belonging to the winning duelist applies to all wins passing through that reel. If multiple DuelReels are involved in the same win, their winning multipliers are combined before being applied. Possible additive multiplier values range from 2x up to 100x, and only one VS symbol can land per reel.
Free Spins are triggered through FS DuelReels. When three or more Free Spins Scatter symbols land simultaneously, each expands into an FS DuelReel. These reels duel using Free Spin values rather than multipliers, with the winning values added together to determine the total number of Free Spins awarded. FS DuelReels can also display upgrade markers, which can elevate the bonus to more powerful versions depending on the number of reels and upgrades collected.
The initial bonus, Hades Havoc, is triggered with a minimum of six Free Spins. During this feature, each reel is assigned a top and bottom Reel Multiplier, which start at random additive values. DuelReels draw their duelling multipliers directly from these Reel Multipliers. Relic and Cyclops symbols progressively increase or multiply the Reel Multipliers depending on where they land on the grid, with Epic variants affecting all reels simultaneously. Reel Multipliers can grow significantly, up to a maximum of 999x.
Upgrades within the bonus can lead to Zeus Fury, which enhances the mechanics by allowing Wild symbols to inherit Reel Multiplier values based on their landing position. These Wild multipliers apply directly to wins, and multiple Wild multipliers are added together before being applied. Further upgrades can unlock the hidden Eternal Destruction bonus.
Eternal Destruction retains all Zeus Fury mechanics while guaranteeing at least one DuelReel, one Wild, and one Relic or Cyclops symbol on every spin. Free Spin Scatter symbols do not appear in this mode, making it a relentless, high-intensity feature designed for maximum win potential.
Conclusion
Eternal Duel delivers a bold, high-volatility experience that leans heavily into Hacksaw Gaming’s signature duel mechanics and aggressive design style. The expanding DuelReels, stacked multipliers and evolving bonus upgrades create strong win potential, though the gameplay can feel intense and unforgiving during quieter sessions. Players who enjoy mythological themes mixed with fast-paced features and risk-focused mechanics will likely appreciate what it offers, but it’s best suited to those comfortable with high swings in balance. Be sure to try out this game on launch and check out our exclusive casino offers.