The monster that is the most rewarding is the red horned beast which pays players 6x of their stake when they land five across a pay line. The wild can substitute for all symbols with the exception of the Orb and Vortex symbols to create winning combinations although the wild only appears on the middle three reels. Probably one of the best aspects of this slot is that it benefits from win both ways technology meaning that players can land wins from left to right and vice versa. Players need to keep their eyes peeled for the Vortex symbol as landing two on adjacent reels will see them morph into Vortex reels and the player is then awarded with three Vortex spins, this is the Vortex Reels feature. The reels in the Vortex Reels feature are five high as opposed to just three meaning that there are more ways players can win when they have each Vortex reel in play, plus these Vortex reels are complete with stacked wilds and stacked high valued symbols. Even better is that for every additional adjacent Vortex symbol gives an additional Vortex reel and two additional Vortex spins.
These then remain in place until all of the Vortex Spins have been played out, obviously the more Vortex reels in play the more potential players have to win. When players are in the Vortex Reels feature, they will see that the orb symbols can appear and when they do they enhance the Vortex Free Spins feature as this is activated before they run out of Vortex Spins. There are pink orbs and for each one the player collects one more wild will be added to the middle three reels in the free spins but these only land on the first and fifth Vortex reel. There are also blue orbs which reward players with an additional free spin in the Vortex Free Spin feature and these will only appear on the 2nd, 3rd and 4th Vortex Reels however, every time the Vortex opens players are automatically given five blue orbs making this the Orbs Collection feature.
Players who open all of the five Vortex reels will activate the Vortex Free Spins features after their remaining Vortex Spins have been played out. The feature is played on a 5x5 reel set and offers players 3,125 ways to land a win. The wild stacks that are on the third reel are increased by one for each pink orb collected whereas free spins are awarded for the blue ones. It is also possible for players to buy their way into the Vortex Free Spins feature, to do so players have to pay eighty times their stake, they then get to make choices which determine the number of free spins and wilds that they are awarded to play with, with the maximum being 20 free spins and ten high wild stacks.
There is no doubt that Dark Vortex has a huge amount of appeal, it offers excellent visuals and quality bonus features. The whole slot centres around the Vortex Spin feature which makes for an even more lucrative free spins particularly if the player has collected plenty of orbs. This medium to high variance slot which can award pay outs of x7,318 the stake on every free spin. All players now have to do is succumb to the evil forces and give Dark Vortex a spin!