Dark Vortex Slot RTP and Review (Yggdrasil)

A high variance classic in the making, this spooky expanding-reel slot comes with a 96.5% RTP, wild stacks, and up to 3,125 ways to win with fully expanded reels. The production values, as with all Yggdrasil games, are first class, and there is a free spins round with potential wins of well over 5,000x.

Dark Vortex Slot Review


When it comes to creating beautiful-looking slot games there are few production houses we can think of who match up to the high standards set by Yggdrasil. Think of Vikings Go To Hell, Lucha Maniacs and the recent Hanzo’s Dojo. Yes, if slots were judged on looks alone, Yggdrasil would surely come top of the pile.

In terms of gameplay however, we haven’t always seen eye to eye with this team’s back catalogue – big wins are hard to come by, and innovation can sometimes seem a little confusing and complicated. Nonetheless we’re always excited at the prospect of hitting one of their new games, and Dark Vortex promises to be an absolute cracker!

Indeed, this game looks and sounds sensational, carries some really nice innovation that borrows from another top slots studio – Big Time Gaming’s expanding reels and buy the bonus feature are both present – and offers the incentive of a potential payout well in excess of 5,000x.

Dark Vortex Game Set Up

Dark Vortex begins life as a 243-ways-to-win slot on a five reel, three row set up. Any three or more identical symbols on adjacent reels form left to right or right to left will score a payout.

BUT, there’s more, because in this slot game a feature called Vortex Reels allows the reel set to expand to 5 deep, creating a total of 3,125 ways to win and boosting the potential payout massively.

The game is a high variance slot with 96.5% RTP – increased to 97% with the buy a bonus feature – and a stake range of $0.10 to $50.

Dark Vortex Game Symbols

There is a basic set of 10 symbols in this slot which fit with the eerie, horror theme – the highest paying symbols are a bunch of different colored monsters, the most valuable of which pays out at 6x for five on a payline.

There is also a Wild Symbol that substitutes for all others except the Vortex Scatter and the Orbs, which are all key to the main features of Dark Vortex Slot.

Dark Vortex Slot Features

Free Spins and Expanding Reels

There are various exciting moments in this game, all of them triggered by the all-important Vortex scatter symbols which work as follows:

2 Vortex scatters appearing on adjacent reels will trigger Vortex Reels where the relevant reels expand from 3 rows to 5 rows, creating more win ways and bigger win potential.

For each extra vortex scatter you’ll get an additional 2 free spins and of course, more vortex reels.

Watch out as well for the Orbs. These are only in play during Vortex Reels:

The Pink Orbs appear only on reels 1 and 5. When one lands, a further wild is added to reels 2 to 4.

The Blue Orbs only land on reels 2, 3 and 4. When they do, an additional free spin is added.

If you can expand all reels to full Vortex mode – 5×5 – then you have 3,125 ways to win and stacked wilds in the middle 3 reels that increase by 1 in height with every Pink Orb collected. This is where you can hit the really big wins.


We’re really liking the look of Dark Vortex slot from Yggdrasil. The graphics, animations and theme are absolutely first class and it’s all topped off with some excellent gameplay which makes things very exciting when you start landing Vortex Reels. This could turn out to be a classic if slot players can start landing some big wins. Here’s hoping that happens!


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