Creatures of the dark have opened the portal from hell to our world. This is a dark vortex, which brings scary things from hell to the Earth. Would they flood the planet and destroy humanity?

Find it out playing on the Dark Vortex online slot machine, released by Yggdrasil Gaming on the Halloween Eve 2018. The model has unusual gaming features and other interesting options, carefully described in the following review.

9 /10
0.10 EUR
Min bet
50 EUR
Max bet
Max payout
Number of reels
Number of lines

Play Dark Vortex

The Dark Vortex online video slot has five spinning reels. There are no active lines, as all combinations are formed by Win All Ways system. Originally, it is possible to make up to 243 different combinations, but this number grows up during the bonus options.

An amount of the bet per round is ten fold. Coin value varies from one cent to five euro (from ten cents to fifty euro per spin).

Icons line up in three rows at the screen. Selection of gaming options includes basic symbols, special elements, free spins of multiple types and advance bonus options.

Winning combinations are formed of three, four or five same elements, situated at neighbor reels. Combinations may begin from the first left reel, developing from left to right and in opposite direction, starting from the last reel.

Amounts of payoffs are calculated by the current coin value and special indexes from x2 to x60. In case of multiple combinations formed in result of one spin, all wins are summarized.

A gambling feature is not provided. Special symbols and prize features of the Dark Vortex are discussed below in the review by Casinoz.club.

Dark Vortex Symbols, Wild, Scatter

Basic symbols are five monsters and five colorful books. Same symbols may form vertical stacks at the reels.

Special symbols are following:

  • Scatter (portal gate) activates Vortex Reels. The feature begins when two such symbols show up at any neighbor reels.
  • Wild (a golden sign) appears during the Vortex Reels and Free Spins only at the three central reels. This symbol replaces other elements when necessary.
  • Pink Orbs (a pink sphere) drops out at the first and fifth Vortex Reels. It expands stacks of Wilds.
  • Blue Orbs (a blue sphere) is imaged at the second, third and fourth Vortex Reels. It brings more free spins.

Payoff multipliers are description of symbols can be found in the pay table.

Dark Vortex Bonus games

Let's discuss prize features of this slot machine:

  • Vortex Reels – Wilds appear at two active reels during three spins. Winning combinations are made more often and more high symbols show up at the screen during this feature. When extra Scatters drop out at neighbor reels, each of them adds two more spins. If you manage to turn all five columns into the Vortex Reels, free spins begin.
  • Free Spins – the game goes on the casino's expense. Combinations can be formed in 3125 ways. Wilds and high symbols form long stacks. Blue Orbs extend free spins.

In addition, you can buy prize spins. The price is eighty coins. As soon as you pay this fee, you would have to take part in two pre stages first:

  1. Wild stacks – pick a card to find out how long stacks of wilds are;
  2. Number of spins – pick a card to find out how many free spins you get.

Then free spins begin. Bonus options are demonstrated in our video review of the Dark Vortex at Casinoz.club.


Yggdrasil Gaming doesn't draw a progressive jackpot on the Dark Vortex video slot.

Dark Vortex Interface

You will see following elements at the control panel:

  • Ways – current number of possible combinations;
  • Coin Value – select coin value;
  • Cash Bet – an amount of the bet in credits;
  • Max Bet – play by maximal bet;
  • Win – an amount of the win per round;
  • Balance – state of the balance;
  • Buy Bonus – purchase a bonus feature.

Play buttons are situated at the center. You would have to set limits for automatic game.

A plus at the right opens the menu with following sections:

  • Pay table;
  • Sound parameters, speed, advance settings of automatic game and other parameters;
  • Help;
  • Sound off.

Screen resolution is 16:9. You can play the Dark Vortex in browser, not downloading the game.

The slot is available in over then twenty languages.

Mobile version

The Dark Vortex video slot is provided with a special version of interface, designed for comfortable gaming on censor screens of smartphones and tablets. You are welcome to play the game in mobile casinos on any devices powered by Android, iOS and Win Phone.


This is an impressive novelty with a plenty of interesting features.


  • Unique bonuses;
  • Attractive system of combinations;
  • Spectacular animation;
  • Stunning characters;
  • Convenient interface with diverse settings.


  • Pay table is low informative.

Levels of RTP and dispersion are above the average. Please be aware the payback index increases from 96.5% to 97% when you purchase the bonus feature. It means, activating this options as often as possible is reasonable.

Where to play Dark Vortex for free or real money?

You can test the Dark Vortex slot machine free at Casinoz.club or play for real money at best online casinos. The most popular websites are presented below.

Please write responses about the slot, rate the game and boast your wins in comments.

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Main info
Type of game
Video slots
Min bet
0.10 EUR
Max bet
50 EUR
Max multiplication
60 : 1
Is free test available
Mobile version
Issue date
October 24, 2018
Progressive jackpot
Reels number
Lines number
Gamble Feature
Bonus games
Free Spins, Vortex Reels