Stellar Portals Slot Review

Stellar Portals is a cosmic adventure that will throw you in outer space and ensure you an exciting trip. This journey is spiced with 4 bonus features, free spins, respins, multipliers and more. There is a diversity of wild and bonus symbols that trigger the bonus games and free spins. The game is unique and done with attention to details.


Stellar Portals Overview

Stellar Portals

Stellar Portals will make you a cosmic explorer thanks to Snowboard Games. The provider released the slot at the end of August 2020. This was done together with its partner Microgaming. You will have the chance to travel through the galactic. Play and wins from 4 bonus features, 4 types of wilds and free spins. The bonus games are many and all of them activate the free games with the respective booster. The visual and sound performance of the game is mind-blowing. Read more to learn what you can expect from the rounds. 

Available on:






Game Type:

Video Slot

Stellar Portals Details

  • Software:
  • Bonus Game:
  • Yes
  • Progressive:
  • No
  • Paylines:
  • 20
  • Wild Symbol:
  • Yes
  • Reels:
  • 5
  • Scatter Symbol:
  • No
  • Autoplay Option:
  • Yes
  • Multiplier:
  • Yes
  • Min Coins Size:
  • 0.20
  • Free Spins:
  • Yes
  • Max Coins Size:
  • 20.00
  • Jackpot:
  • 7,777x stake

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Stellar Portals Review

This is a 5-reeled slot with 3 rows and 20 pay-lines, which reward for the left to the right created combinations. You can play with wagers in the range of 0.20 and 20 credits on all devices. The volatility is high and the RTP of Stellar Portals is 96.04%. You can win up to 7,777 times your stake per spin in the game. There are a turbo mode and an auto spin option.

You can land several different wild and many bonus symbols. These are the Standard, Sticky and Stacked wild symbols. There are Multiplier Bonus, Rising Multiplier Bonus, Stacked Wild Bonus and Sticky Wild Bonus scatters. These all trigger the 4 free spins modes each with a different modifier. You will benefit from 2x to 10x multipliers, Stacked Wild and Sticky Wild symbols.

The Design

The game is set in outer space and you can see the cosmic landscape shifting on the transparent game area. The grid is framed with a lit line on top and bottom. The background shows complex shape structures. They look like mist with varying colours that float in space. The buttons are to the right and the menu – at the bottom left of the screen. On the reels, you can see balls of light in different shapes and colours. There are blazing, green, blue and flower-shaped vortex portals playing as symbols.

You can also land bonus symbols and wilds besides the low and high-paying ones. The images are colourful, precise and very authentic. The symbols make specific sounds when they land. The soundtrack is cosmic-related, relaxing and atmospheric. The visual and sound performance of the game is high-quality and very masterful. They guarantee fun, immersive and exciting space travel to all players.

Stellar Portals Gameplay

The pay-table includes 4 low-value, 4 premium symbols and plenty of bonus symbols and wilds. These are the normal wild, sticky wild and sticky wild bonus Symbol. You can get stacked wild bonus, rising multiplier bonus and the multiplier bonus symbols.

The low-value ones include a blue sphere and a green one shown in a side view. These pay equally – 0.40, 0.60 and 1.50x stake for 3, 4 and 5 on a line. The 3 yellow spheres return 0.40, 1 and 3 times the stake, the pink ones – 0.50, 1.25 and 3.75x stake for 3, 4 and 5 of a kind on a line.

The 4 bigger portals are the premium symbols. The blue one that resembles an eye returns 0.75, 2 and 6.25 times your stake. The green swirl grants wins of 1, 3 and 10 times the stake for 3, 4 and 5. The yellow fiery swirl is second in payout and returns 2, 6.25 and 25 times your stake. The red blazing swirl portal with the flower inside is the most valuable symbols. Landing 3, 4 and 5 of this symbol pays 2.50, 10 and 75 times your stake.

There is a standard wild symbol, which is very colourful and pays as much as the most rewarding one – 2.50, 10 and 75x stake. The wild substitutes for all missing symbols except for the bonus ones.

The Sticky Wild symbol wit the word on it is the symbol that activates the Sticky Respin feature. It has the same payout as the red flower sphere and the other wild. The Sticky Wild substitutes for all low-value and premium symbols. The rest of the bonus symbols trigger their respective bonus games. Learn more about them below.

Stellar Portals Features / Bonuses

The Multiplier Bonus symbol is the one with the ‘5X Multiplier Bonus’ inscription. This one appears on reels 1, 3 and 5 only. Landing 3 Multiplier Bonus symbols triggers the Multiplier Bonus feature. It gives you 6 to 9 Free Spins with a multiplier of 5x the base game bet. The number of free games you will win is randomly chosen. You cannot retrigger the free spins and can activate them from the base game only.

You can trigger the Sticky Wild Respin feature by landing at least 1 Sticky Wild symbol on any reel. This you can achieve in the base game. You get 1 respin during which you can land another Sticky Wild. Each occurrence of this gives you another respin. The respins are free and played at the triggering bet. They continue as long as you keep landing at least 1 Sticky Wild per respin and end once you fail to do so. The Sticky Wild has the value of the best paying symbol. It substitutes for all standard missing symbols.

You activate the Rising Multiplier Bonus feature. Do this by landing 3 Rising Multiplier Bonus symbols on reels 1, 3 and 5 where they appear. Then, you get 6 Free Spins at the triggering bet. They play the following way:

on the 1st free spin – 2x multiplier on all wins;

on the 2nd free spin – 3x multiplier on all wins;

on the 3rd free spin – 4x multiplier on all wins;

on the 4th free spin – 5x multiplier on all wins;

on the 5th free spin – 8x multiplier on all wins;

on the 6th free spin – 10x multiplier on all wins;

The free spins play automatically and you cannot retrigger them.

There is a Stacked Wild Bonus feature, which you activate with 3 Stacked Wild Bonus symbols landed on reels 1, 3 and 5. You will get a random number of free spins between 6 and 9. During them, all reels feature Stacked Wild symbols. You cannot retrigger the free spins and they play automatically.

The fourth and last extra in Stellar Portals is the Sticky Wild Bonus feature. If you get 3 Sticky Wild Bonus symbols, which appear on reels 1, 3 and 5 only, you activate it. Your prize will be 6 Free Spins. The Sticky Wild symbols you have landed remain on their positions once they have landed on a free spin. They stay there until the end of the feature. As with the rest of the free spins, they play automatically and use the triggering bet. You cannot retrigger them.

The Conclusion

Stellar Portals is a highly volatile slot with plenty of bonus modes and modifiers. They appear in all stages of the gameplay. There are multipliers, stacked, sticky and other wilds, free spins and more. You can win up to 7,777 times your stake or €155,540 in the best case. The theme and design of the game are very original and make it stand out. The idea was implemented the best possible way and you will feel this while spinning the reels. If you like cosmic travel slots, load Stellar Portals and get ready for a great journey.

Stellar Portals Theme

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Casino review by


Date: 23 March,2021

Hey there, I'm George, an old-school slots enthusiast and gambling expert. I've been passionate about slots, poker, and online casinos for years, and I love sharing my knowledge with others. Whether you're a seasoned player or just starting out, I'm here to help you with any gambling-related questions you may have. So, feel free to reach out to me anytime!