Stellar Portals
Play at Mr Green »
Stellar Portals
Stellar Portals Mobile Slot Logo

Stellar Portals Slot Review

Mobile Video Slot by Snowborn Play Now at Mr Green » More Snowborn Casinos
Min/Max Bet:

How to play Stellar Portals mobile slot

The Stellar Portals slot has 4 different free spins bonuses you can catch and two types of wilds – this is one strange but wonderful cosmos.

Created by Snoborn exclusively for Microgaming, we weren’t sure what to expect from this Stellar Portals mobile slot, but what a wonderful surprise.

The background moves softly around making you feel like you are floating in the darkness of space, with just a slick of oil in the horizon.

There are 4 high paying symbols that look like stars in different states of going nova in red, yellow, green and purple, and finally low paying particles of different colours. It’s a pretty slot game theme that at least that bring into play any suits or card symbols.

Head to space to catch all the wilds you can

There are two wild symbols in the base game. You’ve got the wild that just shows up and replaces every other symbol on the reels, and then you have the sticky wilds that give you re-spins.

The re-spins continue for as long as you keep getting sticky wilds on the screen. And you know what? So many casino game providers would have left it to that and given you nothing else.

But not Snowborn and not this Stellar Portals slot. Instead, you have 4 different bonus symbols that can trigger 4 different bonus free spins, each with their own different characteristics.

How the Stellar Portals slot free spins work:

Depending on which of the bonus symbols you catch on screen, you may get:

  • 6 free spins with sticky wilds
  • 6 to 9 free spins with a 5x multiplier
  • 6 free spins with an increasing multiplier from 2x to 10x
  • 6 to 9 free spins with stacked wild symbols

All are good, but the multipliers are better – we’ve calculated the best win you can get as being 15,000x your bet. That’s competing with real money slot games such as The Grand Galore slot or even the Blinged review.

The problem, of course, is that as you don’t get to choose and these are random, you are more likely to catch sticky wilds or stacked wilds, but you know what? We’ve had some decent wins here that kept us playing, if not cashing out.

The point is that this Stellar Portals slot was fun to play, with lots of variety of feature that kept triggering, and plenty of hope for those chasing big wins.

You might like: Find slots by theme and pick from Adventure, Egyptian, Wild West and more.

Game Screenshots

Stellar Portals slot stats

Mobile Slot releasedSeptember 2020
Slot typeVideo Slot
Slot reels / paylines5 Reels / 20 Paylines
House edge / RTP3.96% / 96.04%
Slot volatilityMedium/High
Min/Max bet0.20 / 20
Max win300,000
Free spins4 Free Spins Bonuses / Multiple Features
Slot ThemesAliens & Space
Mr Green Mobile Casino Logo
An online and mobile slots site, Mr Green, provides you with a generous welcome bonus inviting you to play exclusive slots and jackpots and win daily Bonus Drop prizes.
Try Mr Green Mr Green Review
18+ Gamble Responsibly | T&Cs Apply

Bonus Features

Wild: The Wild is the colourful ball of yarn (that's what it looks like) can substitute for all symbols except the bonus.

Sticky Wilds: Land one sticky wild to get a re-spin with the wild sticky on screen. It can replace all other symbols on the screen and will remain sticky for as long as you keep getting more sticky wilds on every re-spin.

Multiplier Bonus: Land 3 Multiplier Bonus to trigger the bonus feature. This appears on reels 1, 3 and 4. This gives you 6 to 9 free spins with a multiplier of 5x base game bet.

Rising Multiplier Bonus: Land 3 rising multiplier bonus symbols to trigger this feature. It only appears on symbol 1, 3 and 4. You'll then get 6 free spins with a multiplier that increases with each spin. The multipliers are 2x, 3x, 4x, 5x, 8x, and 10x.

Stacked Wild Bonus: Land 3 stacked wild bonus symbols to trigger this feature. This appears on reels 1, 3 and 5. You'll get 6 to 9 free spins during which all reels features Stacked Wilds on the reels.

Sticky Wild Bonus: Land 3 Sticky Wild Bonus symbol to get this bonus. These symbol land on reels 1, 3 and 5 only. This Stellar Portals Bonus awards you 6 free spins with sticky wilds landing on the reel and staying sticky for the duration of the bonus.

Stellar Portals Review Conclusion

We had great fun playing on this Stellar Portals slot game, thanks to lots of different features, a great top win, and a wide betting range.

Snowborn studio, via Microgaming slots, have created something really compelling mostly because you get a lot of chances at catching big wins, even without the multipliers.

Granted, it can be a little frustrating that you don't get the 'good' bonuses very often, but you get a bonus often enough that you don't mind too much.

All in all, if you do come across this little mobile gem, it's well worth a spin or two.

Ready To Start Spinning?
Mr Green Mobile Casino Logo
Play at Mr Green »
Get 200 Book of Dead Free Spins + 100% Bonus T&Cs Apply

Play Stellar Portals Slot at one of our best slot sites

Review by Lucky Mobile Slots, last updated: December 28, 2020 - Rating 4

Back to Top

Ad Disclosure

Here at we are committed to providing you with unbiased slots reviews for free. In order to continue this we have affiliate links on our site from our trusted partners from which we may earn money at no extra cost to you. This helps us keep free for everyone to enjoy.