Astronomical Slots

Would you like to visit the outer-space of slot games and get paid to do so?

Astronomical Slots is an online slot game powered by Microgaming. This historical game was first released back in 1999, and offers players an RTP of 95%. You could enjoy an astronomical fortune with Astronomical Slots and all of its features, this video slot comes with 5-reels and up to 40 paylines.

This online slot machine has been getting lots of attention recently and that’s why we decided to do this full Astronomical Slots Review in March 2023.

Use this slot review to find out if this game suits your preference- we found some interesting features about its bonus game and wild symbols.

Find the best online casinos, promos and more all on this page, to help you enjoy the best possible gaming experience.

Best Astronomical Slot Sites

From our research here is a list of the best Astronomical Slot Sites.

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About Astronomical Slot

Much like the unique quality of space, Astronomical Slot is a one of a kind game that has survived the test of time.

It was first released by Microgaming in 1999. And until now, it is still one of the most enjoyable slot games. This may be because it continually offers players a safe place to come back to with all the hustle and bustle of five-reel 3d slot machines. It is still well-loved by younger and older players alike.

So, if you want a space adventure like no other, without all the complicated flashing lights of modern slot games, it is time to go back to the classics with Astronomical Slot. New and old players alike will surely enjoy this game.

Astronomical Slot Graphics Design

Retro, space, and lights – this is the trademark look of Astronomical Slot. Unlike its counterparts with 3D effects and graphics, this slot machine is all about old school.

From its classic starry background to the flashy and colourful on-screen lights, Astronomical is all about retro.

It brings back what was forgotten in the modern era of slot games – simplicity and fun. After all, the most important aspect of playing slots is to win.

With Astronomical’s effortless gameplay design, you can take things slow and just focus on winning. No more complicated playlines and reels.

How to Play Astronomical Slot

This video slot game is easy to play, set the stake and spin the reels.

Buckle up, everyone! Take a moment to go over the basic rules of Astronomical before floating into the cosmos.

Staying true to its retro vibe, this slot machine only has three reels. To start spinning into outer space, you must first choose from one, two or three coins per spin. After selecting your bet, a portion of the slot machine will light to show the cash rewards you can get.

And just like any astronaut, you have your own space command bar. This command bar, found at the bottom of the screen, can be used to adjust your bet settings.

Once satisfied with your bet, you are ready for take-off. Just click on the spin button to start your intergalactic journey.

To speed up your journey to a bigger jackpot, you can go all-in with the bet max switch. But remember, Astronomical is a classic slot machine, thus it will put emphasis on the number of coins you bet per turn and your wager.

This may take a little bit of getting used as you may be used to modern slot games to but as they say, exploring space takes time.

Interactive Features

There are lots of features bonus rounds to a wild symbol. Get your hands on real money and big wins thanks to this slot game. Although there is no free spins feature, there’s plenty for you to enjoy on this video slot.

Rather than paylines, Astronomical Slot focuses on the individual symbol combinations in the paytable. You may not know it, but this is a classic trait of retro slot machines that players more freedom.

The lowest symbol value is that of the cherry blossom symbol and two other icons. This is followed by the three-cherry combination.

And of course, the highest valued icon is the symbol of space itself – the planet and the Astronomical logo. Don’t hesitate to take risks as space is never for the weak-hearted.

Astronomical Slot also added some exciting features in its gameplay. After all, what is outer space without a bit of wild adventure?

The Astronomical logo symbol is the wild symbol of the game. It can substitute any symbol in the reels, resulting in bigger wins. Play for the wild symbol and enjoy easy wins, the wild symbols can take the place of any symbol.

To add to its appeal, a combination with the Astronomical logo on it immediately results in a doubled cash value. And if you get a combination of two wilds, you have the value multiplied by four – now that’s truly an astronomical feature!

This game may be classic, but as you can see, you have plenty of chances to blast off straight to tremendously high cash prizes!

What Symbol Triggers Astronomical Slot Bonus Free Spins?

Astronomical Slot has no free spins feature but as the interactive features suggests, there’s a lot to love about this game.


As was mentioned earlier, Astronomical Slot does not focus on payline as it only has a single one, right at the centre. You can play one pence per payline, play for 40 paylines at 40p per stake.

This online slot game has an amazing gaming experience for all to enjoy, find wild symbols and work your magic as you aim to play for big real money wins.

It is very simple, so ultimately you can just focus on your astronomical journey to the biggest jackpot yet. No need for complications, just simple enjoyment.

What is the RTP Value for Astronomical Slots?

The RTP Value for Astronomical Slots is 95.07%.

And the added features, especially that of the wild card, tremendously increase your winnings.

Slot Volatility

This slot game has a medium variance that allows regular payouts and the chance to win big.

More on this Slot Game

Astronomical SlotsAttributes


Astronomical Slots


1 way to win


3 reel casino slot


Microgaming slots manufacturer

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Medium Variance Slots



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Bonus Features:

Wild Symbol, Scatter Symbol

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Similar Games

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James has almost a decade of experience in the iGaming Industry. Winning several awards including "UK Casino Affiliate of the Year" he uses his experience to research the UK market to source the best bingo welcome bonuses, highest casino slots real money payouts and free spins sign up offers.