by Red Tiger Gaming

The divisive 1 reel slot is back for another attempt to change the minds of all those who dismissed the idea previously! Some players love them while others can’t stand them. Astronaut won’t be offering up a load of features or anything particularly complex but what it does have is a simple concept with a massive 48,000x payout hiding out there in outer space. Intrigued? We thought you might be.

Slot information

RTP: 95.69%
Volatility: High
Max Payout: 48,000x stake
Reels: 1
Paylines: N/A
Jackpot: No
Min Bet: 0.20
Max Bet: 2.00
Theme: Space
Release Date: 15th Jun 2023

Our rating

“ Prepare for blast off to find that 48,000x max win ”

3.5 out of 5

Win potential

Play Astronaut

Jump straight into the action and play Astronaut now at the following fully licenced UK slot sites. These slot sites have been thoroughly audited and reviewed by the team here at Slot Gods to ensure they offer an exceptional user experience, are trustworthy, safe, secure, and boast the best selection of online slots in their portfolio including Astronaut...

Astronaut Screenshots

Astronaut Features

It’s hard to break this slot down into any kind of features as it doesn’t really have any. While that might sound a little vague, you’ll only really know what we mean by hitting that spin button. The whole game is, essentially a ‘gamble’ feature and it involves 3 types of symbol.

Green Gems

These stones are your friends and each time 1 lands on the only space on the 1x1 grid you get a chance to win. There are 19 available for each round and the chances of 1 stopping on the screen are shown as a % at the top of the reel.

After receiving 1 of these, you can gamble the lot, gamble half or walk away with your winnings. The more you gamble, the higher the chance of losing on the next spin but the wins also start to get bigger. It’s a little like playing High/Low with progressive prizes.

The tubes to the side of the reel show you what prizes you could land next and the final space is the max 48,000x win that you can pick up during the game.

Red Gems

These are the blockers that will stop you in your tracks. If 1 lands, it’s game over—unless you have a shield that can take the impact. There are 8 of these that could potentially land to ruin the expedition and the % is, again, shown at the top.


The shield acts as an extra life and will protect you from stray red gems. There is only 1 available with each game but the added benefit of these is that once they take an impact, they also increase the value of the remaining prizes and this is what boosts the max payout to 48,000x.

Astronaut - Green Gems

Green Gems

Each time one lands, you move along the prize trail. You get to gamble with all or half of your prize, or you can take the cash.

Astronaut - Red Gems

Red Gems

A red gem takes away any winnings during the sequence so far if you don’t have a shield. There are 8 in play for each sequence so pray they don’t turn up!

Astronaut - Shields


This is a literal lifesaver and will protect you from 1 red gem. They also increase the prizes and could help you get to the top 48,000x win.

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Astronaut Review

The best way to think of Astronaut is perhaps as a mixture of High/Low and a crash game. You get a lot more input than usual but you can only get the sequence going when you hit a green gem. This is the major downside to this slot as it’s possible to hit a run of red gems that present no option to win. Then again, it is a slot and we all kind of accept that eventuality before we play, right?


It’s a fairly familiar space theme with the reel sitting among the prize tube as the cosmos drifts slowly by. The symbols are suspended on the only reel and they bob away waiting for the next spin. The soundtrack kicks off with a kind of 90s ‘prodigy’ vibe before settling down into a calm groove. Nothing mind-blowing, but nice enough!

Game Play

If you aren’t quite sure what’s going on even after reading the rules and/or this review, the best thing to do is lower the stake down to the 20p minimum and let it get going for a while—you’ll soon figure it out.

The game’s 'help' section also has a guide to when it’s best to cash out or gamble, depending on where you are in the sequence. You can always take a screengrab and check that out before making your next move.

Win Potential

Despite the lack of features and other regular elements—reels, for example—Astronaut still gives you a fantastic opportunity to hit an enormous win of up to 48,000x. The volatility is high and the hit rate is very low, so your balance could take a bruising as the red gems arrive, but the upside is that wins can grow very large very quickly. The RTP is a little under 96%, which is about right.

Our Verdict

Love it or hate it, you can’t deny that the win potential is huge but for many fans it's about the journey as much as the destination and this may or may not be their proverbial cup of tea. You might hit the Astronaut spin button once and walk away, or you could be sat there for a while grinning with delight as this game’s simple concept captures your imagination. 

Paul Clare
Reviewed by Paul Clare Last updated on

Paul spent plenty of time in arcades up and down the UK discovering all of the best fruit machines and watching them grow into the incredible online slots we see today. He still loves the basic format but also has a soft spot for games with big bonus rounds that progress as you play. Immortal Romance is one of his favourite slots of all time.

Learn more about Paul here

Play Astronaut

Play Astronaut now at the following verified UK slots sites. These slot sites are fully licenced and have been thoroughly vetted and reviewed by us to ensure they offer a great user experience, are trustworthy, secure, and have a wide variety of the best online slots in their lobbies including Astronaut:-

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