Going Underground Slot Review

Expert Rating: 4 out of 5
Review by Chris Taylor
Last update 27th July 2022
Review by Chris Taylor
Last update 27th July 2022

Head to London’s tube system and join historical British icons in the Going Underground slot by Pragmatic Play. With 5 reels and 20 paylines, there are 5 randomly-triggered base game spin features. They award transforming and colossal symbols, wilds, Shifting Stack Wilds and entry to the main bonus features. In the Bonus features, you are awarded 1 of 5 bonus features. 4 offer free spins and the End of the Line feature gives you respins with money prizes up to 2,500 x bet. With a 96.51% RTP rate and 5,000 x bet max wins, find out more in our Going Underground review.

Going Underground Max Win
5,000 x bet
Pragmatic Play
Type of Slot
Video Slot
Historical London
Stakes Range
20p to £100
Bonus Features
Yes (10)
Free Spins/Multiplier
Max Win
5,000 x
High (5/5)

Going Underground Slot RTP, Details & Wager Limits

Reels/Paylines: 5 reels + 20 paylines

Stakes Range: 20p to £100 per spin

RTP: 96.51%

Max Win: 5,000 x bet per spin

The Going Underground slot is played on 5 reels, 3 rows and 20 fixed paylines. 3 or more matching symbols need to appear from left to right, starting on the leftmost reel, on selected paylines.

The bet options range from 20p to £100 per spin. Like with other Pragmatic Play slots, there are plus and minus buttons either side of the Spin button. You can change the bet per payline and the coin value to get your achieved stake. Outside the UK, there’s an Autoplay option (up to 1,000 autospins) and Quick Spin mode for quicker spins.

The Going Underground RTP is 96.51% which is much higher than the 96% slots average. There are 95.58% and 94.5% RTP versions so best check at your chosen UK online casino. The volatility is very high (5/5).

In terms of payouts, the most you can win is 5,000 x your total bet. This will come in the End of the Line feature where money symbols can be worth up to 2,500 x bet.

Theme – head to London with historical characters

Theme: Historical London

High Value Symbol: Henry the 8th

Compatibility: Mobile, Tablet, Desktop


With a historical London theme, the Going Underground slot is set in the London Underground. It was the world’s first underground passenger railway which opened in 1863. With over 5 million passenger journeys per day, you are taken on a historical trip to well-known Tube stations with iconic British historical characters.

The setting is a generic Tube station but has a historical feel. The soundtrack is upbeat and has a British vibe. Quintessentially catering to British players, it might have the same appeal as Punk Rocker and Punk Toilet from Nolimit City.

On the reels you will see A, K, Q and J royals and 5 characters. They include Isaac Newton, Florence Nightingale, William Shakespeare, Winston Churchill and Henry the 8th. The Henry the 8th symbol is the best paying with 3, 4 or 5 awarding 2, 5 or 25 x your total bet.

The Newspaper is the wild symbol and substitutes for all symbols except the Train Bonus symbol. Appearing on all 5 reels, 3, 4 or 5 pays 2, 5 or 25 x bet (like Henry the 8th). Other symbols include the Tunnel Mystery, Shifting Stack, 5 character Money symbols, Extra Life, Prize Boost, Expand and Multiplier.

Symbol Payouts/Info
going-underground-slot-j-symbolJ 3, 4 or 5 = 0.2, 0.5 or 2.5 x bet
going-underground-slot-q-symbolQ 3, 4 or 5 = 0.2, 0.5 or 3 x bet
going-underground-slot-k-symbolK 3, 4 or 5 = 0.3, 1 or 4 x bet
going-underground-slot-a-symbolA 3, 4 or 5 = 0.4, 2 or 5 x bet
going-underground-slot-isaac-newton-symbolIsaac Newton 3, 4 or 5 = 0.5, 3 or 10 x bet
going-underground-slot-florence-nightingale-symbolFlorence Nightingale 3, 4 or 5 = 0.5, 3 or 10 x bet
going-underground-slot-william-shakespeare-symbolWilliam Shakespeare 3, 4 or 5 = 1, 4 or 12.5 x bet
going-underground-slot-winston-churchill-symbolWinston Churchill 3, 4 or 5 = 1, 4 or 12.5 x bet
going-underground-slot-henry-the-8th-symbolHenry the 8th 3, 4 or 5 = 2, 5 or 25 x bet
going-underground-slot-newspaper-wild-symbolNewspaper Wild Substitutes for all symbols above + pays up to 25 x bet
going-underground-slot-train-bonus-symbolTrain Bonus 3+ triggers Bonus features

Going Underground Mobile


Developed using HTML5 technology, Going Underground can be played on mobile, tablet, laptop and/or PC devices. The 5×3 setup is perfect for mobile play including devices using iOS, Android and/or Windows.

Going Underground Bonus Features

The Going Underground slot comes with 10 bonus features. There are 5 random base game features giving you transforming symbols, colossal symbols, wilds, Shifting Stack Wilds and Bonus feature entry. Then you have 5 Bonus features with 4 of them offering free spins. The End of the Line feature is a respins game where the bigger prizes can be won.

Random Spin features


On any base game spin, 1 of the following 5 Random Spin features can trigger randomly:

Feature Description
Tunnel Vision Tunnel Mystery symbols hit randomly on the screen which then transform into the same random paying symbol
The Big Smoke One 3×3 colossal paying symbol or Bonus symbol is added on reels 1, 2, 3 or 4
Wild Strike Newspaper Wild symbols are randomly added to the reels
Shifting Stack Shifting Stack Wild symbols are added to the reel strips. All the new wilds are moved fully into view to cover all positions on that reel. These come with a random multiplier of 2x or 3x
Bonus Blitz This will trigger the Bonus features

Bonus features


The Bonus features are played when 3 or more Train Bonus symbols land anywhere on the reels. It can also trigger the End of the Line feature directly. If you get the Bonus features, 1 of 5 possible features is chosen randomly.

There is a Feature Gamble where you can choose to play the awarded feature or gamble to get a higher value feature. If you lose your gamble, you’ll win a prize between 4 and 24 x your total bet and revert back to the base game. With no retriggers available, there are 5 bonus features to be won:

The Pentonville feature awards 5 free spins. Winning symbols form a cluster with the other symbols respinning. The respins continue if you continue to add symbols to the cluster.

The Kings Cross feature gives you 5 free spins. You’ll notice spots on the middle reels are marked in a cross. When a wild lands in a marked spot, all symbols in the other marked spots become wild.

The Buckingham Palace feature awards 8 free spins. Fully stacked wilds appear on the reel strips. If it lands outside the reel positions, it moves so it covers all positions on the reels. Character symbols also transform into the highest paying one.

The Canary Wharf feature gives you 8 free spins. With a Collect symbol present on the reels, character symbols can display a cash prize up to 50 x bet. If the Collect symbol lands on the same free as the character symbols, the cash prizes are collected and won.

End of the Line feature

Finally you have the End of the Line feature. This Hold & Respin game sees you begin with 3 respins and an empty grid. Only special symbols appear which reset the number of respins back to 3. Here’s what special symbols can appear:

Money Character symbols contain a random prize up to 2,500 x bet. These lock in position
Extra Life Land 3 of them to win 1 more life that reverts your respins tally to 3 if it reaches 0
Prize Boost Every 3 collected will increase the value of all Money symbols to the next value
Expand Collect 3 to add 1 more row of empty positions (grid can reach 5×5 in size)
Multiplier Every 3 collected sees a multiplier of 2x, 3x and finally 5x awarded to your total win

The feature continues until no more respins are left or you cover the whole grid with Money symbols. If will also end if you win the maximum 5,000 x bet prize.

Going Underground Review Summary – head to London in this feature-packed adventure

The Going Underground slot will be appealing if you’re a British player with an interest in history. With plenty of bonus features, it seems like Pragmatic Play has taken it’s inspiration from Blueprint Gaming. The Goonies slot offers 12 bonus features. This is because they are random base game features and a multitude of triggered features.

However, the Random Spin features come along pretty often with the Shifting Stack feature the most lucrative, especially if they come with a 3x multiplier. The 4 free spins features have their own modifier which is good. I quite like The Canary Wharf feature due to the character money prizes.

Going Underground is all about the End of the Line feature. This classic respin game is about landing enough Money symbols, especially as some of them are worth up to 2,500 x bet. The Multiplier symbol can give you a 5x boost to your winnings which helps. That said, the 5,000 x bet max prize limits the feature’s potential. On the other hand, The Goonies offers 500 x bet top payouts which is 10 times lower than Going Underground.

If you want variety, a high RTP rate (96.51%) and decent max win potential, Going Underground is well worth playing. The design is also very good and different from other slots.

If respins are appealing, the likes of the Fire in the Hole (Nolimit City), Money Train 2 (Relax Gaming) and Dead Rider’s Trail (Relax Gaming) are better slots with much bigger win potential.

  • 5,000 x bet wins
  • 10 bonus features in total
  • Unique theme/concept
  • Hard to trigger the End of the Line feature
  • High volatility

Going Underground FAQs

What is the Going Underground RTP?

The Going Underground RTP rate is 96.51% which is higher than the 96% slots average. The variance/volatility is very high (5/5).

What is the Going Underground max win?

The most you can win is 5,000 x your total bet. This can be achieved in the End of the Line feature where Money symbols are worth up to 2,500 x bet. There are also multipliers up to 5x that can be applied to your total win.

Are there any Going Underground free spins?

Yes, there are 4 free spins features. Randomly awarded, you head to Pentonville, Kings Cross, Bucking Palace or Canary Wharf to give you clusters with respins, marked spots turning wild, stacked wilds, symbol transformations and cash prizes.

Is there a Going Underground demo?

Yes, the Going Underground demo can be played here at Online-Slot.co.uk. Head to London’s tube system and join historical British icons on mobile, laptop, PC and/or tablet devices.