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Dwarf Mine slot review

Added by Yggdrasil. Information last updated: 11/05/2020

User rating:

- (0)

Tester rating:

3.5 (1)

Game information

Game supplier:Yggdrasil

Release date:03/2019



Max. win:bet x 12500

Mobile version:Yes

Play Dwarf Mine


Max. lines

Bonus symbols


Expanding reels



Adventure & action

Fairy tales & fantasy

Riches & luxury


User ratings (0)

Game design:



Game sounds:

Mobile gaming:


RTP (Return to player):
Max. win:
bet x 12500

Bojoko score (compared to other slots on Bojoko)
Yggdrasil score (compared to other slots of supplier)

Slot tester's review: Trystan Michielsen

Niagara Falls brings us the classic experience of playing a slot in an old-timey establishment, enjoying the moving reels and the contemporary music as we play for some big wins.

Developed by Yggdrasil and released in 2019, Niagara Falls is an attempt by the developer to bring to life the classic slot experience on the digital screen. The game is made to resemble a fruit machine as it used to exist. Although the theme of the slot is Niagara Falls it’s clearly meant to look like a physical slot you could find in a pub or gambling house.

Since it’s based on the classic slot it has the usual 5-reel, 3-row playing field. A slight deviation from the original fruit machines is the fact the game has 20 paylines, making it more likely that you’ll get a win.

The slot looks good even though it doesn’t do a lot new. The game is pretty static, offering no animations or special bonus games. The background shows a wallpapered wall with a couple of old lamps, while the slot is decorated with abstract falling water decorations. If you want to feel like you’re physically standing in front of a real-life fruit machine, Yggdrasil did its best to give you what you want!

I want to give a special mention to the sound design. Although it was subtle, the piano music that played fit the setting perfectly and conjured up images of an old school pianist playing a tune while people sat around talking and having a drink. Almost like it’s portrayed in Westerns.


As a classic fruit machine, Niagara Falls offers little variation in its symbols. The main additions are a special Niagara Falls symbol and the coin. From highest to lowest they are:

  • Bonus: 3 or more Bonus Symbols on the screen at the same time activates the Free Spins mode.
  • Wild: Substitutes all other symbols in the game except the Bonus and Coin symbol. Max. 10x your bet with five-of-a-kind on a winning payline.
  • Coin: Appears on reel 5, the coin falls from the top of the slot to the bottom.
  • Niagara Falls: Max. 10x your bet with five-of-a-kind on a winning payline.
  • Red 7: Max. 8x your bet with five-of-a-kind on a winning payline.
  • Blue 7: Max. 5x your bet with five-of-a-kind on a winning payline.
  • BAR: Max. 3x your bet with five-of-a-kind on a winning payline.
  • Bell: Max. 2.5x your bet with five-of-a-kind on a winning payline.
  • Grapes: Max. 2x your bet with five-of-a-kind on a winning payline.
  • Orange: Max. 1.5x your bet with five-of-a-kind on a winning payline.
  • Cherries: Max. 1x your bet with five-of-a-kind on a winning payline.


There aren’t a lot of features in Niagara Falls as it stays close to its roots but there are a few worth mentioning:

  • Wilds: Wilds substitute the other regular symbols in the game, but they don’t show up regularly. They need to be activated by the Coin Feature.
  • Coin: Occasionally a coin shows up on reel 5, which gets slotted into the game at the top and bounces down to the bottom of the slot, leaving a trail. Each reel has a special bonus at the bottom and if the coin hits one of these, that bonus is activated.
  • Free Spins: With 3 Bonus Symbols on the screen at the same time, the Free Spins mode is activated.
  • Cash Fall: Randomly during the base game the Cash Fall Bonus can be triggered, causing the symbols to fade away and coins to drop down into slots that either do nothing or multiply their value and add them to your win.

The Coin Feature is the most original aspect of this game and requires some extra explanation. Each reel randomly gets different bonuses at the bottom of its reel every spin. If there is a Coin on reel 5, the coin is slotted into the game at the top and it bounces organically down the reels. If it comes down onto a reel with a bonus at the bottom, that bonus is activated.

The possible bonuses are:

  • Wild: Wilds are added on the trail the Coin took.
  • Free Spins: Free Spins mode is triggered with 5 free spins.
  • Shake: 1 Shake Bonus is added to the Shake Counter.
  • Stacked Spin: Reels re-spin with stacked symbols.
  • Multiplier: The current win is multiplied by either 2x, 3x, 4x or 5x.

During free spins mode, the only bonuses shown at the bottom of the reels is Wild. If that shows up, the entire reel becomes a stacked Wild for the rest of the free spins mode. I thought that was an interesting idea but it did not trigger as often as I would have liked. In general, the free spins mode was relatively beneficial.

The Coin Feature and Cash Fall Feature are both quite a departure from the regular fruit machine gameplay, although I think Yggdrasil did a good job integrating it into the setting. The idea is that the player uses a physical coin to influence the game, but I thought it doesn’t really make sense if Yggdrasil wanted to keep things close to the classic slot experience.

In general, I found the features to be rather confusing. I had to dive into the paytable to find out what the different bonuses did. It also added a lot of randomness to the game since there is almost no way to influence what is happening.

In Conclusion

Niagara Falls is a strong concept that is, unfortunately, kind of wasted on a classic fruit machine. The idea of the waterfall as a theme invoked ideas that include cascading reels as they tumble off the falls. Instead, we get a static slot with very little visual going on. There are no animations save for the coin tumbling down the reels.

There was a lot of attention put into the presentation of the slot, bringing to life the physical fruit machine as much as possible on the computer screen. The music helped with that notion as well. Players that want to imagine themselves back in the pub playing a slot will definitely be able to do that with this game.

Niagara Falls has a High Volatility which is definitely noticeable. I found getting wins to be very difficult and it happened very rarely. Coupled with the low payout even with five-of-a-kind makes me wonder how the player is supposed to profit from this game. The Free Spins mode did help in getting bigger wins but since it was so rare to trigger it, it would often be too little too late.

It’s possible to choose a bet between C$0.20 and C$100 per spin and I would strongly suggest you use a lower bet for this game unless you have a lot of funds to play with. It’s likely you won’t see a single win for more than a dozen spins in a row if my experience is anything to go by.

I’m not really a fan of classic fruit machines so Niagara Falls didn’t click for me. I could still appreciate the time and effort they put into the design of the slot, but it did little to interest me when it came to the gameplay. Perhaps someone who is explicitly looking for the classic experience will get something more out of it!

Overall rating:


Gameplay trailer

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Wins and bets

RTP (Return to Player):96.8%


Max. win:bet x 12500

Min. bet:C$0.1

Max. bet:C$125

Progressive jackpot:

Reels & playlines



Non-standard layout:

Max. lines:1024

Min. lines:16807

Win both ways:

Other features


Expanding reels:

Stacked symbols:

Colossal symbols

Auto play:

Turbo play:

Quick play:

Virtual reality:

Bonus features

Bonus game:

Random bonus:

Progressive bonus:

Buy bonus:

Free spins:

Scatter symbols:

Bonus game symbols:


Standard wilds:

Sticky wilds:

Walking wilds:

Stacked wilds:

Random wilds:

Multiplier wilds:



Walking re-spins:

Sticky re-spins:

Cascading reels:

Sticky wins:


You can play Dwarf Mine in English, Finnish, Swedish, German and 19 other languages.

All supported languages:
English, Finnish, Swedish, German, French, Spanish, Italian, Russian, Czech, Dutch, Estonian, Greek, Hungarian, Polish, Norwegian, Portuguese, Romanian, Turkish, Chinese, Korean, Japanese, Thai


Dwarf Mine supports GBP, EUR, USD, CAD


Release date 03/2019
28th newest on Yggdrasil 590th newest on Bojoko
RTP 96.8% 0.95% > average
7th highest on Yggdrasil 195th highest on Bojoko
Win up to 12500 x your bet
23rd highest on Yggdrasil 284th highest on Bojoko
Paylines 1024 5020% > average
7th highest on Yggdrasil 88th highest on Bojoko
Min bet C$0.1 per spin
6th lowest on Yggdrasil 480th lowest on Bojoko
Max bet C$125 per spin
12th highest on Yggdrasil 554th highest on Bojoko
Rated 0 by 0 members
The most rated on Yggdrasil 34th most rated on Bojoko
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Slot tester's profile


Trystan Michielsen

Trystan Michielsen

I've been playing videoslots for almost 10 years and been a professional reviewer for over 5. I look at slots not just as a writer but also as a player, hoping to help others find their perfect slot.

I also enjoy movies, books and travel so any slots with those topics usually have my preference. But in general I'll play everything!

Latest reviews:
Dwarf Mine cover

Game supplier:Yggdrasil

Release date:03/2019

RTP (Return to player):96.8%

Max. win:bet x 12500

Mobile version:Yes

User rating: 0
Tester rating: 3.5

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