All casinos featured on Bojoko are our partners with valid gambling licenses. Ad Disclosure
All casinos on Bojoko are our partners with valid gambling licenses. Ad Disclosure

Reef Run slot review

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

User rating:

- (0)

Tester rating:

2.5 (1)

Game information

Game supplier:Yggdrasil

Release date:10/2014



Max. win:bet x 20000

Mobile version:Yes


Bonus game or special game



Bonus symbols

Max. win


Sea & shore

Fairy tales & fantasy

Nature & animals



User ratings (0)

Game design:



Game sounds:

Mobile gaming:



Screenshot Screenshot Screenshot Screenshot
RTP (Return to player):
Max. win:
bet x 20000

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

Slot tester's review: Kati Saari

Join the Reef Run race and see who is the fastest creature of the deep blue sea. Bet on the winner and win extra prizes.

Reef Run is one of the first slots that the developer Yggdrasil ever made. It was released in 2014, while the company itself started in the previous year. I find it interesting to see the steps Yggdrasil has taken over the years, as they rose from nothing to one of the leading figures in the industry in about five years.

The first thing you’ll notice is that this particular slot looks old. A bit older than it actually is. Yggdrasil currently employs a lot of great artists, but they clearly weren’t around when Reef Run came out.

Unfortunately, this is not the only problem this slot has. The graphical design is something that shouldn’t be done today. This slot is built on racial and national stereotypes that simply are not acceptable any more.

Graphics and sound

Reef Run is a slot with an interesting theme, to say slightly. This is a slot that probably no developer would release nowadays. The game looks a bit older than it is, but that is not the issue here. The sea creatures are based on racial and national stereotypes.

A shrimp with slanted eyes and a Fu Manchu moustache, a Mexican styled crab with a bushy moustache and eyebrows and a Latina octopus with big lips and clam for a fan. These are just some of the things that this slot has that just don’t fly in this day and age.

As for the sounds, we get a mixed bag. The music is good, but the sound effects are horrible. Luckily, with the updated interface, we can turn off the sound effects and leave the music playing.

The music is an adventurous and oceanic song, which suits the theme perfectly. It is fun to listen and doesn’t immediately loop itself. It is long enough to give some variance.

When you start playing, I bet you can quickly tell why I had to mute the sound effects after the first minute. They are annoying, loud and they repeat constantly. I felt like I could punch the snail for the stupid sound it makes.

Symbols and wins

The slot features a surprising roster of symbols. There are only six sea-creatures as the regular symbols and one special clam in the game. I can’t remember when was the last time I saw a game with this few in total.

The clam is a scatter and will activate the Free Spin feature. Get at least three of them anywhere and you get to spin for free. The more clams you get, the more spins you will have available in the feature.

The pay structure is built in a way that you want to get more of any single symbol, rather than just the better symbol. Three of anything isn’t worth much, but even five of the worst is. The pufferfish is the most valuable symbol and a great example. With a 20 coin wager, three fishes will pay out 30 coins, four will pay 200 and five will give you a massive 1,000 coin prize.

The slot has a medium volatility but trying to get any good wins feels like a chore. I felt that during the regular game, I was just constantly losing and the little wins I got was just slowing it down. The Free Spin feature and the Bonus Game are where the big wins are, but even they can leave you empty-handed.

On a positive note, as the Free Spin feature is the big-ticket item, it activates fairly often. I didn’t have to wait for too long to get from one to the next.


  • Free Spins: Hit the clams and get up to 60 spins

The clams are the treasure chests of the deep sea. Find at least three of them and you activate the Free Spin feature. The clams are a scatter symbol, so you don’t even need to get them on a single payline. Find three and you get 10 spins, four will give you 20 spins and five award you with a whopping 60 free spins. You can even get extra spins during the free spins.

During the free spins, the symbols will level up with massive multipliers. After every winning combination, the winning symbol is given a better multiplier. First win will increase it to 5x, second to 10x and third to 20x.

  • Reef Run Bonus Game: Play with Golden Bet and get an extra game mode

The game has an extra betting option for 5 coins per round, the Golden Bet. It does absolutely nothing during the regular game but will activate the bonus game when you start getting to the Free Spin feature.

At the start of the free spins, you get to choose one symbol you think will win the Reef Run race. Whichever symbol wins you the most coins during the free spins is the winner. If you guessed correctly, you get a mystery prize. The minimum and the maximum for each symbol are shown next to them.

This is a fun bonus game. Will you go for a symbol that comes up often, but only pays a small amount, or will you go for broke with a valuable and rare symbol?

My experiences

I have played a lot of slots from Yggdrasil, but some of these older ones I didn’t get to play back in the day. It has been fun to go back and see what they were doing before they got famous. With this particular one, nothing of real value was missed.

Reef Run is a perfect example of how Yggdrasil needed a little time to get their head in the game. Only a year later they released Chibeasties and Holmes & The Stolen Stones, which were both proper hits.

But as for this one, I think we can just bury this slot in the sea. This is a slot that would not be released ever again. The stereotypical depictions are just not what we want today.

Although, credit where credit is due, the Reef Race bonus game is fun and I hope that Yggdrasil will use that idea elsewhere.

Overall rating:


Gameplay trailer

Play Reef Run for free

Browse casinos with Reef Run and other slots from Yggdrasil. Create an account and try the game for free before making a deposit.

Sloty review »

Number of games: 1300

1st deposit bonus: 100%/C$300 + 300 FS

Play here »

+18, new CA players only, be GambleAware | Full apply

BetVictor review »

Number of games: 600

1st deposit bonus: 100%/C$300

Play here »

+18, new CA players only, be GambleAware | Full terms apply

Bethard review »

Number of games: 800

1st deposit bonus: 100%/C$200 + 250 FS

Play here »

+18, new CA players only, be GambleAware | Full terms apply


Wins and bets

RTP (Return to Player):96.5%


Max. win:bet x 20000

Min. bet:C$0.2

Max. bet:C$125

Progressive jackpot:

Reels & playlines



Non-standard layout:

Max. lines:20

Min. lines:20

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 Reef Run in English, Finnish, Swedish, German and 11 other languages.

All supported languages:
English, Finnish, Swedish, German, French, Spanish, Italian, Russian, Czech, Polish, Norwegian, Romanian, Turkish, Maltese


Reef Run supports GBP, EUR, SEK, DKK and 9 other currencies.

All supported currencies:
GBP (£), EUR (€), SEK (kr), DKK (kr), USD ($), NZD ($), CAD (C$), AUD ($), ZAR (R), AMD (Դ), ARS ($), HKD ($)


Release date 10/2014
78th newest on Yggdrasil 1,813th newest on Bojoko
RTP 96.5% 0.65% > average
13th highest on Yggdrasil 467th highest on Bojoko
Win up to 20000 x your bet
15th highest on Yggdrasil 222nd highest on Bojoko
Paylines 20 0% < average
40th highest on Yggdrasil 941st highest on Bojoko
Min bet C$0.2 per spin
43rd lowest on Yggdrasil 1,044th lowest on Bojoko
Max bet C$125 per spin
12th highest on Yggdrasil 555th highest on Bojoko
Rated 0 by 0 members
2nd most rated on Yggdrasil 38th most rated on Bojoko
78 more slots listed by Yggdrasil

Similar slots

All Star Knockout Ultra Gamble RTP: 96.1% Max. lines: 20 Volatility: Low
Jokerizer RTP: 98% Max. lines: 10 Volatility: High
Tut's Twister RTP: 97.1% Max. lines: 25 Volatility: Medium

Slot tester's profile


Kati Saari

Kati Saari

The year was 2013 when I first came across online casinos. Around the same time, I also began my career as a content writer, specializing in online casinos and casino games.

It's been an awesome journey, seeing how online casinos have evolved since the early 2000s to what they are today!

During these years I particularly fell in love with online slot games. I'm continuously amazed by how they've advanced from simple, three-reel slots to beautifully crafted games - sometimes working without reels entirely.

My favourite games are usually made by NetEnt and Play'n GO. Though it's hard to name just one all-time-favourite, Gonzo's Quest was the one that "reeled" me in.

Latest reviews:
Reef Run cover

Game supplier:Yggdrasil

Release date:10/2014

RTP (Return to player):96.5%

Max. win:bet x 20000

Mobile version:Yes

User rating: 0
Tester rating: 2.5

User reviews

Sign in to review slots on Bojoko.

Say "yes" to the cookies. Learn more in our privacy policy.