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Bally Wulff
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Fenni & Karu Slot Review
Venture into the shadows and explore a haunted cave full of ghosts in the Fenni & Karu slot machine. This five-reel slot features 10 fixed paylines and is based around a nudging wilds mechanic. When wild symbols land partially visible and contribute to a winning combination, they expand to fill the entire reel, transforming it into a full wild column. This spooky slot also offers a gamble option that gives you the chance to boost your winnings.
Game Info
Return to Player
96.16
Volatility
Medium
Provider
Bally Wulff
Autoplay
Bonus Buy
Bonus Rounds
Cascading Reels/Avalanche Feature
Cluster Pays
Expanding
Free Spins
Gamble
Jackpot Slots
Megaways
Mobile
Multiplier Symbols
Mystery
Scatter Symbols
Spreading
Stacked
Sticky
Number of Paylines
10
Layout
5-3
Min Bet
0.1
Max Bet
100
Release Date
3/10/2025
Last Update
12/11/2025
About Bally Wulff Game Provider
Bally Wulff is a German gaming provider specializing in innovative slot games featuring diverse themes, vibrant graphics, and immersive gameplay. Its offerings include classic and modern-style slots designed for land-based casinos, arcades, and online platforms, with a strong focus on the European market.
Other Games from Bally Wulff
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Ghoulish Ghosts and Spooky Spiders
The Fenni & Karu online slot comes from Bally Wulff, a company with a long-standing reputation in the gaming industry.
This game may be inspired by ghost stories, but Bally Wullff has created the visuals with a notable cartoon style, so it’s not as terrifying as you might think. The Fenni & Karu slot machine is set deep in a dark cave, and game symbols include ghosts, spiders and bats.
A Ladder to Big Wins
This game is played across five reels and three rows. It comes with an RTP of 96.16% and medium volatility. You can play the Fenni & Karu slot online with bets of between 10 and an incredible 90,000 coins.
The main feature in this game is the ladder wild symbol, which substitutes for all other symbols and can land partially visible on the second, third and fourth reels. When they form part of a winning combo, they expand to fill the reel. This turns the full column wild and can help you score additional wins.
The Fenni & Karu online slot also includes a Gamble feature that activates after any winning spin. The Card Gamble option can double your winnings if you correctly guess whether a card is red or black. The Ladder Gamble option gives you the chance to climb a ladder and collect increasingly bigger prizes.
Symbol
Three on a Payline
Four on a Payline
Five on a Payline
Fenni & Karu
2.5x
12.5x
50x
Spider
1x
2.5x
12.5x
Ghost
1x
2.5x
12.5x
Toadstool
1x
2.5x
12.5x
Bat
1x
2.5x
12.5x
A
0.5x
1x
5x
K
0.5x
1x
5x
Q
0.5x
1x
5x
J
0.5x
1x
5x
10
0.5x
1x
5x
Try out the Fortunes of the Dead slot machine and the Ooh Aah Dracula slot machine if you want to experience more spooky adventures!
Conclusion
Fenni & Karu is an exciting adventure slot with spooky symbols and some interesting slot features. While it’s missing standard features like free spins, the unique nudging wilds mechanic is definitely worth checking out. You can play Fenni & Karu for free here at VegasSlotsOnline. Make sure to explore our other free slots while you’re here.
Fenni & Karu Slot FAQs
Can I play the Fenni & Karu online slot for free?
Yes, you can play the Fenni & Karu online slot for free here at VegasSlotsOnline. The game is included in our collection of free slots, from the very best development studios.
Can I use real cash to play the Fenni & Karu online slot?
Of course. If you’re looking to use real cash while playing the Fenni & Karu online slot game, check out the list of recommended real money casinos at VegasSlotsOnline
Will the Fenni & Karu online slot work on my phone?
It certainly will. The Fenni & Karu online slot will work on your mobile, as well as on tablet devices. You can find more slots to play on your phone here at VegasSlotsOnline.
Who makes the Fenni & Karu online slot?
The Fenni & Karu online slot comes from Bally Wulff, one of the industry’s leading providers. We have more slots from this provider and many more here on the VegasSlotsOnline website.
Is the Fenni & Karu online slot safe to play?
Yes, the Fenni & Karu online slot game is completely safe to play. For extra protection when playing online slots, sign up with one of our recommended safe online casinos.