Finnegan’s Formula

Finnegan’s Formula is an Irish-themed video slot from Kalamba Games. It’s a highly volatile game with an average RTP of 95.95% and a total of five reels. It sounds like every other slot, right? Well, not exactly since the reality is vastly different. 

The number of rows and paylines changes throughout the game, or in this game, ways to win. They vary from 1,024 to as much as 7,776. But that’s just the tip of the iceberg. Stay with us to find out more.

Finnegan’s Formula Slot Review

Where Can I Play Finnegan’s Formula Slot?


The excitement of changing rows and ways to win is not the only thing that makes Finnegan’s Formula incredibly exciting and unique. The game also offers free spins, unique K-Cash and K-Raise features that have taken inspiration from some of the best Play’n Go titles.

The game comes from Kalamba Games, a Polish-based studio known for a few moderately successful games, including the popular Machina Megaways. This developer is one of the slot world’s smaller game providers, but it compensates by making games with many compelling bonus features, just like the ones in Finnegan’s Formula.

Moreover, the slot lets you accumulate prizes, and with the high volatility, it’s certainly ready to give you the results you dream of. If you’ve played games like Luck O’ the Irish Megaways, Fire in the Hole xBomb, and Rainbow Riches Cluster Magic, then you’ll be glad to try Finnegan’s Formula as well.


As we’ve stated, and as you can probably guess from the name, Finnegan’s Formula is an Irish-themed game. More specifically, it covers a significant portion of the famous Irish folklore characters and myths.

The setting is a beautiful dome-like building with lots of fauna and dimmed lights that flicker and move, bringing the whole ambient to life. You’ll also love the wonderfully designed symbols shaped like beer mugs, leprechaun’s hats, and of course, the shamrock.

You can win money in this game in a wide variety of ways, but nothing tops the max win that’s as high as 10,000 times your stake. With a max bet of £50, you can win up to £500,000.


Finnegan’s Formula RTP sits at 95.95%, but it gets as high as 97.03% when you buy the HyperBonus feature, activating the game’s free spins. The volatility is high, meaning you can hope for rare but high wins. For most of the game, you’ll be winning only a little, but a big win will very likely strike after a while.

As for the payouts, the game lets you win in as many as 7,776 ways, depending on how much the gridline has expanded. But bear in mind that only the highest matching combination pays, so you can’t get thousands of matching combos per spin. As for symbols, you get six low-paying and five high-paying symbols. The highest-paying one is the shamrock.

There is also the Wild symbol, but it only substitutes for other symbols and doesn’t pay anything. Also, it can’t substitute for the Bonus and K-Cash symbols.


The game works pretty much like all other slots, but it does offer a few features you’ll want to hear about. Let’s take a closer look.

Finnegan’s Formula K-Cash

The K-Cash feature is a fascinating one that can occur at any point in the base game. In essence, when the potion bottle or the so-called K-Cash symbol appears, it carries with it a specific cash amount that’s moved to the meter above the corresponding reel.

Finnegan’s Formula K-Praise

The K-Praise feature is directly related to the K-Cash one. The column will expand if the column height is less than six rows when the K-Cash symbol appears. Then, the K-Cash Reset symbol can occur at any moment and reset all the expanded rows to four rows while paying you the accumulated money from all the meters.

Finnegan’s Formula Free Spins

The free spins feature works like all others. If you get three or more bonus symbols, it will activate, and you’ll get three free spins. However, whenever the K-Cash symbol appears in this bonus round, you’ll get an additional free spin.

The above-mentioned K-Cash and K-Praise features will still work here, and they’ll likely pay a lot more than in the base game as the K-Cash symbols appear in the free spin round more often.

Finnegan’s Formula Hyperbonus

You can buy the HyperBonus feature at any moment within the base game. It effectively triggers the free spins bonus round with a total of three spins. And, of course, it releases the possibility to get more in the round itself.


In all honesty, Finnegan’s Formula is truly a compelling title. It might not come from a famous provider, but it’s pretty clear that the developers spend a lot of thought on it.

Plus, it does offer a lot of exciting things, including a massive max win, 7,776 ways to win, expanding reels, and some of the best and most interesting bonus features we’ve seen in a while.

Finnegan’s Formula Profile

Slot Varience - High



Release Date: 2021
Game Type: Video Slot
Reels: 5
Paylines: 1,024 - 7,776
Stake Range: 50.00

Jackpot - 10,000x


Finnegan's Formula Logo

K-Cash Feature, K-Praise Feature, Free Spins

3.5 Play now