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Not Enough Kittens Slot Review

Another insane game from Thunderkick, our favourite slot studio. This medium volatility slot has a 96.1 percent RTP, 50 free spins in the bonus round with Stacked Wilds, and 100x winnings in the basic game.

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Slot Game Profile
Release Date: 2017
Studio: Thunderkick
Game Type: Video Slot
RTP: 96.10%
Variance: Medium
Reels: 5
Paylines: 35
Stake Range: 0.10 - 100.00
Game Features: Wilds, Stacked Wilds, Free Spins, Double-Up Symbols

Not Enough Kittens by Thunderkick

Where To Play Not Enough Kittens Slot

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Thunderkick games are, to put it bluntly, insane! They appear to be vying with Yggdrail for the title of “world’s strangest online slot game concept” right now; perhaps that will be revealed at this year’s industry awards.

Overall, Thunderkick had a successful year in 2017, releasing some fantastic and innovative slot games, like the high-volatility Pink Elephants and Flame Busters. And in the run-up to Christmas, in early December 2017, they released Not Enough Kittens, a game in which a crazed professor watches as four kittens in boxes and several string balls fall about the reels.

Catarina (of course) Kettingur is our Professor friend, and her laboratory is located in the P.U.S.S. facility, where she is the Head of Science. It’s a crazy notion, but to recap, this is a 5-reel, 35-payline slot that you may play for $0.10 to $100 every spin.

There are several ways to win in the standard game, including up to 100x, however this is uncommon. The actual action takes place in the bonus round, where you may win up to 25 free spins, with an additional 25 free spins if you re-trigger. Plus, the wilds grow piled, and it’s a visually appealing game!

Not Enough Kittens is a slot machine that can be played for free or for real money on any device. You can play it right now at Slots Million, one of our recommended slot sites.


Pay carefully since there are some fascinating oddities for distinct symbols in this game. Blue, Purple, Pink, Orange, and Yellow are the low-value balls of string, with the latter paying out 2.2x for five on a payline.

The cats in boxes are the higher-paying symbols. A grey cat, a ginger tabby, a white cat, and a black cat are among them. The fascinating element is that if any cat in a box lands on a payline with a wild, the cats in the box are multiplied by two, and the reward is multiplied by two as well. So, at the most basic level, two cats in a box occurring 5 (10) times in a payline (i.e. with a wild) results in a 100x reward!

Except for the scatter, which is a letter F, the Wild Symbol always substitutes for any other symbol on a payline (for Free Spins).


There are some good prizes in the regular game, but if you want something extra, land three or more scatters on reels 1, 3, and 5 to activate the Free Spins bonus round. The following is how it works:

The number of Free Spins awarded is determined by the number of scatters that initiate the round: 3 scatters equals 10 spins, 4 scatters equals 15 spins, 5 scatters equals 20 spins, and 6 scatters equals 25 spins. The scatter symbol can sometimes appear as two symbols (2 ‘F’s), making it simpler to gather enough for some fantastic spins.

During the Free Spins phase, the wilds are all stacked, giving you plenty of chances to win big. You may also re-trigger the spins once for a total of 50. To do so, you’ll need to strike three or more scatters.


Not Enough Kittens is without a doubt one of the oddest slot themes we’ve seen, but hey, these days it’s all about being unique. Overall, the variation is moderate, so don’t expect a long string of little rewards. To make this one work for you, you’ll probably have to wait and pray for enough scatters to achieve a nice run in the bonus round. Free spins have a maximum win of 3,650x. It’s definitely worth a chance!


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