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Elk Studios
RTP 96.3%
Play Elk Studios Slots
Reels 5
Paylines 243
Min bet size
Max bet size
RTP 96.5
Wild symbols YES
Free spins YES
Bonus YES

Kaiju Slot Review

Released: February 2018

The Kaiju game can be found at casinos offering Elk Studios software. Elk Studios are a small but quickly growing casino software developer primarily focusing on the mobile market. At the present time they only offer slots games. Players should be aware that this software provider includes ‘betting strategies’ as an automated feature. These should be avoided. They offer no mathematical gain to the player and increase the risk of large losses in comparison to your bankroll. As a standard Elk Studios do publish the RTP/House Edge information for their slots games within their game paytable. As such we can say that the House Edge of Kaiju is 3.7%.

In the distant future the Kaiju terrorise humanity and only Agent HA-42 can save us.

Kaiju is a 5 reel game that does not use standard paylines. Instead any 3 or more matching symbols in any positions on adjacent reels starting from the left side of the reels constitutes a win. This is equivalent to 243 standard paylines.

In the base game there is no Wild symbol when playing Kaiju. However, if you receive 3 matching symbols in a diagonal line anywhere on the reels, a Wild symbol will be added above the reels on the final symbol and will be counted into winning combinations for the spin.

There is only one bonus feature when playing Kaiju and it is triggered when you receive the ‘HA-42’ bonus symbol anywhere on reels 2, 3 and 4. When this happens you will be awarded 7 free spins. At the start of the free spins one of three Kaiju patterns will be randomly selected and the letters will be populated above the reels in rows 4, 5 and 6. During the free spins vertically connected matching symbols will add an additional Wild symbol above the last symbol in the chain. Each time this happens you will receive an additional free spin. This Wild position is then accessible for the remainder of the free spins. If you expand a reel enough to have a Wild symbol over one of the letters making up the word Kaiju it will turn all symbols making up the vertical connection into Wild symbols for that spin. With all positions expanded the game offers a total of 7776 possible paylines.


Bonus feature and House Edge wise Kaiju is a really good game. The House Edge isn’t the lowest we’ve seen, but certainly isn’t off putting. The game features are very free spins orientated, but the expanding reels and the unique way in which they are triggered is unquestionably exciting. However this game has “Advanced” betting strategies build into it that we’re just not comfortable with. The word ‘advanced’ suggest better and far from being better, these strategies offer the player no improvement over flat betting. In fact by betting more, mathematically the player will lose more in the long run. This is a really poor practice. We’d be highly critical of any website advocating these types of bogus betting strategies. A game developer doing this is even more problematic. Without this feature this game would naturally rate significantly higher.

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