A Stockholm studio from 2012. Independent, in-house. Quirky themes and inventive features. More than 80 titles.

What does Slotsyn review?

We review Thunderkick slots and give each one a Slotsyn rating.

What is Serpentico Smash?

A 6×5 cluster crush with Eye Scatters, high volatility, a 5,000x cap, and 94.18% RTP. Open the review for the demo and where to play.

Thunderkick slots

Updated 15 Oct 2026 · By Daniel Hansen

Thunderkick is the Stockholm studio behind quirky themes and inventive features. Serpentico Smash is the first title reviewed here: 6×5 cluster crush, 5,000x.

They were founded in 2012 and run out of Stockholm. Independent, everything in-house. The catalogue is 80+ titles, including Esqueleto Explosivo, Pink Elephants, and the Midas Golden Touch series.

They are known for quirky themes, inventive features, quality, and a touch of madness. The games sit at licensed casinos worldwide.

The first Slotsyn title is Serpentico Smash, which landed 11 Sep 2026. It is a 6×5 cluster Crush with an Eye Scatter bonus, high volatility, a 5,000x cap, and 94.18% RTP. More Thunderkick reviews will land on this hub.

Founded: 2012
HQ: Stockholm, Sweden
Known for: Quirky themes · inventive features
RTP: 94.18% listed

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Reviewed Thunderkick slots

Greedy Pumpking

Thunderkick

RTP 94.15% · High vol · Max 10,000x

Bjorn

Thunderkick

Slotsyn rating 6.0 · RTP 94.22% · Very High vol · Max 5,000x

Serpentico Smash

Thunderkick

Slotsyn rating 6.2 · RTP 94.18% · High vol · Max 5,000x

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FAQ

Who is Thunderkick?: A Stockholm studio from 2012. Independent, in-house. Quirky themes and inventive features. More than 80 titles.
Where are they based?: Stockholm, Sweden.
What does Slotsyn review?: We review Thunderkick slots and give each one a Slotsyn rating.
What is Serpentico Smash?: A 6×5 cluster crush with Eye Scatters, high volatility, a 5,000x cap, and 94.18% RTP. Open the review for the demo and where to play.