Thunderkick slots

What are Thunderkick slots?

Thunderkick is a Swedish slot developer founded in 2012 and headquartered in Stockholm. It operates through two licensed companies, Thunderkick AB and Thunderkick Malta Ltd, and holds two Gambling Commission accounts, 40165 and 41752, for Great Britain. Unlike many of the studios we profile, it has not been bought by a larger group: it is independent.

Its catalogue is small by modern standards, about 110 games on reference listings, and every one is an original idea. There are no film, TV, music or celebrity licences anywhere in the range.

Why Thunderkick makes only original games

Branded slots carry a licence fee to the rights holder and need the rights holder’s approval. Thunderkick has avoided that route entirely. The result is a catalogue with a recognisable art direction: hand-drawn characters, bold colour and a sense of humour, from Day of the Dead skeletons to a herd of pink elephants.

For a player, that has two practical effects. You won’t find a Thunderkick game because you searched for a film; you will find one because a casino features it or because you liked another of its titles. And because each game is its own idea, the help screen is the only reliable guide to how it plays. If you do want licensed games, our TV and film slots page covers studios that make them.

Esqueleto Explosivo vs Esqueleto Explosivo 2

The Esqueleto Explosivo games are Thunderkick’s signature series, featuring a band of skeleton musicians. Both use falling symbols with an exploding wild that clears the symbols around it, and a multiplier that doubles with each consecutive drop. The sequel kept the idea and retuned almost everything else.

The original is one of the gentler slots in any UK lobby: frequent small wins and a low ceiling. The sequel trades some of that steadiness for a ceiling more than seven times higher. Neither is better; they suit different budgets. Our guide on how slot sequels differ explains why studios retune maths like this.

Best-known Thunderkick slots and their figures

1429 Uncharted Seas is another of the studio’s best-known games and often appears on high-RTP lists; we don’t hold a verified figure for it, so check its help screen. The four games above cover the whole volatility range, low to high, within a 0.13-point RTP band.

Thunderkick’s maths habits in pounds

With RTPs between 96.0% and 96.13%, the long-run expected cost of £100 staked on any of these games is about £3.87 to £4.00. That makes volatility and the max win the real choice.

Take £20 at 10p a spin, 200 spins, on the original Esqueleto Explosivo. As a low-volatility game, it returns small wins often, so it is common to still have a good part of the £20 after 200 spins, and no single spin can pay more than its 700x cap, which is £70 at 10p. On Pink Elephants 2 at high volatility, the same £20 could end with nothing to show, or with a feature worth far more; the 10,000x cap is £1,000 at 10p. The house edge applies either way, and both are expected to cost money over time.

How Thunderkick reaches UK casinos

Thunderkick is a Powered By partner of Relax Gaming, meaning its games are distributed to casinos through Relax’s platform while Thunderkick keeps ownership and design control. Some lobbies list Thunderkick as its own provider; others place its games under Relax Gaming. If a Thunderkick filter isn’t showing, try the Relax filter or search by title.

The arrangement has no effect on how the games pay; the maths is Thunderkick’s, and each title is tested and certified before it goes live in Great Britain.

How to find Thunderkick slots in a lobby

1. Look for a Thunderkick option in the casino’s provider filter.
2. If there isn’t one, check under Relax Gaming or search for Esqueleto Explosivo or Pink Elephants 2.
3. Open the game and confirm the Thunderkick logo on the loading screen.
4. Read the help screen for the RTP, volatility and max win at that casino.
5. Play the age-verified demo first if you are unsure how the features behave.

UK rules that apply to Thunderkick slots

Thunderkick games in Great Britain follow the same rules as any slot: a maximum stake of £5 per spin for players aged 25 and over and £2 for those aged 18 to 24, at least 2.5 seconds per spin, no autoplay, turbo or slam-stop, no feature buy and no celebratory effects for returns below the stake. Demo play requires an age check first. Our UK slot game design rules guide explains each one.

Where to play Thunderkick slots in the UK

We don’t record which studios each partner casino stocks, so search the lobby for Thunderkick before you sign up. Offers with clear terms: PlayOJO gives 80 spins at 10p on Big Bass Bonanza after a £10 first deposit, with winnings paid in cash; Casumo gives a 50% bonus up to £100 on a £20+ first deposit, with 10x wagering in 7 days and a £5 maximum bet; Coral gives 100 spins at 10p after you deposit and bet £10 on slots, with no wagering on winnings. 18+, new customers, T&Cs apply.

18+. Gambling should be entertainment that costs money, not a way to make it. Set a deposit limit before you play: how to set limits. Free, confidential help: National Gambling Helpline 0808 8020 133.