- Free spins with multipliers
- Multi-level bonus pays up to 350x
- Instant multiplier pays up to 250x
- Big bonus features don’t land often
- Below-average RTP of just 94.92 per cent
Contents
Introduction
Ahoy there me hearties! It is time to set sail with Captain Boom in this enjoyable and bonus-packed pirate themed slot.
This game is all about the multipliers, with prizes up to 350x your total bet on offer in the multi-level bonus. Add some instant wins and free spins and this mobile-optimised slot has plenty to attract players.
The cartoon-style graphics and well-thought-through features are fun to play, although the below-average RTP will put some high rollers off. That said, why not try some free practice spins on Captain Boom and other great Skywind free slots right here at Slots Temple?
Theme, graphics & soundtrack
Captain Boom invites you to take to the seven seas with the captain and his crew of royals. There are also three special symbols that trigger some great features, but the high volatility means you won’t see them very often.
The cartoon swagger of the visuals and the jaunty sea shanty soundtrack are more than enough to create an enjoyable sea-going experience, but we would have loved more pirate paraphernalia.

Captain Boom RTP and variance
Skywind has put together a high volatility slot with a 94.92 per cent RTP. This is below the industry average but is partly mitigated by a string of multiplier wins that can boost your total bet payout by up to 350x.
How to play Captain Boom
Skywind slots have a reputation for looking good and being easy to play, with Captain Boom no exception. The player interface is clearly laid out to the left and the right of the reels; however, if you are not familiar with slots, here is a quick guide to get you set up:
- Before you start playing Captain Boom, set up some timeouts and choose a session budget. When the fun stops or you reach your limit, stop spinning.
- Click the i to the top-left of the screen to access the paytable. This is where you will find all the information you need on paylines, bonus features, symbol pays and playing the game.
- Use the + and - buttons to adjust the total bet.
- Click the speedometer under the green spin button to speed up your spins.
- To play Captain Boom, either click the circular arrow to choose your autospin options or the big green spin button to play individual games and reassess your strategy.
Bet sizes & paytable wins
The bets on offer in Captain Boom should please most players, running from 0.02 to 200.00 coins per spin.
There are some decent prizes on offer here. These are the five-of-a-kind base game awards, which pay as multiples of your stake:
- Captain Boom wild pays 1,000x
- Captain Boom game logo pays 500x
- King and ace pay 200x
- Ten, jack and queen pay 100x
Captain Boom bonus features
This slot has three great bonus features that can really fill up your treasure chest. Here is how to unlock them and stash the cash:
- Cash Splash
Land three or more treasure chest symbols anywhere on the reels in the base game to trigger this instant win feature:
- Three symbols award a random instant win of between 2x and 25x your total bet.
- Four symbols award a random instant win of between 4x and 50x your total bet.
- Five symbols award a random instant win of between 20x and 250x your total bet.
- Bombs Away free games
Land three free games symbols on reels two, three and four to trigger 12 free games. During the free spins, any bonus, free games or scatter symbols are replaced with the bomb symbol, which multiplies your wins by 1x, 2x or 5x the total bet. Free games can’t be retriggered.
- Booty Bonus
Three or more skull island bonus symbols trigger the Booty Bonus. This is a multi-level bonus feature in which you sail the seven seas to Treasure Island, destroying galleons on the way. Click a galleon to reveal a prize or collect to end the game:
Stage 1: 2x to 10x your total bet
Stage 2: 3x to 12x your total bet
Stage 3: 4x to 15x your total bet
Stage 4: 15x to 25x your total bet
Stage 5: 17x to 30x your total bet
Stage 6: 40x to 55x your total bet
Stage 7: 70x your total bet
Trigger the feature with four bonus symbols and the prize is 2x as high.
Trigger the feature with five bonus symbols and the prize is 5x as high.
Captain Boom review: our verdict
Hit the reels right and Captain Boom will blast your payroll to kingdom come with a range of highly-entertaining features, including a seven-level bonus with the potential to win up to 350x your total bet. We didn’t get anywhere near this, but we found the Booty Bonus pretty rewarding even so.
Multipliers are the name of the game in Captain Boom, so you could win 12 free games with 5x multipliers or instant wins worth 250x your total bet. Beware the high volatility of this slot, however, as we found this made the big wins difficult to come by.
For more pirate-themed fun, try 4ThePlayer’s 123 Boom demo with its range of innovative features including the slide spin.
Disclaimer: Captain Boom trademark / license is owned by Skywind. This site is not endorsed by Skywind.
| Slot Name: | Captain Boom |
|---|---|
| Software: | Skywind |
| RTP: | 94.92% |
| Paylines: | 20 |
| Reels: | 5 |
| Min Bet (all lines covered): | £0.20 (GBP) |
| Max Bet: | £200 (GBP) |
| Top Win: | 1000 |
| Features: | Bonus Game, Wild Symbol, Scatter Symbol, Free Spins, 5 Reels |
| Themes: | Pirates |
| Last Update: | 04/03/2022 |
|
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Yes. Skywind have a UKGC license and are allowed to offer their games at UK licensed casinos. |
Captain Boom FAQs
What is the RTP of Captain Boom?
The RTP for Captain Boom is just 94.92 per cent.
What is the volatility of Captain Boom?
This is a high volatility slot with bigger wins that land less frequently.
What is the maximum win in Captain Boom?
The maximum win in this slot is 1,000x your stake.
Does Captain Boom have free spins?
Win 12 free games with up to a 5x multiplier in the Bombs Away free games feature.
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