AskGamblers highlights Gunpowder as one of the better pirate-themed slots they've reviewed, praising its 'great design,' 'immersive experience,' and 'epic soundtrack.' The maximum win of 10,000x the stake and features like Sticky Wilds and free spins are repeatedly mentioned as strengths. Criticism centers on the slot's only average RTP, though this is acknowledged as typical for games with strong bonus rounds. Their editorial summary states, 'It is certainly one of the best, though, with a great design and the promise of both free spins and Sticky Wilds keeping things interesting.'

BigWinBoard finds Gunpowder decent but not groundbreaking, describing it as 'not the most sophisticated slot' but with bursts of excitement, especially when Sticky Wilds connect well. The review says, 'Funny, given all the firepower Gunpowder has, it didn't provoke a mood of uncontrollable danger,' and judges it as 'mediocre' compared to harder-hitting sticky wild slots. Players may find enjoyable moments when features align, but the reviewer notes, 'The Phantom Power was unpredictable,' making for a mixed but occasionally rewarding experience.

SlotCatalog emphasizes Gunpowder's solid feature set and potential, noting its 'Sticky Wilds Respins, Golden Bet, Free Spins, and much more!' The depiction is positive about the game’s 'pleasing naval animations' and thematic consistency, and they list the slot demo as well as a breakdown of key metrics like volatility and RTP. User reviews on SlotCatalog typically lean favorably towards the game's visual style and feature mix, though some note it is 'best for those who enjoy high volatility with big win potential.'

LuckyMobileSlots describes Gunpowder as an entertaining naval warfare slot, praising the 'excellent cartoon graphics' and 'wild symbol mechanics that can create chain reactions.' The review points out the high win potential and accessible gameplay, while also noting, 'You might go through dry spells, but those sticky wilds can turn the tide.' Player comments highlight the game's 'fun pirate theme' and how it 'can really pay in the bonus.'