Boom Pirates delivers a pirate-themed adventure with expanded reels and dynamic feature triggers that shift outcomes mid-spin. The visual world mixes palm‑tree islands, wooden towns and treasure chests against a blue sea, feeling upbeat and swashbuckling.
Play Boom Pirates Microgaming Free Demo
This free demo provides no real money play and requires no registration or download. You can spin the reels instantly in the embedded iframe without any account creation.
Boom Pirates key facts
RTP: 96.19%
Volatility: High
Bet range: 0.20 - 75
Max payout: 285,000
Grid: 9 reels, 6 rows, 10,077,696 lines
Release year: 2019
Boom Pirates theme and atmosphere
The game visualizes the peak of the pirate era with islands topped by palm trees, a small wooden town and scattered treasure chests. A galleon flies a skull‑and‑crossbones flag as it sails the deep blue sea, evoking raids on shipping lanes and Caribbean settlements. The mood is playful, adventurous, swashbuckling and occasionally ruthless, featuring a redhead captain.
Boom Pirates features explained
Free Spins: Triggered when players match the special scatter symbols (YO and HO) on reels 1, 3 and 5, awarding 10 free spins. The bonus round can retrigger up to 5 extra free spins if three scatters appear before the round ends.
Scatter Symbol: The YO and HO scatters act as trigger symbols for the free spins round. They do not need to be adjacent and appear anywhere on the active payline.
Stacked Symbols: These symbols appear in stacked formations on the reels, increasing the visual density of matching symbols during base gameplay.
Mary's Attack: On any non‑winning spin, Mary swings into the reels and changes symbol values to create a win for that spin.
Boom Pirates feature: Expands the grid to a 6x9 format using Wonderways technology. This marks the maiden voyage of the provider's expanded‑reel system.
How to play Boom Pirates
Wins are formed across the 10077696 paylines on the 9‑reel, 6‑row grid. Matching symbols must appear on adjacent reels from left to right to count as a win, with at least one symbol on every active payline segment. Players set their bet within the 0.20‑75 range before spinning. The demo uses the same bet sizing interface as real play.
Where to play Boom Pirates demo
The free demo shows the same RTP of 96.19% and High volatility you would experience in real‑money play. Your decision should focus on choosing a licensed casino you trust rather than chasing a specific promotion. The casino list below is automatically geo‑matched to your own region.
Verdict: Who should play Boom Pirates?
Boom Pirates fits players who enjoy High volatility and are looking for occasional surprise wins from features like Mary's Attack. The 96.19% RTP places it in the high‑RTP tier, while the expanded 6x9 grid and clear scatter triggers (YO and HO) provide structured bonus opportunities. Try the free demo today to see if the pirate adventure matches your play style.
The slot's strongest points are the consistent high RTP, the ability for Mary's Attack to turn a non‑winning spin into a win, and the clear scatter‑trigger system for free spins. The High volatility means wins can be spaced out, so it suits players comfortable with longer dry spells.
Play the Boom Pirates free demo now-no registration, no download required. Explore other free slot games on our catalog to find your next favorite.
- High RTP of 96.19%
- Expanded 6x9 grid offers more win possibilities
- Mary's Attack adds surprise wins on non‑winning spins
- Scatter symbols are clearly defined (YO and HO)
- Volatility is High, leading to longer dry spells between wins
- Bet range starts at 0.20, which may feel low for players used to higher minimums
Frequently asked questions
How do free spins trigger in Boom Pirates?
Free spins are triggered by matching the YO and HO scatter symbols on reels 1, 3 and 5 simultaneously. This awards 10 free spins, which can retrigger up to 5 extra free spins if three scatters appear before the bonus round ends.
What does Mary's Attack do?
On any non‑winning spin, Mary swings into the reels and changes symbol values to create a win for that spin, potentially turning a losing outcome into a winning one.
Is there a buy‑free‑spins option in the demo?
No. The demo does not include a bonus‑buy feature. Players receive free spins only through scatter matches as described.
What grid size is used?
The base grid is 9 reels by 6 rows, expanding to a 6x9 format when the Boom Pirates feature triggers, using Wonderways technology.
What is the volatility level?
Volatility is listed as High, meaning wins can be spaced out with longer dry spells between them.
Curious what else we've got? See our pick of the best free slot titles.



