Big Thunder Review
3.8/5Reviewed by Dan
Big Thunder is a 5-reel slot from Ainsworth with 30 fixed paylines. Released in May 2017, it offers bets from 0.01 to 90 per spin. A demo is available to review the layout and paytable.
- Volatility
- high
- RTP
- 94.38%
- Provider
- Ainsworth
- Release
- 2017-05-17
- Reels
- 5
- Minimum bet
- 0.01
Content last verified Aug 9, 2026 via First Look Games
Ainsworth
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Game overview
Big Thunder is a five-reel, 30-line slot with a high-volatility profile from Ainsworth. The recorded release date is 2013-10-13. The format uses 5 reels and 30 paylines.
Features and mechanics
Its appeal is the direct game format rather than a long chain of separate bonus systems. The demo is useful for checking the paytable, round speed and controls before any real-money decision.
RTP and volatility
The listed RTP is 94.38 %. The game is rated high volatility, which is useful when comparing its likely rhythm with another title.
What to check in the demo
In the demo, focus on the controls, paytable and round sequence. Check how the stake control changes the total cost of a round and read the in-game paytable before comparing the title with another slot. A short practice session can explain the rules, but it cannot establish how often a feature or win will appear in future play.
Our verdict
Big Thunder is most relevant to players looking for a five-reel, 30-line slot with a high-volatility profile. Its higher-volatility profile makes a fixed session budget especially important. Treat every paid round as entertainment and never chase losses.
