What is the RTP of Thunderline Express: Hold and Win?

Thunderline Express: Hold and Win has an RTP (return to player) of 95.74%. RTP is the theoretical percentage of total stakes a slot returns to players over a very large number of spins, as published by Penguin King — individual sessions can land far above or below it.

How volatile is Thunderline Express: Hold and Win?

Thunderline Express: Hold and Win is rated medium volatility. Medium-volatility slots sit between the extremes — a balance of win frequency and win size.

What is the max win on Thunderline Express: Hold and Win?

The advertised maximum win for Thunderline Express: Hold and Win is 2,250x. Max wins are extremely rare by design — treat them as a ceiling, not an expectation.

Who makes Thunderline Express: Hold and Win?

Thunderline Express: Hold and Win is developed by Penguin King and was released in 2026.

What is the layout of Thunderline Express: Hold and Win?

Thunderline Express: Hold and Win plays on a 3×3 grid with 5 paylines.

Thunderline Express: Hold and Win Slot: Review, RTP 95.74% & Stats

Key Facts

Thunderline Express: Hold and Win is a medium-volatility online slot from Penguin King with an RTP of 95.74% and a maximum win of 2,250x.

Provider: Penguin King
RTP: 95.74%
Volatility: Medium
Max win: 2,250x
Layout: 3×3
Paylines: 5
Released: 2026

Page updated August 2026

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Game Review

Reviewed by Johnessy

Thunderline Express: Hold and Win is an online slot from Penguin King, with medium volatility, a published RTP of 95.74% and a listed maximum win of 2,250x.

RTP varies between casino configurations and markets, so check the information screen inside the version you are playing. A maximum-win figure is a theoretical ceiling, not a likely result. How these pages are researched and what the recorded play data does and does not show is set out in our .