John Hunter and Galileo’s Secrets Slot

John Hunter and Galileo’s Secrets is a Pragmatic Play video slot built around a adventure, john hunter, scientist, treasure and universe theme. You can spin the full-featured demo right here for free — no download, no signup and no deposit required.

The game runs on a Paylines engine on a 5-3 grid with 10 paylines, and ships with a return-to-player (RTP) of 96.5%. Volatility is rated Very High, so expect swingier sessions with bigger but less frequent payouts.

The maximum win is capped at 5,000× your stake — a serious ceiling that puts it among the higher-potential slots in the catalogue. Bets range from $0.1 up to $250 per spin in real-money play, though in this free demo you play purely with virtual credits.

Key features

• Expanding Wilds (or Symbols)
• Hold & Spin
• Money Respin
• Mystery Expanding Symbol
• Mystery Symbols
• Respins

This slot also offers a Bonus Buy option, letting you pay a fixed multiple of your stake to jump straight into the bonus round instead of waiting for it to trigger naturally.

How to play the John Hunter and Galileo’s Secrets demo

Use the language and currency selectors above the game window to load the demo in your preferred setup, then press play. The demo behaves exactly like the real game — same maths, same features, same visuals — but every credit is virtual, so nothing you win or lose is real money.

Released 20.02.2025 by Pragmatic Play.