19+

Potion of Madness free demo

A slot about Dr J, a scientist whose potion turns him into the monstrous Mr H. Each Scatter that lands triggers a different effect.

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Demo by Play'n GO, virtual credits only. Updated .

Potion of Madness slot by Play'n GO

How Potion of Madness works

One Scatter turns Dr J into Wilds across the reels, and two Scatters start a Re-Spin with sticky Wilds that continues until no new Wilds land. Three or more Scatters start Free Spins on 5×6 reels with 40 paylines, where Dr J symbols become Wilds that can expand vertically.

Before you play

Try the demo with the sound off first to focus on the symbols and the paytable. A demo uses the same rules and maths as the real-money version, only with virtual credits.

Play this slot for real money

Casinos that accept Canadian players. Compare offers on casino bonuses before you deposit.

Not available to residents of Ontario. 19+ (18+ in Alberta, Manitoba and Quebec).

  • N1Bet

    Welcome package $10,000 + 200 FS over four deposits. Payments shown: Interac, Visa, Mastercard, Apple Pay and more.

    Visit N1Bet

  • RollXO

    Welcome package $20,500 + 250 FS over four deposits. Payments shown: Visa, Mastercard, Apple Pay, Bank Transfer and more.

    Visit RollXO

  • LuckyHunter

    Welcome package $25,000 + 350 FS over four deposits. Payments shown: Interac, Visa, Mastercard, Apple Pay and more.

    Visit LuckyHunter

Offers as shown on each casino's Canadian page on 19 October 2026. Wagering and other bonus rules are set by the casino, so read them on the casino site. We may earn a commission if you sign up through these links.

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