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15 October 2025, Sydney: Big Time Gaming (BTG) has released Castle of Terror II, a chilling sequel to its hit horror game.
The new version brings bigger wins, more features, and a darker atmosphere filled with suspense.
A horror sequel filled with thrilling features
Castle of Terror II takes players inside a spooky laboratory, where strange experiments unfold. Each spin can awaken Bonus Respins triggered by landing Scatters. When they appear, different bonuses come into play depending on where the Scatter lands.
The bonuses include:
- Brains – extra Brain symbols land on the reels.
- Alive – a random Win Multiplier is applied to all wins.
- Shock – Wilds reveal random multipliers.
- Monster – a random symbol becomes Wild on reels two to five.
- Horror – a random reel becomes fully Wild.
- As a result, every spin feels unpredictable, creating both tension and excitement.
Free Spins with growing multipliers
The Free Spins round increases suspense and rewards with each spin.
If one or more Scatters appear during a Bonus Respin, the lab bursts into chaos, triggering 10 Free Spins. Two or three Scatters add another 10 Free Spins, extending the action. During Free Spins, the Win Multiplier starts at 1x and grows after each winning spin. As a result, payouts can multiply quickly as the experiment intensifies.
Depending on where the Scatters land, players can also gain four extra spins, plus two more for each additional Scatter beyond the second.
For those who want to take control, the Bonus Buy feature offers instant access. Players can activate 10 Free Spins with two bonuses for 100x the stake, or 10 Enhanced Free Spins with three bonuses for 300x the stake. This gives more flexibility and faster access to high-volatility play.
A powerful sequel packed with suspense
Big Time Gaming continues to raise the standard for horror-themed content.
“Castle of Terror II is a terrifying slot that’s not for the faint-hearted. Players find themselves in a spooky lab where creepy experiments take place, but if they can hold their nerve, there are plenty of bonus features to discover.”
“The action starts with the Bonus Respins and the various features that can play out across the reels. But the real experimental stuff happens in the Free Spins, where bonuses collide and big wins can emerge from the chaos.”
“Castle of Terror II really does put players on the edge of their seats with heart-stopping action and plenty of unexpected jump scares. Think you have what it takes to enter the Castle of Terror for the second time? There’s only one way to find out.”
Big Time Gaming continues to evolve its portfolio
Castle of Terror II reflects Big Time Gaming’s ability to mix cinematic storytelling with creative mechanics. It enhances the horror theme while maintaining strong gameplay depth.
At the same time, the sequel strengthens BTG’s reputation for combining innovation, volatility, and engagement. With its mix of evolving features and high-energy design, Castle of Terror II confirms Big Time Gaming’s position as one of the most creative developers in the industry.
