Welcome to our deep dive on Roaring Forties — the demo, the maths, and whether it earns a spot in your rotation. Developed by Greentube, Roaring Forties arrives with a high-variance maths model and an RTP of 95.48%. The maximum win sits at 40,000x, so there's serious upside on the table. It first went live in 2018 and still earns its place today. Visually it's built with crisp artwork and atmosphere, with the action running on a 5-reel grid running 10 paylines. Let's break down what works and what doesn't.
Written by Emma Roberts · Last updated: January 2026
Roaring Forties comes to us from Greentube. Presentation-wise it's wrapped in polished, characterful visuals, and it leans toward a high volatility profile at a published RTP of 95.48%. Under the hood you'll find a 5-reel grid running 10 paylines.
Where Roaring Forties earns its keep is the feature set. Look out for scatter symbols that unlock free spins and extra bonus rounds. With high variance, this one is aimed at players who can ride out the swings for the top wins. On balance, Roaring Forties is a no-frills option worth a few spins in the demo first.
At 95.48%, the RTP is slightly below the industry average of ~96%. While this is typical for many popular slots, players should be aware of the slightly lower theoretical return.
High volatility means longer gaps between wins, but when wins do land, they can be significantly larger. A bigger bankroll and patience are recommended for this type of slot.
About 1 in 3 spins results in a win. This is a moderate hit frequency that balances win frequency with payout size.
Roaring Forties features scatter symbols that can trigger free spins rounds. Landing the required number of scatter symbols anywhere on the reels activates the free spins feature, giving you extra chances to win without additional bets. During free spins, special modifiers may apply to boost your winning potential.
2.9 / 5 — Average
Roaring Forties by Greentube provides a straightforward slot experience. While it may not break new ground, it offers high volatility gameplay that will appeal to certain player preferences.