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The Green Knight Oath of Thorns Slot

4.8 / 5
Author: Charlon Muscat
6 min read clock
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The Green Knight Oath of Thorns was released on July 24th, 2025. Play’n GO frames it within a grim Arthurian setting, where cursed mechanics and oath-bound modifiers set the momentum. Gameplay runs on a fixed 5×3 layout with 20 paylines, high volatility, and a 96.27% RTP. You can win up to 14,000x your stake, driven by escalating multiplier free spins, Thorn Spins, and a Sword Meter that randomly triggers Wild multipliers. If you’re curious how all these features and haunting visuals come together, continue reading The Green Knight Oath of Thorns review for my full breakdown.
Provider

Provider

Play’n GO
Type of Slot

Type of Slot

Newspapers
Theme

Theme

Arthurian Legends
Reels

Reels

5
Paylines

Paylines

20
Stakes Range

Stakes Range

0.1 – 100
Bonus Features

Bonus Features

3
Free Spins

Free Spins

5
Multiplier

Multiplier

2x–100x
Max Win

Max Win

14,000x
RTP

RTP

96.27%
Volatility

Volatility

High
View All

The Green Knight Oath of Thorns Demo

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The Green Knight Oath of Thorns Slot RTP, Details & Wager Limits

The adventures in The Green Knight Oath of Thorns slot game take place on a classic 5×3 grid with 20 fixed paylines. And just as you’d do in many other online slots, wins form by landing 3 or more matching symbols on adjacent reels, starting from the leftmost. Scatter symbols follow a different rule. They pay regardless of position.

Bet sizes range from as little as 10p up to £100 per spin. And aside from being a varied spectrum, it’s also consistent with what you’d expect to find in new slots. Just tap the plus and minus buttons to change your stake accordingly.

There is also an autoplay function to set up to 100 spins with options to set loss and win limits. And feel free to enable fast play through the settings for quicker spins. However, none of these features are available at The Green Knight Oath of Thorns casinos within the UK.

The Green Knight Oath of Thorns RTP comes in a touch higher than the average you’ll find across the best online slots, set at 96.27%. But the high volatility rating means you can expect those dry spells to test your patience before anything decent lands.

As for The Green Knight Oath of Thorns max win, it sits at 14,000x, and while I haven’t managed to reach it myself, I’ve still had some great sessions playing for real money at the top online casinos. In particular, my best shot came during the Thorn Spins.

Tip: Give The Green Knight Oath of Thorns demo a shot first until you’re well acquainted.

The Green Knight Oath of Thorns Theme—A Tale of Twisted Forest Magic With Gifts of Thorns

Play’n GO places you deep in an ancient, cursed forest with twisted trees and creeping vines framing the reels. There’s a faint green mist hanging in the air, as the dense woods stretch into shadows behind the grid, hinting at the Thorn Creature’s dark magic spreading through the land. Once a feared figure, the Green Knight, now joins Camelot’s warriors to face this lurking threat while holding firm against its curse and promises of forbidden strength.

Each element of the sound design, from the background music to the win highlights, is engaging. I particularly love how it brings the theme to life with its eerie orchestral soundtrack mixed with warrior grunts, vines shifting, coins clinking on wins, church bells, and more. Plus, there are plenty of visual animations too, especially with the whole background constantly swaying in the wind and the high-paying symbols popping off the reels.

For the lower-paying icons, you’ll find stone-carved card royals from 10 to A, a design element often seen in many free slots. Though here, they’re etched with Celtic knots. Then, moving up the paytable, there are four characters featuring the blue knight, the old wizard, the sorceress, and the red-armoured knight. There’s also a thorned creature, Wild, and a Green Knight scatter.

This is what each pays at UK online casinos:

SymbolPayout/Info
the green knight oath of thorns slot 10 symbol 103, 4, or 5 = 0.2, 0.4, or 2x the stake
the green knight oath of thorns slot j symbol J3, 4, or 5 = 0.2, 0.4, or 2x the stake
the green knight oath of thorns slot q symbol Q3, 4, or 5 = 0.3, 0.6, or 3x the stake
the green knight oath of thorns slot k symbol K3, 4, or 5 = 0.3, 0.6, or 3x the stake
the green knight oath of thorns slot a symbol A3, 4, or 5 = 0.4, 0.8, or 4x the stake
the green knight oath of thorns slot blue knight symbol Blue Knight3, 4, or 5 = 1, 1.5, or 7.5x the stake
the green knight oath of thorns slot wizard symbol Wizard3, 4, or 5 = 1, 1.5, or 7.5x the stake
the green knight oath of thorns slot orceress symbol Sorceress3, 4, or 5 = 1.2, 2.5, or 12.5x the stake
the green knight noath of thorns slot red knight symbol Red Knight3, 4, or 5 = 2.5, 5, or 25x the stake
the green knight oath of thorns slot wild symbol Wild3, 4, or 5 = 2.5, 5, or 100x the stake; substitutes for all except scatters
the green knight oath of thorns slot scatter symbol Scatter3, 4, or 5 = 2.5, 5, or 100x the stake; triggers free spins

The Green Knight Oath of Thorns Mobile Slot

Play’n GO has fully optimised The Green Knight Oath of Thorns for smooth play at mobile casinos. What I found especially unique is that most menu icons, except the spin button, are removed from the main game, keeping the screen very clean. This means that to access settings, autoplay, paytable, bet options, and game rules, you’ll need to use the burger icon.

However, in addition to its uncluttered design, I found the interface to be responsive, and the animations continue to play out at full quality. In other words, there’s no slowdown compared to the desktop version.

Would you like to try other games on mobile? Check out our list of the best payout slots.

The Green Knight Oath of Thorns Bonus Features

The Thorn Spins are one of the main highlights in The Green Knight Oath of Thorns, which activates during the free spins round. As for other features, there’s a rather rewarding Sword Meter and powerful Wild multipliers, all of which you’ll see explained in detail below.

Sword Meter

The Sword Meter in The Green Knight Oath of Thorns sits above the reels and it randomly activates during base game spins or Thorn Spins to award Wild multipliers of x2, x5, x10, x25, or x100. When active, any Wilds that land will carry the shown multiplier, and wins including these Wilds are boosted by that exact value. Therefore, you’ve got:

Symbol Payout/info
2x Wild 3, 4, or 5 = 5, 10, or 200x the stake
5x Wild 3, 4, or 5 = 12.5, 25, or 500x the stake
10x Wild 3, 4, or 5 = 25, 50, or 1,000x the stake
25x Wild 3, 4, or 5 = 62.5, 125, or 2,500x the stake
100x Wild 3, 4, or 5 = 250, 500, or 10,000x the stake

Free Spins

Landing three or more scatters triggers five free spins, each one activating a higher Progressive Sword Meter multiplier. The sequence goes from 2x on the first spin, then 5x, 10x, 25x, and finishes at 100x on the fifth spin. Only multiplier Wilds matching that spin’s value appear, and at least one is guaranteed each time.

Thorn Spins

Landing 2+ scatters during the free spins triggers five Thorn Spins, along with their respective payout, while the current Sword Meter multiplier locks in.

These guarantee 2 to 3 Wilds on each spin, but since no additional scatters can land, they can’t be retriggered. Once they end, your free spins continue from where they paused, unless they’ve all been used up.

The Green Knight Oath of Thorns Verdict: Dark Arthurian Quest With Powerful Multiplier Features

4.8/5
The Green Knight Oath of Thorns Slot
The Green Knight Oath of Thorns had no trouble drawing me in with its haunting forest setting. That’s not to mention the combination of rising multipliers and the Thorn Spins feature, all of which successfully create tension.
Pros
Pros
Max win of up to 14,000x the stake
Pros
Unique escalating multipliers up to 100x
Pros
Immersive medieval theme
Pros
Fun audio design and animations
Cons
Cons
Thorn Spins cannot be retriggered
Cons
No jackpot feature available

Medieval-themed slots are always intriguing, and The Green Knight Oath of Thorns delivers that with its haunting visuals and oath-bound storyline. Most particularly, I really like how Play’n GO combines escalating multiplier free spins with Thorn Spins to create moments of genuine tension and payout potential, with wins of up to 14,000x on offer.

This slot may use a classic 5×3 setup, but there’s nothing quite traditional about how it plays. I especially appreciate how the layered audio is combined with subtle animations to create a living, breathing world. And even though its high volatility meant I often had to wait for those bigger payouts to land, I couldn’t help but be pulled further and further into its dark medieval domain with each spin.

If you’re looking for more medieval adventures, head to The Sword and the Grail: Excalibur by Play’n GO, where you’ll fight alongside the knights of the Round Table. This one comes with a max win of 25,000x your bet.

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Charlon Muscat
Charlon Muscat

318 Articles

Charlon is an accomplished iGaming professional with years of experience in the UK and Irish markets. If you need expert advice on online casinos and slots, he’s the one to turn to. His deep knowledge and insights into the industry make him a trusted resource for guidance and recommendations.

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