The Green Knight: Oath of Thorns

The Green Knight: Oath of Thorns Slot Review

Play’n GO returned to their beloved Arthurian Legends series in July 2025 with The Green Knight: Oath of Thorns, a high-volatility slot that builds on the mythology we’ve come to love. Our team found this to be a polished continuation that revives appreciation for the series whilst introducing a fresh layer of mechanic sophistication. With a 96.27% RTP, escalating multiplier wilds that reach x100, and the innovative Thorn Spins feature, this slot delivers the action-packed experience fans have come to expect—though it does arrive with some realistic compromises compared to its predecessor.

Quick Verdict

• Overall Rating: 8.2/10
• The Green Knight: Oath of Thorns stands as a quality addition to the Arthurian Legends series, delivering the dynamic gameplay and visual polish Play’n GO is renowned for. The Sword Meter with escalating multiplier wilds creates genuinely engaging free spins, and the Thorn Spins mechanic provides an enticing second-tier bonus. However, the lower max win of 14,000x and incremental nature of the innovation mean this feels more like a solid series continuation than a genuine evolution. Best suited to players who value polished mechanics and dynamic visuals over groundbreaking features.

Base Game & Features

The Green Knight runs on a classic 5-reel, 3-row grid with 20 fixed paylines. You’ll wager between €0.10 and €100.00 per spin, with the game processing your wins consistently when 3 or more matching symbols land across the reels from left to right. The slot features sharp graphics and smooth gameplay—typical Play’n GO quality that ensures the experience feels polished whether you’re playing on desktop or mobile.

What sets The Green Knight apart are its feature mechanics. The base game isn’t just a warm-up to the bonus—it introduces the Sword Meter, a mechanic that carries through to the free spins and creates layered gameplay throughout your session.

Sword Meter & Multiplier Wilds

Here’s where the action truly takes shape. During both the base game and free spins, the Sword Meter triggers escalating multiplier wilds that progress through x2, x5, x10, x25, and x100 values. These trigger randomly, creating moments of genuine tension when you see the meter advancing. Our team found this feature to be a promising and iconic mechanic—it transforms regular spins into opportunities for substantial multiplied wins.

The escalation feels natural. Early spins might give you a x2 or x5 multiplier, but as the Sword Meter progresses, you’re building towards that x100 moment. It’s engaging without feeling forced—the kind of mechanic that keeps you invested between bonus rounds.

Free Spins & Instant Wins

Free spins trigger when 3 or more Scatter symbols land on the reels. Here’s the immediate reward structure, and it’s worth noting the instant win amounts that accompany your free spin allocation:

• 3 scatters: 5 free spins plus 2.5x instant win
• 4 scatters: 5 free spins plus 5x instant win
• 5 scatters: 5 free spins plus 100x instant win

That 100x instant win from 5 scatters gives you an immediate boost before the free spins even begin. It’s the kind of moment that makes a difference, particularly on higher-volatility games where those upfront prizes matter.

Thorn Spins: The Secondary Bonus

This is where Play’n GO made a smart design choice. During your free spins, if you land 2 or more Scatter symbols, you unlock the Thorn Spins feature. What happens next is genuinely engaging: the game locks your current Sword Meter multiplier in place and awards 5 additional Thorn Spins with guaranteed 2-3 multiplier wilds on each spin.

Here’s the key detail: scatter symbols don’t appear during Thorn Spins, so you’re purely focused on landing those guaranteed multiplier wilds on your locked multiplier. If you’ve managed to reach that x100 Sword Meter level, this becomes a genuinely thrilling moment. Our team found the Thorn Spins mechanic creates tension at the prospect of x100 multiplier activation—it’s the kind of feature that makes the game memorable.

Game Specifications

The Verdict

The Green Knight: Oath of Thorns occupies an interesting position within Play’n GO’s Arthurian Legends portfolio. On one hand, you’re getting a genuinely polished slot with engaging mechanics. The Sword Meter creates dynamic gameplay, the Thorn Spins feature provides meaningful secondary rewards, and the 96.27% RTP combined with high volatility makes this suitable for players who enjoy dynamic gameplay paired with strong visual themes and exciting win potential.

However, there’s also a realistic assessment to make. The 14,000x max win falls short of what the original Green Knight offered (which came with a 40,000x potential), and the game feels more like a solid series continuation than genuine evolution. The feature innovation is relatively incremental—the familiar multiplier wild progression from x2 to x100 carries over unchanged, and there’s little here that fundamentally distinguishes this from its predecessors.

That said, if you’re a fan of the series, you’ll likely appreciate what’s here. The visual design maintains that Play’n GO quality we’ve come to expect, the Sword Meter mechanics are genuinely engaging, and the polished effects throughout create an experience that feels legendary. The high-volatility gameplay, spiky bonus features, and dynamic interface mean every bonus feels substantial. For players seeking polished mechanics and familiar themes over groundbreaking innovation, The Green Knight: Oath of Thorns delivers.

Frequently Asked Questions