Yggdrasil
Yggdrasil — provider review
Yggdrasil isn't just a slot studio — it's a full-cycle B2B platform: alongside its own portfolio of 450+ games, the company sells other developers the ready-made technology to produce slots themselves. Founded in 2013, headquartered in Malta, the provider is now live across 700+ online brands through 350+ operators.
"We intend to entertain the entire world, one game at a time," is how the company sums up its philosophy. Under the leadership of CEO James Curwen, alongside Managing Director & Chief Product Officer Tomasz Kowalik and CTO Andrei Popov, the studio has grown into a team of 110+ people representing over 20 nationalities across five continents.
What is Game in a Box™, and why is it more than just a slot portfolio?
What sets Yggdrasil apart from other slot developers is its own production platform, Game in a Box™: a single pipeline where game design, math models, prototyping, testing, and certification happen within one interconnected workflow supported by AI models. According to the provider, this lets a slot go from concept to a certified product in a matter of weeks instead of months.
Two B2B programmes are built on this technology: Game in a Box™ for established studios (a fixed fee of €22,000 per game per game), and Studio in a Box for teams without their own studio, where Yggdrasil handles production while the partner focuses on creative direction and brand (a €60,000 fee per game, with Yggdrasil taking a 30% revenue share).
💡 YG Masters — a showcase for third-party studios under Yggdrasil's roof
Under the YG Masters programme, the company curates content from independent game studios worldwide and takes on licensing, certification, localisation, and distribution through its operator network, while partners retain creative control and their intellectual property. The programme currently includes 21 partner studios.
What signature mechanics does Yggdrasil use?
The GEM (Gameplay Engagement Mechanics) lineup is a set of building blocks the studio embeds across different slots to create a recognisable play experience:
- Gigablox — variable-size symbol blocks, from 2×2 up to 6×6, that can appear at any point during a spin.
- Splitz / DoubleMax / MultiMax — a family of mechanics built around splitting and multiplying symbols on the grid.
- WildEnergy — energy accumulated from wilds that gradually powers up a bonus.
- TopHit, WildFight, FastPot5, Gigarise — additional signature mechanics, each tuned for a different type of engagement, from risk-taking to accelerated bonus buildup.
Beyond the GEM lineup, the studio also has earlier recognisable solutions — for example, the expanding play field with accumulating multipliers in Valley of the Gods, released back in 2017.
Where is Yggdrasil licensed, and who audits its games?
Yggdrasil Gaming Ltd operates under a Critical Gaming Supply Licence, MGA/B2B/230/2012, issued by the Malta Gaming Authority. Beyond Malta, the provider is certified in more than 20 jurisdictions and holds licences in the UK (three separate UK Gambling Commission licences across different entities — Malta-hosted, Gibraltar-hosted, and a standalone software licence), Gibraltar, Romania (two ONJN licences), the Isle of Man, Greece, Belgium, Sweden, and Denmark.
The random number generator and the games themselves are tested by accredited laboratories, and the company's information security management system is certified to ISO/IEC 27001.
💡 What the Gigablox mechanic looks like in practice
Hades was the studio's second slot built on the Gigablox mechanic — symbol blocks from 2×2 up to 6×6 can appear at any point during a spin, and landing them alongside the Wild Hunt feature amplifies the effect. It's one of the clearest demonstrations of Yggdrasil's GEM mechanics in action.
Yggdrasil's top slots: from classics to new mechanics
- Vikings Go Berzerk — a sequel to the studio's cult Viking series, with each character's rage meter building up and a Berzerk mode in free spins. RTP 96.1%, medium-high volatility, a €93,910 cap.
- Valley of the Gods — an Egyptian theme with re-spins on every win and a play field that expands to up to 3,125 ways to win. RTP 96.2%, high volatility, a €580,000 cap.
- Hades — an underworld theme built on the Gigablox mechanic with blocks up to 6×6 and a Wild Hunt feature. RTP 96%, high volatility, a €1,112,900 cap — one of the most generous ceilings in the studio's portfolio.
- Manic Fairy — a 2025 release with a fairy-and-magic theme, a 5×3 grid with 243 ways, and a buy-bonus option. RTP 96%, high volatility, a 20,000x cap.
- 3 Wonders Zoo — a zoo theme with sticky wilds and multipliers across 25 lines. RTP 96%, medium-high volatility, a 1,524x cap.
- MexoMax 2 WildEnergy MultiMax — an Aztec theme on a 6×6 grid built around the studio's signature WildEnergy MultiMax mechanic. RTP 96%, high volatility, a 10,000x cap.
A clear pattern emerges: nearly all of the studio's recent releases ship with a fixed 96% RTP and a buy-bonus option, while earlier titles like Vikings Go Berzerk and Valley of the Gods carry their own individual RTP values without a single shared standard.
How does Yggdrasil approach responsible gaming?
The provider builds responsible gaming tools directly into its game client: self-exclusion, age verification, a reality-check function, and jackpot amount display. Staff undergo annual training on responsible gaming principles, and the studio supports the GambleAware organisation.
Who should look into Yggdrasil's slots?
What players like
- Recognisable signature mechanics (Gigablox, WildEnergy, Splitz) wrapped in different themes
- A broad licensing base — from Malta and the UKGC to Sweden, Denmark, and Belgium
- Built-in responsible gaming tools and support for GambleAware
- Regular new releases with a transparent 96% RTP and a buy-bonus option
What to keep in mind
- Some earlier titles carry high volatility alongside a relatively modest payout cap (as with Vikings Go Berzerk, 2016)
- The portfolio mixes GEM mechanics with older classic slots — worth checking the release year before picking a game
- Some titles carry individual RTP values outside the standard 96% — worth checking the exact figure in-game
| Player profile | Verdict | Why |
|---|---|---|
| Looking for recognisable signature mechanics | 🟢 Yes | Gigablox, WildEnergy, Splitz, and other GEM mechanics appear across dozens of slots |
| Values transparent, consistent RTP | 🟢 Likely yes | New releases carry a fixed 96% RTP |
| Wants big jackpot potential in a single spin | 🟢 Likely yes | Caps like €1,112,900 on Hades and €580,000 on Valley of the Gods |
| Prefers a compact, uniform portfolio | 🟡 Proceed with caution | The portfolio mixes mechanics from different eras of the studio — from 2016 to 2025 |
⚡ Is Yggdrasil worth choosing?
Yggdrasil suits players looking for more than just a set of themes — its signature mechanics like Gigablox, WildEnergy, and Splitz carry across titles and are easy to recognise even without knowing the game's name. A broad licensing base and built-in responsible gaming tools add trust to the provider as a whole.
Where can you play Yggdrasil slots?
Yggdrasil's games are available at casinos featured in the GamblingShot ranking, and the full slot catalogue with filters by RTP, volatility, and theme is in the grid below this review.
FAQ
1
How long has Yggdrasil been operating?
The company was founded in 2013, and its MGA licence MGA/B2B/230/2012 was issued on 1 August 2018 (the year in the licence number is not the issue date) — Yggdrasil has been in the market for over 12 years.
2
Does Yggdrasil hold a licence?
Yes. Yggdrasil Gaming Ltd operates under a Critical Gaming Supply Licence, MGA/B2B/230/2012, issued by the Malta Gaming Authority, and also holds licences with the UKGC, ONJN (Romania), the HGC (Greece), and several other regulators — over 20 jurisdictions in total.
3
What is Game in a Box™ from Yggdrasil?
It's the provider's own slot production platform: design, math, testing, and certification all happen within a single AI-assisted workflow, letting games get built significantly faster than a classic development cycle.
4
What signature mechanics does Yggdrasil have?
The studio's key GEM mechanics include Gigablox (symbol blocks up to 6×6), WildEnergy, Splitz, DoubleMax, MultiMax, TopHit, WildFight, FastPot5, and Gigarise. Each is built into different themed slots while keeping a recognisable play experience.
5
Which Yggdrasil slots are the most popular?
Recognisable titles include Vikings Go Berzerk, Valley of the Gods, and Hades, alongside recent releases Manic Fairy, 3 Wonders Zoo, and MexoMax 2 WildEnergy MultiMax.
6
Are Yggdrasil's games independently audited?
Yes. The RNG and the games themselves are certified by accredited laboratories, and the company's information security management system meets the ISO/IEC 27001 standard.
7
What is YG Masters?
It's a programme under which Yggdrasil curates content from independent studios and handles licensing, certification, and distribution through its own operator network, while partners keep creative control. The programme currently includes 21 studios.
Where to play Yggdrasil slots
Casinos from our catalogue that carry this provider’s games. Always check terms and bonuses on the casino page.
Games from Yggdrasil
