Who Are Peter & Sons?
Peter & Sons is a slot studio that draws every frame by hand. Founded in 2019 by a team of gaming veterans, artists, and mathematicians spread across Barcelona, Yerevan, and Malta, the company has built its reputation on one principle. The art comes first. In an industry where most providers lean on 3D rendering engines and templated layouts, Peter & Sons sketch, ink, and colour their games from scratch. That visual identity is the reason players remember a Peter & Sons slot after one session.
The studio’s official site at peterandsonsgames.com showcases the full portfolio alongside news, partnerships, and release schedules.
The Founding Team
The studio was co-founded by Yann Bautista Wiberg and Mitri Wiberg. Yann handles commercial operations, marketing, and investor relations as Business Director. Mitri leads game production as Executive Producer. Both brought backgrounds in mobile gaming and casino development, and they assembled a distributed team of illustrators, sound designers, and mathematicians across four countries. That international setup feeds into the diversity of the games themselves. Norse mythology sits next to post-apocalyptic wastelands and Mesoamerican temples without any of them feeling forced.
Art Style and Design Philosophy
Every Peter & Sons slot looks like it was pulled from a graphic novel. The hand-drawn aesthetic runs through every element. Symbols, backgrounds, animations, UI. Characters have personality. Environments have depth. Even the low-paying symbols feel considered instead of dropped in from a stock library.
This is not decoration for its own sake. The visual storytelling shapes how each game feels during play. Barbarossa DoubleMax drips with grime and salt spray. Xibalba’s Mayan underworld pulses with ritual energy. Zombie Road looks like a Saturday morning cartoon that went off the rails. The art defines the mood, and the mood defines the experience.
The studio has described its approach as “craftsmanship in an industry optimised for speed.” They release fewer games than the largest providers but invest more per title. That trade-off shows.
Game Portfolio
Peter & Sons has released over 45 video slots and a handful of scratch card titles since 2019. The catalogue is available in more than 40 languages and distributed across 200+ online casino platforms in over 50 countries. Recent output sits around two new titles per month.
Notable games in the portfolio include the Barbarossa series, Xibalba, Hammer of Gods, Voodoo Hex, Dragon Blox GigaBlox, Water Blox GigaBlox, Monster Blox, Gunpowder, Robin Nottingham Raiders, Greedy Alice, Pop Cop, Animafia, and the expanding Barbarossa franchise. Newer releases like Rust World, Zombie Road, Cyber Runner, and Artifacts have pushed the studio into post-apocalyptic and sci-fi territory while keeping the hand-drawn signature intact.
The Barbarossa Series
If Peter & Sons has a flagship franchise, it is Barbarossa. The original pirate-themed slot introduced players to the studio’s ability to build atmosphere through illustration. Barbarossa Revenge followed with the DoubleMax system, adding progressive multipliers that grow with every cascade. Barbarossa Dragon Empire expanded the world further in late 2025, blending the pirate narrative with eastern mythology and landing an RTP of 96.57%.
The series demonstrates how Peter & Sons approaches sequels. Each entry changes enough to justify its existence while keeping the visual DNA that made the original work. You can play Barbarossa DoubleMax in free play right here on Ultimate Slots to see what the fuss is about.
Game Themes
The range of subject matter across the catalogue is wide. Norse mythology runs through Hammer of Gods and Valkyries. Greek and Roman history surfaces in Epic Hellas and Roman Glory. Mesoamerican culture drives Xibalba. Crime and mafia settings appear in Animafia and The Ghost Father. Fairy tales get twisted in Greedy Alice. Steampunk engineering powers Steamworks Gears of Fortune. Holiday themes show up in Bad Santa and Bunny Heist. Post-apocalyptic survival fuels Rust World and Zombie Road.
What connects these games is not the subject matter but the treatment. Every theme gets the full hand-drawn approach with custom characters, bespoke environments, and soundscapes built to match. The studio does not recycle visual assets between games.
Features and Game Systems
Peter & Sons games lean toward feature-rich designs. Cascading wins, progressive multipliers, expanding wilds, hold-and-win rounds, and free spins with retrigger potential appear across the catalogue. Several titles use licensed systems from Yggdrasil’s Game Engagement Mechanics library, most notably the GigaBlox system where symbols land in oversized blocks ranging from 2×2 up to 6×6 on the grid.
Dragon Blox GigaBlox pairs the oversized symbol system with a Lock’n Blox bonus where cash symbols merge for larger payouts, offering a max win of 10,000x. Monster Blox uses a wizard wild transformation feature alongside an expanding grid that stretches from 6×4 to 6×8 with up to 100 paylines. Water Blox GigaBlox adds roaming wilds that persist through respins.
Beyond the GigaBlox titles, the studio experiments freely. Multiplier cannons, dropping wilds, scatter pays, power reels, and bonus buy options appear across various games. The unifying thread is that features serve the theme rather than the other way around.
Volatility and RTP Profile
Most Peter & Sons slots fall within the high-volatility range. These are games built for longer sessions where extended quiet stretches give way to concentrated bursts of feature activity. Players who prefer steady, frequent returns will find the pacing challenging. Players who enjoy watching pressure build toward a potential payoff will feel at home.
RTPs across the portfolio typically land between 96% and 97%. Kaiser holds the highest confirmed RTP at 97%. Barbarossa Dragon Empire sits at 96.57%. Coin Blox comes in at 96.5%. Many titles are available with multiple RTP configurations for different operator setups, so the exact percentage can vary depending on the casino.
Technology and Platform
Every game in the catalogue runs on HTML5. Desktop, tablet, mobile. No downloads required. The studio uses Spine animation technology to bring hand-drawn assets to life with fluid movement, and games load quickly thanks to a cloud-native infrastructure built on Google Cloud Platform with global CDN support.
Behind the scenes, Peter & Sons operates on the Spinart Games Platform (SGP), a proprietary development framework that enables rapid content production without sacrificing visual quality. The platform handles auto-scaling and cross-device optimisation, making sure games perform consistently whether a player is on a flagship phone or a three-year-old tablet.
Licensing and Regulation
Peter & Sons holds licences from the Malta Gaming Authority (MGA), the UK Gambling Commission (UKGC), AGCO in Ontario, LOTBA in Argentina, and Spelinspektionen in Sweden. Those licences open the door to over 15 regulated markets including the United Kingdom, Italy, Brazil, Germany, Greece, Spain, Denmark, and several territories across Asia and Latin America.
All games use certified Random Number Generator technology, and the studio maintains compliance across every jurisdiction it operates in. For players, the multi-licence setup means Peter & Sons games are subject to the same testing and fairness standards as titles from the largest providers in the industry.
Yggdrasil YG Masters Partnership
Peter & Sons joined Yggdrasil’s YG Masters programme in October 2020. This partnership gave the studio access to Yggdrasil’s GATI (Game Adaptation Tools & Interface) technology, a preconfigured, regulation-ready development toolkit that simplifies the process of deploying games across multiple markets. Through GATI, Peter & Sons can focus on building games while Yggdrasil handles the technical infrastructure for distribution and compliance.
The partnership also opened up Yggdrasil’s Game Engagement Mechanics (GEM) library. That is where the GigaBlox licence originated, allowing Peter & Sons to build titles like Dragon Blox, Monster Blox, and Water Blox GigaBlox using the oversized symbol system. Distribution through Yggdrasil’s operator network has been a major growth driver for the studio.
Other Key Partnerships
Beyond Yggdrasil, Peter & Sons distributes through Relax Gaming’s Silver Bullet programme, gaining access to the Powered by Relax network and its global operator base. The studio also partnered with Oryx Gaming (now part of the Bragg Gaming Group) as an exclusive RGS content provider in October 2020, adding another tier-1 distribution channel.
On the operator side, Peter & Sons has secured direct content deals with major names. Interwetten signed a multi-market distribution agreement in December 2025, rolling Peter & Sons titles across Germany, Greece, Spain, and Sweden. Bet365 and Spillehallen have also added the studio’s games to their lobbies. The trajectory is clear. Each quarter brings new operator partnerships and broader market reach.
Awards and Industry Recognition
The studio has picked up notable awards in a short time. Peter & Sons won Rising Star Game Developer of the Year at the Kongebonus Awards in 2025 and followed that with Rising Star of the Year at the International Gaming Awards in 2026. Barbarossa Revenge took Best New Slot at the SlotWise Gaming Awards in 2024.
The MiGEA Malta Gaming Excellence Awards have recognised the studio multiple times across categories including Best Gaming New Slots Developer, Best Start-Up Company, and Best Gaming Casino Supplier. Zombie Road earned Best Design and Visuals at the CasinoJager Awards. The studio has also been featured in Gaming Intelligence’s Studio Showcase and made appearances at ICE Barcelona.
Distribution and Global Reach
Peter & Sons games are live on more than 200 online casino platforms across 50+ countries. The catalogue supports over 40 languages and multiple currencies, making the studio accessible to a worldwide player base. Cloud-based delivery through Google Cloud ensures fast load times regardless of geography.
The combination of Yggdrasil, Relax Gaming, and Oryx distribution channels gives Peter & Sons access to a significant portion of the regulated online casino market. For a studio that launched in 2019, the speed of that expansion reflects both the quality of the product and the strength of the partnership strategy.
Recent Releases
The studio’s 2025 and 2026 release schedule has been busy. Steamworks Gears of Fortune and Potion Power opened 2025, followed by Blood Club, Ghostfather Awakened, Boom Farm, Dig It, Bubblegum and Robo, Zombie Road, Cyber Runner, Barbarossa Dragon Empire, Bad Santa, and Bunny Heist. Rust World kicked off 2026 in January, Artifacts landed in March, and Roman Glory is scheduled for April 2026. The studio targets 24+ new titles per year and has maintained that pace consistently.
Playing Peter & Sons Slots in Demo Mode
Every Peter & Sons slot featured on Ultimate Slots is available to play for free in demo mode. No registration, no deposit, no restrictions on features. The demo versions run the same game builds as the real money versions, so what you see in free play is exactly what the full game delivers. Browse the full Peter & Sons collection to find your starting point, or jump straight into Barbarossa DoubleMax and Zombie Road to experience the studio’s range.
