Guerilla Games’ Co-founder Developing ‘European Alternative’ to Unreal Engine

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Arjan Brussee, a co-founder of Guerrilla Games, is starting a new company in the Netherlands to create a European alternative to Unreal Engine. He believes this project could not only compete with Unreal Engine but also drive innovation in areas like modular and intelligent AI software design.

Arjan Brussee began his career in gaming in the 1990s, contributing as a programmer to the Jazz Jackrabbit series. He then co-founded Guerrilla Games in 2003, serving as executive producer and COO for nine years. Sony acquired Guerrilla Games in 2005. Brussee later worked at Electronic Arts for 30 months as an executive producer on Battlefield Hardline and additional content for Battlefield 3. In 2014, he established Boss Key Productions, the creators of LawBreakers, which is no longer operating. He joined Epic Games in 2017 and spent eight and a half years there, progressing through roles as head of mobile, director of product management, and finally, technical director.

Brussee Working on AI-Native European Rival to Unreal Engine

In a May 2026 interview on the Dutch podcast De Technoloog, Brussee revealed he was developing a startup focused on a new graphics rendering engine, the Immense Engine. He explained that the project is a European-built platform designed to compete with existing graphics solutions from the US and China.

AI Agent Modules Billed as the Building Blocks of the Immense Engine

Immense isn’t just about creating virtual worlds based on real-world locations; its design is fundamentally about how it’s built. According to Brussee, the technology is being developed with AI fully integrated from the start. He believes the growing importance of AI allows them to reimagine core software like game engines. Instead of relying on users to manually navigate tools, the Immense Engine will use AI ‘agents’ as building blocks. This modular approach will make it simpler to add new features and technologies as they emerge, rather than having to rebuild the entire system.

The Immense Engine Could Extend Beyond Games

The Immense Engine, similar to many AI platforms today, will use cloud computing. According to Brussee, it will be fully hosted in Europe, which is important for applications like logistics and 3D simulations for defense that need to follow European data regulations. While these industries could benefit, European game developers are expected to be among the first to start using the engine.

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The increasing use of artificial intelligence in game development suggests a strong potential market for the Immense Engine, if it’s released soon. However, there’s currently no information about when it will be available. Building modern game engines is a long and complicated process, taking years of work. Because the current project is based in Europe, it might be eligible for EU funding, although there’s no sign that the developer is seeking it. The Immense Engine could potentially address a gap in the market similar to what happened in 2009 when Unity moved from Copenhagen to San Francisco to find investment and developers.

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2026-05-10 19:34