Guerrilla co-founder and Epic veteran is building a European alternative to Unreal Engine

A major European game-tech story has surfaced today. Arjan Brussee, co-founder of Guerrilla Games and former technical director at Epic Games, says he is building a new game engine called The Immense Engine. The goal is ambitious: create a fully European-hosted engine built by Europeans and designed around European rules, standards and data expectations. Brussee’s resume gives the claim weight. He worked on Epic’s Jazz Jackrabbit games, co-founded Guerrilla Games, helped lead production there, later co-founded Boss Key Productions, and then returned to Epic for an eight-year stint in senior Unreal Engine roles. That makes this more than a random startup pitch. For developers, the interesting angle is sovereignty. Unreal Engine and Unity dominate much of the market, while Chinese and American tech companies control a huge portion of modern game infrastructure. A European alternative could appeal to studios, governments and publishers that want more local control, regulatory clarity and independence. The huge question is whether The Immense Engine can offer the tools, documentation, asset pipeline, community support and commercial trust developers need. Building an engine is hard. Building an ecosystem is harder.