Warhammer 40,000: Space Marine 2 has unveiled Siege, its innovative twist on the classic Horde mode. The announcement comes with an inaugural teaser trailer, screenshots, and preliminary gameplay details. As an avid Warhammer 40,000 enthusiast and Space Marine 2 follower, I craved deeper insights—so I reached out directly to Tim Willits, Chief Creative Officer at Saber Interactive, with key questions. His responses shed fascinating new light on the project. Beyond analyzing Siege mode's core mechanics, Willits confirmed players can summon a Dreadnought during siege battles and explained the design choice capping co-op at three players. Our discussion also explored the game's long-term roadmap, confirming planned content expansion beyond its first year. Below you'll find comprehensive details about Space Marine 2's Siege mode and additional revelations about the game's future.