Release Date Q2 2026 (Targeting before end of June)
Platforms Linux (Native), PC (Steam, Humble Store, Fanatical)
Developer Spiderling Studios

Spiderling Studios is taking their cult-classic physics builder to the one place that hasn't been corrupted by wood-and-cog trebuchets: space. The Broken Beyond expansion has just been announced, and it’s a massive pivot from the terrestrial sieges we've mastered over the last decade. We’ve seen the community build everything from functional mechs to logic-gate computers on solid ground, but this expansion throws a massive wrench into the works with orbital mechanics and zero-G chaos.

Medieval Space Program: Wood, Bolts, and Boosters

The core hook here is what Project Lead Daniel Schmidt calls a "medieval space program." Instead of sleek NASA-grade titanium, we’re looking at ships cobbled together from wood and bolts, fueled by a brand-new propulsion system. Spiderling is leaning into a "Space-Ork" meets Jules Verne aesthetic that feels perfectly on-brand for Besiege's trial-and-error gameplay.

According to Schmidt, the team wanted to explore something different in a saturated space market. "With Besiege originally being a medieval building game it was exciting to explore that aesthetic in space, drawing inspiration from the likes of DaVinci, Jules Verne, and even Space-Orks," he noted. Our take? This is exactly the kind of "wacky idea" that keeps an eleven-year-old title relevant.

The Physics Overhaul: Beyond Simple Gravity

If you thought managing weight distribution on a catapult was tough, The Broken Beyond is about to wreck your muscle memory. This isn't just a reskin of the existing sandbox. We're looking at a fundamental shift in the physics engine:

Spherical Worlds and Orbital Mechanics

The expansion introduces new forms of gravitational fields. We’ll be dealing with spherical worlds—specifically a large moon sandbox—where gravity isn't just a constant downward pull. You’ll have to account for orbital mechanics and the sheer technical headache of atmospheric entry and exit. For a game built on precise block-snapping and tension, this is a massive jump in complexity.

New Block Sets and Fuel Systems

To survive the vacuum, we're getting a suite of space-specific blocks. These include new propulsion and control options, which are governed by a completely new fuel system. This adds a layer of resource management we haven't seen in the base game, forcing players to min-max their designs for efficiency rather than just raw structural integrity.

Campaign and Multiplayer Chaos

The expansion isn't just a lone-wolf sandbox. It features a full space campaign where you’ll take your "inter-planetary madness" and pit it against alien foes. You won't just be knocking down castle walls anymore; you’ll be engaging in ship-to-ship combat and potentially "destroying their worlds."

For those who prefer social destruction, the expansion brings low-gravity arenas to multiplayer. We expect the meta to shift instantly as players figure out how to exploit the new gravitational fields to sling-shot debris at their friends. The in-game editor is also being updated to support these new environments, meaning the workshop is about to be flooded with some truly mind-bending celestial maps.

The In-Game News Verdict

Besiege has always been about the joy of watching a complex machine fail spectacularly. Moving that loop into orbit with "wood and rocket boosters" is a stroke of genius. While the Q2 2026 release window is still a bit of a wait, the promise of spherical gravity and Jules Verne-inspired engineering makes this a "must-watch" for anyone who enjoys high-stakes physics simulation.