The beloved physics-based builder Besiege is heading beyond the atmosphere. Developer Spiderling Studios has officially announced Besiege: The Broken Beyond, a massive new expansion set to launch in Q2 2026 on PC via Steam.
With The Broken Beyond, the sandbox destruction favorite trades medieval battlefields for interplanetary chaos, introducing space-themed mechanics, gravity-defying physics systems, and entirely new ways to build, destroy, and experiment.
A Bold New Era for Besiege: From Castles to Cosmos
The Besiege: The Broken Beyond expansion takes the franchise’s iconic machine-building formula and launches it into space. Instead of storming castles and toppling fortresses, players will design handcrafted wooden spacecraft capable of breaking through planetary atmospheres and surviving the perils of orbital travel.
This isn’t your typical sci-fi makeover. According to Project Lead Daniel Schmidt, the team drew inspiration from Leonardo da Vinci’s inventive sketches, Jules Verne’s fantastical science fiction, and even space-faring orcs. The result? A “medieval space program” aesthetic where rockets, timber frames, bolts, and boosters coexist in glorious, chaotic harmony.
The Besiege: The Broken Beyond expansion aims to stand out in a market saturated with space games by focusing on creative physics-based problem solving rather than realism alone.
Space Campaign: Conquer Alien Worlds
At the heart of Besiege: The Broken Beyond is a brand-new space campaign filled with handcrafted challenges. Players will:
- Battle alien spacecraft
- Overcome atmospheric entry and escape sequences
- Destroy hostile planetary defenses
- Navigate unusual gravity fields and spherical worlds
These levels are built around advanced gravitational mechanics and orbital physics, pushing players to rethink their approach to propulsion, balance, and structural integrity.
If you’ve mastered destruction on land, prepare to relearn it in zero gravity.
New Building Blocks and a Fuel System
The Besiege: The Broken Beyond expansion introduces specialized space-themed blocks designed for interplanetary engineering. Key additions include:
- Advanced propulsion systems
- A fully reworked fuel mechanic
- Control modules for space navigation
- Physics-driven gravity manipulation tools
The introduction of a dedicated fuel system adds strategic depth, forcing players to manage efficiency, thrust, and trajectory during launches and combat encounters.
This evolution builds on the foundation that made Besiege a standout in the builder genre while significantly expanding mechanical complexity.
Immersive Physics Simulation and Orbital Mechanics
Physics has always defined Besiege, but The Broken Beyond expansion elevates it to new heights. Players will experience:
- Spherical planetary environments
- Variable gravitational fields
- Orbital mechanics affecting flight paths
- Atmosphere entry and exit challenges
These mechanics introduce entirely new gameplay dynamics, turning each launch into a delicate balance between engineering genius and catastrophic failure.
A Brand-New Sandbox in Space
Creative players will love the new moon-inspired sandbox environment included in the Besiege: The Broken Beyond expansion. This massive spherical world allows experimentation without campaign constraints.
You can:
- Explore orbiting objects
- Build experimental spacecraft
- Test long-range propulsion systems
- Stage low-gravity destruction scenarios
The sandbox remains a core pillar of Besiege’s success, and this new cosmic playground expands that freedom exponentially.
Multiplayer Madness in Low Gravity
Multiplayer returns with expanded possibilities. In Besiege: The Broken Beyond, players can:
- Engage in low-gravity PvP battles
- Create custom space-themed levels
- Use the in-game editor for interplanetary arenas
- Collaborate or compete in orbital combat scenarios
The chaotic creativity of multiplayer is now amplified by unpredictable gravity physics and three-dimensional movement.
A Legacy of Creative Destruction
Since its full 1.0 launch in 2020, Besiege has remained one of the most beloved physics-based builders on PC. With over 70 building blocks and 55 single-player campaign levels across four island nations, the game established itself as a sandbox powerhouse.
Its first major expansion, The Splintered Sea, launched in 2024, expanding naval warfare and aquatic destruction. Now, Besiege: The Broken Beyond expansion pushes the franchise even further—literally into orbit.
For new players, an expansion bundle will be available at launch. Existing owners of Besiege or The Splintered Sea can purchase The Broken Beyond separately.
Besiege: The Broken Beyond Release Window
The Besiege: The Broken Beyond expansion is scheduled to launch in Q2 2026 on Steam. A specific release date has not yet been confirmed, but fans can expect further updates in the coming months.
With its bold shift to space, deeper physics systems, and expanded sandbox tools, this expansion could redefine what’s possible within Besiege’s creative destruction formula.
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