Buy Besiege: The Broken Beyond Steam Key

Besiege: The Broken Beyond launches your medieval machine-building into the cosmos. This expansion takes the franchise's signature physics-based construction gameplay and transplants it into a hostile star system called Aranea, where you'll engineer spacecraft to navigate orbital mechanics, gravitational fields, and alien opposition. The campaign spans 11 interplanetary levels, beginning on the familiar island of Ipsilon before escalating through desert canyons, asteroid fortresses, and culminating in the destruction of an entire planet by hurling a moon into it.

The core gameplay loop remains intact: design, build, and deploy increasingly complex contraptions to overcome obstacles and defeat enemies. However, The Broken Beyond introduces genuine resource management for the first time through a dynamic fuel system. You must balance fuel reserves against your machine's mass—carrying enough to power rocket boosters, weapons, and thrusters while keeping your craft light enough to achieve liftoff. This creates meaningful engineering trade-offs absent from the base game.

The expansion features 13 new space-themed blocks including Boosters for propulsion, Control Thrusters for attitude adjustment, Rocket Fins and Grid Fins for aerodynamic stability, and the Blaster—a heavy weapon firing superheated fuel bursts. The physics engine now simulates individual gravitational fields for every large object simultaneously, following inverse-square-law principles. This enables elliptical orbits around planets, gravity-assist maneuvers, and the ability to establish complex multi-body orbital paths.

Beyond the campaign, The Broken Beyond includes an expansive cosmic sandbox populated with planets, moons, and destructible structures. The level editor extends into space, allowing players to customize gravity, place celestial bodies, and design multiplayer arenas. Besiege's multiplayer environment supports cooperative and competitive play in low-gravity environments.

This expansion appeals to physics enthusiasts and creative builders seeking deeper mechanical complexity. The Broken Beyond rewards experimentation and iterative design while maintaining the series' trademark blend of accessible entry points and challenging mastery curves. Whether you're launching ramshackle rockets or engineering precision orbital mechanics, the expansion delivers the chaotic destruction Besiege players expect.