Trebuchet

Trebuchet is not a game. It is a precision physics sandbox that simulates the medieval counterweight siege engine with a level of mechanical fidelity rarely seen on mobile.

This is not a casual artillery game. Trebuchet is a dedicated engineering tool for understanding the dynamics of a trebuchet, from the dropping of the massive counterweight to the trajectory of the projectile. You control every variable: the weight of the counterweight, the length of the throwing arm, the pivot point position, the sling length, and the release angle. The app then calculates the result using a real-time physics engine, displaying the trajectory, velocity, and energy transfer in a clean, data-driven interface. It is a pure, unadulterated simulation for those who want to see the math behind the medieval war machine.

Core Simulation Mechanics

The interface is minimal and functional. You are presented with a side-view schematic of a trebuchet. You are not here to build a castle or fight a war. You are here to optimize a single, perfect launch. The core loop is one of iterative testing: adjust a parameter, fire, observe the trajectory line, adjust again.

• Counterweight Mass & Drop Height: The primary energy source. You can set the mass from a few kilograms to several tons. The drop height is determined by the frame geometry, which you can also adjust. The app visually shows the counterweight falling as the arm rotates.
• Arm & Pivot Mechanics: You define the ratio between the long and short arms of the lever. A longer short arm (where the counterweight is) gives more force but a shorter throw. A longer long arm gives more distance but requires a heavier counterweight to achieve high velocity. The pivot friction is also a variable, though it is set to a realistic baseline.
• Sling Geometry & Release Point: This is the most complex variable. The sling length and the angle at which the projectile is released are critical. A poorly timed release will send the projectile straight up or into the ground. The app provides a visual indicator of the release pin, and you can adjust its angle. The result is a genuine engineering challenge: find the perfect combination of these variables to achieve maximum range.

Key Advantages Over Casual Physics Games

This is not a game with levels or power-ups. It is a simulation tool. The key advantage is the depth of control and the clarity of the feedback.

• Real-time Trajectory Visualization: After each launch, a bright, clear arc is drawn showing the projectile's path. You can see the apex, the angle of descent, and the landing point. You can also overlay multiple trajectories from different parameter sets to compare them directly.
• Data-Focused Interface: Every launch generates a data panel showing maximum height, total distance, projectile velocity at release, and kinetic energy. This is not hidden behind a menu. It is displayed immediately next to the schematic.
• No Monetization of Core Mechanics: There are no timers, no energy systems, and no premium currency to buy better parts. The full simulation is available from the moment you install. The only potential in-app purchases are for cosmetic themes or alternative schematic display styles, which do not affect the physics.

Feature List

• Full parameter control: Adjust counterweight mass, arm ratio, sling length, and release angle for true engineering analysis.
• Real-time physics engine: Simulates gravity, torque, and energy transfer with high precision based on real-world mechanics.
• Trajectory overlay system: Compare multiple launch profiles side-by-side to identify the optimal configuration for maximum range.

Call to Action

Download the Trebuchet app now. Do not wait. If you have ever wondered what the perfect launch angle is for a given counterweight, this is the tool you need. Get it immediately to start your engineering analysis.

Technical Disclaimer

This application requires an active internet connection for initial download and for accessing optional cloud-based trajectory sharing features. The core simulation engine operates offline. The app may contain optional in-app purchases for cosmetic interface themes. It is rated for all ages. Data usage is minimal, limited to optional feature downloads. Standard data rates from your mobile carrier may apply. The developer, Android, provides this tool for educational and simulation purposes.