Build freely
Parts remain composable instead of being locked into predefined vehicles or machines.
Selected work2D Physics
Featured game case study
2D Physics
Contraption
Sandbox
Build machines. Wire logic. Test what survives.
Godot 4 · GDScript · Windows · AndroidProject overview
A construction game where mechanics and computation share the same world.
The sandbox gives players a modular set of physical, electronic, and logical components for building machines that move, react, calculate, communicate, and break.
The core design challenge was not adding isolated parts. It was making mechanical joints, Boolean signals, propulsion, weapons, structural damage, saving, and large-scale physics behave as one understandable system.
Observe consequences
Recoil, momentum, collision damage, and breakage make engineering decisions visible.
Scale deliberately
Optimization supports larger contraptions without abandoning physical feedback.
Construction system
Mechanical vocabulary, not prefabricated answers.
Structural
Screws, breakable connections, rigid clusters
Rotational
Bearings, one-way bearings, servos, transmissions
Linear
Ropes, springs, pistons, winches
Propulsion
Thrusters, engines, propellers, rockets
Design principle
Every component exposes a focused behavior. Complexity emerges from how parts are connected rather than from oversized all-in-one objects.
Boolean signal system
Contraptions can sense, remember, calculate, and communicate.
Signals turn a physical build into a programmable machine. Inputs from switches and sensors flow through reusable logic components before driving mechanical or destructive outputs.
InputsSwitches · Sensors
→ProcessingLogic · Memory · Arithmetic
→OutputsMotors · Weapons · RF
01Switches & sensors
02Logic gates
03Flip-flops & counters
04Encoders & decoders
05Adders
06Multiplexers
07Wireless RF
08Programmable components
Force & damage
Powerful parts still obey the physical world.
Propulsion
Thrusters, engines, propellers, and rockets apply force to the same bodies and assemblies the player constructs.
Weapons
Cannons, machine guns, and damaging lasers interact with collision and damage systems rather than acting as visual effects.
Feedback
Physical recoil, impact force, momentum transfer, and structural breakage make the outcome readable and consequential.
Physics architecture
Large builds without a web of unstable joints.
Complex contraptions can overwhelm a naïve joint-per-connection model. The rigid-cluster system consolidates structural groups to reduce solver instability and improve performance while preserving impact-based breakage and momentum.
More solver work and greater instability as builds grow.
Lower joint overhead while damage can still separate the structure.
Player workflow
Experimentation needs tools for iteration, not only construction.
Select & configure
Build selection and object properties make large machines manageable.
Copy & reuse
Copy/paste and saved contraptions turn successful subsystems into reusable building blocks.
Save worlds
World saving and loading preserve complete experiments between sessions.
Track behavior
Camera tracking and statistics monitoring help inspect moving systems and performance.
Physics environments
The same machine meets five different worlds.
Normal
Baseline gravity and atmosphere
Ocean
Water-focused physical experiments
Beach
Mixed land and water construction
Moon
Low-gravity engineering
Space
Momentum without ordinary gravity
Performance strategy
Designed for hardware people actually have.
The project targets low-end Windows and Android devices. The Compatibility renderer, fixed 60 Hz simulation, simplified 2D assets, tiled textures, and performance-conscious physics architecture keep the sandbox accessible without removing systemic depth.
Engine
Godot 4
Language
GDScript
Physics
GodotPhysics2D at 60 Hz
Renderer
Compatibility
Platforms
Low-end Windows and Android devices
Visual strategy
Simplified 2D assets and tiled seamless textures
What this project demonstrates
Simulation depth through composable systems.
The sandbox brings game design, physics architecture, programmable logic, persistence, optimization, and cross-platform constraints into one project. Its strongest result is a toolkit where players can discover solutions the game never explicitly prescribed.