Rigs of Rods (also known as RoR), is an open source truck, car, airplane and boat simulator. You can drive, fly or sail in total freedom in an open environment.
Rigs of Rods is primarily a truck simulator, but it can also simulate cars, cranes, airplanes, boats, bridges, and any arbitrary construction.
This is a simulation game based on a custom advanced soft body physics engine called Beam. Beam simulates a network of interconnected nodes (forming the chassis and the wheels) and gives the ability to simulate deformable objects. Vehicles chassis and wheels are simulated in real-time as flexible objects, giving the simulation an extremely accurate behavior, while allowing the vehicles to be simply specified structurally. Gameplay is emergent and takes place in a virtual 9km2 sandbox environment. The chassis and wheels deform according to the stress they bear, and crashes are interesting to see too.
Features include:
- Highly moddable.
- Unique soft-body physics:
- Vehicles chassis and wheels are simulated in real-time as flexible objects.
- Advanced flight model based on blade element theory, allowing the accurate simulation of any airplane, base on their physical dimensions and wing airfoils.
- Accurate buoyancy model based on elemental pressure gradients, enabling boats with complex hulls to move realistically in the swell.
Website: www.rigsofrods.org
Support: Forums
Developer: Pierre-Michel Ricordel
License: GNU GPL v3

Rigs of Rods is written in C++. Learn C++ with our recommended free books and free tutorials.
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