| AnchoredJoint2D | Parent class for all joints that have anchor points. |
| AreaEffector2D | Applies forces within an area. |
| BoxCollider2D | Collider for 2D physics representing an axis-aligned rectangle. |
| BuoyancyEffector2D | Applies forces to simulate buoyancy, fluid-flow and fluid drag. |
| CapsuleCollider2D | A capsule-shaped primitive collider. |
| CircleCollider2D | Collider for 2D physics representing an circle. |
| Collider2D | Parent class for collider types used with 2D gameplay. |
| Collision2D | Collision details returned by 2D physics callback functions. |
| CompositeCollider2D | A Collider that can merge other Colliders together. |
| ConstantForce2D | Applies both linear and angular (torque) forces continuously to the rigidbody each physics update. |
| CustomCollider2D | Represents a Collider2D that is configured by assigning PhysicsShape2D geometry to it via a PhysicsShapeGroup2D. |
| DistanceJoint2D | Joint that keeps two Rigidbody2D objects a fixed distance apart. |
| EdgeCollider2D | Collider for 2D physics representing an arbitrary set of connected edges (lines) defined by its vertices. |
| Effector2D | A base class for all 2D effectors. |
| FixedJoint2D | Connects two Rigidbody2D together at their anchor points using a configurable spring. |
| FrictionJoint2D | Applies both force and torque to reduce both the linear and angular velocities to zero. |
| HingeJoint2D | Joint that allows a Rigidbody2D object to rotate around a point in space or a point on another object. |
| Joint2D | Parent class for joints to connect Rigidbody2D objects. |
| Physics2D | Global settings and helpers for 2D physics. |
| PhysicsMaterial2D | Asset type that defines the surface properties of a Collider2D. |
| PhysicsSceneExtensions2D | Scene extensions to access the underlying physics scene. |
| PhysicsShapeGroup2D | Represents a group of PhysicsShape2D and their geometry. |
| PhysicsUpdateBehaviour2D | A base type for 2D physics components that required a callback during FixedUpdate. |
| PlatformEffector2D | Applies "platform" behaviour such as one-way collisions etc. |
| PointEffector2D | Applies forces to attract/repulse against a point. |
| PolygonCollider2D | Collider for 2D physics representing an arbitrary polygon defined by its vertices. |
| RelativeJoint2D | Keeps two Rigidbody2D at their relative orientations. |
| Rigidbody2D | Provides physics movement and other dynamics, and the ability to attach Collider2D to it. |
| SliderJoint2D | Joint that restricts the motion of a Rigidbody2D object to a single line. |
| SpringJoint2D | Joint that attempts to keep two Rigidbody2D objects a set distance apart by applying a force between them. |
| SurfaceEffector2D | Applies tangent forces along the surfaces of colliders. |
| TargetJoint2D | The joint attempts to move a Rigidbody2D to a specific target position. |
| WheelJoint2D | The wheel joint allows the simulation of wheels by providing a constraining suspension motion with an optional motor. |