2d Physics? Maybe Box2d?

Any plans to implement 2d physics engine like box2d? Hoping for 2d rigidbodies, joints, customizable colliders, and physics effectors (attract, repel, surface, directional, platform)

It is an unsupported experimental plugin at the moment, but the Paper2D plugin also wraps Box2D. The implementation is far from complete however, but you can see some progress.