Pulldownit Pro is described as 'Pulldownit is a brand new dynamics solver which allows for the creation of fractures as well as massive rigid bodies simulations'. There are eight alternatives to Pulldownit Pro for a variety of platforms, including Windows, Autodesk 3ds Max, Linux, Mac and iPad. The best alternative is Autodesk Maya. It's not free, so if you're looking for a free alternative, you could try Demolition Master. Other great apps like Pulldownit Pro are Autodesk 3ds Max (Paid), 3DSimED (Paid), RayFire (Paid) and Thinking Particles (Paid).
3DSimED is a Windows DirectX application allowing the creation and visualization of models from many racing sim formats. Models can be exported to Assetto Corsa, Automobilista, rFactor 2 (and 1), GTR2, Race 07, GTL, N2003 and many other games.
Demolition Master is a 3dsmax tool based on Thinking Particles for make quick, and easy destructions. I provide a 3dsmax scene, with Demolition Master on it, all debries already connected and FumeFx setup.