QuickField is a Finite Element Analysis package for electromagnetic, thermal, and stress design simulation with coupled multi-field analysis.
Cost / License
- Freemium
- Proprietary
Platforms
- Windows

SIMPACK is described as 'General purpose Multi-Body Simulation (MBS) software which is used for the dynamic analysis of any mechanical or mechatronic system' and is an app. There are seven alternatives to SIMPACK for Windows and Linux. The best SIMPACK alternative is QuickField, which is free. Other great apps like SIMPACK are RoboAnalizer, CarSim, RecurDyn and MBDyn.
QuickField is a Finite Element Analysis package for electromagnetic, thermal, and stress design simulation with coupled multi-field analysis.

RoboAnalyzer is a 3D model based software that can be used to teach and learn the Robotics concepts. It is an evolving product developed in Mechatronics Lab, Department of Mechanical Engineering at IIT Delhi, New Delhi, India, under the guidance of Prof. S.K.
Computer simulation of vehicle dynamics for ride, handling, braking, and acceleration of cars, trucks, motorcycles, and motorsports with Windows OS and real-time systems.
RecurDyn is Computer Aided Engineering (CAE) software that is focused on Multibody Dynamics (MBD), while offering multiphysics solutions. The technology behind RecurDyn has superior calculation efficiency because it is based on recursive formulation.
MBDyn is the first and possibly the only free* general purpose Multibody Dynamics analysis software, released under GNU's GPL 2.1 (get a cached copy here).
MBSim is a multi-body simulation software. Its purpose is the simulation of the dynamics of mechanical systems.