This article covers a free glacier simulator where you can simulate the melting rate of a glacier over time under different environmental scenarios.

Here is a free interactive gravity orbit simulator software Windows. Use it to simulate gravity and earth on custom objects, solar system, milky way

This article covers a free gear simulator software for Windows. With this software, you can make gear models and simulate them in a virtual environment.

Here is a free solar cells simulator software for Windows. Use it to simulate 4 different type of solar cells and get results in graphical form.

This Free Electromagnetic Field Simulator Software for Windows lets you draw, edit, import, and simulate electrical drawings to monitor its electromagnetic field.

Here is a free anti gravity simulator software for Windows. Use it to simulate zero gravity scenario in space, include various space objects like Earth, Moon, Sun, etc

Here is a free volcano simulator software for Windows. Use this to simulate different volcanic eruptions and record the simulation to play it later