I’ve made a very simple reactive agent that simulates an (extremely simplified) Apollo lunar module landing. You can also land it manually in the program. It was built as a project for my Intelligent Systems class in February 2010. I may expand it if I have the time.
It’s built in C# and WPF and requires .Net 4.0. You can download it now at Codeplex or get the source.
Here’s a short video of it working: