Finally I've made what people are asking for, I revamped and added physics to the Scratch Forts! WASD to scroll the screen Click on a node to begin, click on a node or the air to place. Beams will be frozen for a short period to allow you to build off of them. Press space to stop building.
So far it has the same amount of functionality as Scratch Forts 1, but with physics! I wrote all the code with inspiration from my physics class. Based off of Forts by Earthwork Games