I’m currently working on a bridge builder game (with the working name Bridge4k):
Applet: http://x2d.org/java/4k/bridge4k.html
Webstart: http://x2d.org/java/4k/bridge4k.jnlp
To select or place a node, use the left mouse button.
To deselect or delete a node, use the right mouse button (or ctrl+left mouse).
To run the simulation, press [Space].
To restart the level, prees [R].
“Road parts” can only be built horizontally between the topmost supporting nodes.
I do have a bit of space left. Any comments and suggestions are warmly appreciated!