A while back, for a bit of fun, I started writing a game / visual novel called A Murder In The Public Domain. A Murder In The Public Domain is a murder mystery game or visual novel built from public domain movies, sounds, pictures, and images. I cobble these all together into a mystery story. The game follows the adventures of Dirk Caliber and Mary Livingston as they try to solve the murder of her mysterious employer. The game will always end at a conclusive point but I intend to extend it. How many times? No idea. In what direction will the story go? No idea. As I find new movies, clip art, images, sounds, and music, I let them guide the story. Since I'm doing the programming I also expect I'll extend the user interface over time. How? No idea, usually it just comes to me. Hope you enjoy it.
I've released this game open source GPLv3 so it's free to anyone and everyone. I'm currently releasing in Windows and Linux and I expect to make a Mac release fairly soon. It's a continuing story and I'll be adding more releases / chapters. There are third party applications and codecs required for the different operating systems. These are also free and described on the web page or in the instructions of the game itself.
Here are the links:
Here's a film clip of some game play: