I know the cover image is bad, but I couldn't just give you air or where door is...
The Invisible Room Demo
A downloadable game for Windows
The Invisible Room Demo/Idea
Someone I work with had the idea of a game with a room that was invisible. Now I tweaked his idea. I added a visible floor so that you can see that you are going somewhere in the room. Please, leave a comment if you like it.
Download and click to install.