I have an open source application called Flappy Bird Qt. As the name suggests, it is a clone of the notorious Flappy Bird game.
I wrote its code from scratch and I put extra effort to make it run as fast and versatile as possible.
As the developer, I wanted to make it a "PortableApps" app myself but I don't have much time nowadays. And also I really don't have any experience regarding PortableApps.
It should be fairly easy to do so. It uses config.ini to store config and it uses registry through QSettings() to store record points.
So it would be nice if someone with enough knowledge with PortableApps made this small game a "PortableApps" app.
Lastly, how do apps get qualified to be listed under the "Apps" section? I wonder if this small game could qualify.
Licensing: Apart from graphics and sound effects, it is MIT licensed. However graphics and sound effects are proprietary work and they are used under non-commercial manner. As far as I know though author of the assets actually permitted usage of these assets for it's clones. (He replied in a tweet when somebody asked for it.)