I used a Quad Engine for game development on the part of the 72nd contest IGDC. Here's what happened: Quad Space Attack.
To move use the arrow keys. For shooting, use the A / S. To turn off the effects of press E.
The game is simple. Made for 2 weeks. Some parts are not completed yet, such as no sound. In general, as it is .
Quad Engine work has shown himself well. To use it simply, shaders, added just a line or two. There were a few bugs, but they have successfully corrected the author of the engine. In general, the engine is quite suitable for development.

And finally, a screenshot: