For Our Skyline
developed by Rotorist Workshop.
A 3D helicopter shooter set in a futuristic city that you must defend. Still in very early development, with mostly placeholder art. That being said I already like the low poly look, so it should be pretty exciting to see what it looks like when refined.
You can download the pre alpha here to give it a test. If you have any feedback, the developer would love to hear it. :)
via /r/gamedev