We have been working in this weird horizontal shoot 'em up with a parallel timelines mechanic.
Here you can watch the trailer: https://youtu.be/LYFyWoy2oro
We have released today a completely functional demo with 2 levels and 3 difficulties, it is available for Windows, macOS and Linux and you can choose among 5 languages for the texts within the game, please consider giving it a try if you are interested: http://vulturestrike.com/downloads/
If you like it, please consider giving it a vote to help it pass Greenlight, we just launched the campaign:http://steamcommunity.com/sharedfiles/filedetails/?id=894341386
This is a game that might feel a bit weird, the cliché "easy to learn, hard to master" doesn't necessarily apply, for many players it took a while to get used to it, I hope you find it engaging and entertaining.
Several players, including some from this forum, have tested earlier versions of Vulture Strike and provided feedback to improve it; we are of course still open for additional feedback to further polish the game, so please feel free to express your opinion!
As I mentioned in the post in the Development section a while ago, our main inspirations were (for different aspects of the game): Border Down, Gekirindan, Ikaruga and Lords of Thunder, which doesn't mean it plays or feels or looks anything like any of those games.