The Lost Sky is a 2D multi-directional action game set in a dystopian world.
With the uprising of an army of battle drones, the planet's civilization has been reduced to but nothing. You will fight in order to destroy any last vestiges of the haywire drones. The mission is to "Reset" the planet - to wipe the slate clean and to usher in a new beginning.

Link to pages in the store: https://store.steampowered.com/app/863920/The_Lost_Sky/

Instructions for activation keys to Steam:
1) Download and install the Steam client
2) Register an account or log in with your username in the existing one.
3) Go to the "My Games" and select "Activate via Steam ...", and enter the key received after payment.
4) Once activated, the game will appear in the game list (Library) and you can download it