https://store.steampowered.com/app/3626470/Sky_Sorcerer
Sky Sorcerer is an exciting top-down shooter game where you take on the role of a mighty wizard battling waves of monsters in the air.

INSTRUCTION FOR ACTIVATION:

1. You must download and install Steam http://steampowered.com/download/SteamInstall.msi
2. Log in to your account or register a new one.
3. Go to the "My Games" section and select "Activate via Steam ..." and enter the key received after payment.
4. After activation, the game will appear in the list of games (Library) and you can download it