https://store.steampowered.com/app/831790/Geeste
Take on the role of the ultimate Ghost-Fighting robot "Ghostatron 9000" and eradicate every ghost in site, you are humanity's last hope. Will you be the 1st one to make it to the end, to claim your prize?

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