https://xgamers.gr/2017/06/%ce%be%ce%b5%ce%ba%ce%af%ce%bd%ce%b7%cf%83%ce%b1%ce%bd-%cf%84%ce%b1-steam-sales-%cf%84%ce%bf%cf%85-%ce%ba%ce%b1%ce%bb%ce%bf%ce%ba%ce%b1%ce%b9%cf%81%ce%b9%ce%bf%cf%8d/