Example oneboxes using Steam URLs
[onebox url="http://store.steampowered.com/app/72850/"]
[onebox url="http://store.steampowered.com/sub/28187/?snr=1_4_4__104"]
[onebox url="http://store.steampowered.com/app/282470/"]
[onebox url="http://store.steampowered.com/app/570/"]
[onebox url="http://store.steampowered.com/app/236430/"]