Mass Effect on the PS3, available as either a standalone purchase of $15 through PSN or as part of the Mass Effect Trilogy package. If free is more your speed, you can grab demos for Ni no Kuni: Wrath of the White Witch, Guardians of Middle Earth and LBP Karting.
On the PS Vita, treasure hunting transitions to trading cards in Uncharted: Fight for Fortune. PS Plus members can snag a free copy of BioShock 2 and enjoy discounts on Puddle, Rockstar Games Collection 1 and more. For the full list of this week's content, hit up the PlayStation Blog through the source link below.