It may be a mistake, as has happened before with the likes of Fallout 4’s season pass, but currently, PS3 title Yakuza 5 is free for PlayStation Plus users.
Go grab it while you can, it’s ruddy excellent!|
[Update] It seems Yakuza 5 has replaced Fat Princess in this month’s Plus lineup. Again, this could be a mistake or a last minute switch.
[Update 2] It now appears on the Plus lineup instead of Fat Princess. Make of that what you will.