IGF finalist Don't Starve is available on PlayStation 4 from the PlayStation Store today for £12. Better still, it's free for anyone who subscribes to PlayStation Plus.
The Illustrious Pirates pack available for Assassin's Creed 4: Black Flag is the paid release of a pre-order bonus, and beyond that, there's not much out there.
You may enjoy the digital bundled release of Rockstar's Bully and GTA: San Andreas games, although both are now a little old.
Far Cry 3 has been discounted to £9.99, though, or £8.99 if you subscribe to Plus.
The full list is on the European PlayStation blog.