Sony announced the two latest additions to its free PlayStation Plus line up, and each one has something special to offer.

To prep gamers for Grand Theft Auto V madness this week, Grand Theft Auto: Liberty City Stories is free-of-charge for both the PSP and the PS Vita, introducing players to new character Toni Cipriani as he fights back against mobsters who set him up. You'll cover miles of terrain and take part in several dangerous missions in this enthralling chapter.

Meanwhile, PS3 owners can finally play the high-definition version of Ico, a brilliant adventure where you control a brave young boy as he fights to keep a mysterious girl safe in a dangerous world. Featuring breathtaking artwork and innovative gameplay, Ico is sure to keep your attention for some time.

In addition, various discounts are available on other PlayStation 3 and Vita releases. Sleeping Dogs: Digital Edition will drop to $9.99, while both the Kane and Lynch games will be much cheaper, going for $5.99 and $7.99. Finally, you can score Real Boxing on PS Vita for $8.99 – a dollar off the original price – and PixelJunk Monsters: Ultimate HD for $11.99.