Update - Full June games line-up added.

At Sony's E3 press briefing today, the company announced plans to expand PlayStation Plus into a rotating selection of full retail games. The company has been offering discounts and 60-minute trials of full game downloads through Plus, but starting tomorrow it will be adding full games as free bonuses to boot.

The first crop will include Infamous 2, LittleBigPlanet 2, Just Cause 2 and Saints Row 2. Sony promised 12 free games this month, and a rotating selection in subsequent months.

Sony has since revealed the rest of the line-up, which also includes: Virtua Fighter 5, Ratchet & Clank: All 4 One, Warhammer 40K: Space Marine, Just Cause 2, Lara Croft and the Guardian of Light, Hard Corps Uprising, Choplifter HD, Zombie Apocalypse: Never Die Alone, and Sideway: New York.