Lord of the Rings: War in the North and The Cave headline this month's PlayStation Plus offering on PlayStation 3.

Those two will be joined by a high-definition port of an acclaimed PlayStation 2 action-adventure title: Okami HD centers on Japanese folklore, and tells the story of how the land was saved from darkness by the Shinto sun goddess, who took the form of a white wolf.

All three titles are available now.

On the Vita side of things, players may enter a game of life or death in the novel-style title Zero Escape: Virtues Last Reward, which will be available to download from April 10.

That game will be joined on April 24 by Thomas Was Alone, an indie puzzle platformer featuring narration from Yes Man's Danny Wallace.
April.

Sony is also offering a bonus 90 days to any who sign up to PlayStation Plus or extend their current subscription.

With those additions in mind and a few deletions, the full list of PlayStation 3 games available on PlayStation Plus this April is:

Okami HD, Lord of the Rings: War in the North, The Cave, Joe Danger 2: The Movie, Quantum Conundrum, Dead or Alive 5, F1 Race Stars, inFamous 2, LittleBigPlanet 2, Joe Danger, MotorStorm Apocalypse.

And on the Vita:

Zero Escape: Virtues Last Reward, Thomas Was Alone, Metal Gear Solid HD Collection, Puddle, Gravity Rush, Uncharted: Golden Abyss.