Ruin was the buzzed PS Vita action-RPG that comes with cross-platform; it will allow you to keep your progress of the game between Playstation 3 and PS Vita version of the game. It was called Ruin back then, but now it has been renamed to Warrior’s Lair.
Sony silently updated game’s official site with the new game because after all it’s just a title update and that wouldn’t affect experience of the game when you will play it.
You can read our initial impression of the game here, just remember, we are talking about former Ruin that is Warrior’s Lair of today. Confused ? me too.