Ruin debuted at E3 last year on PS Vita and PS3. This dungeon crawler can be played on either system, sharing progress so that you can keep making progress on the go.
One thing though; it’s not called Ruin anymore. PlayStation.com (via IGN) has renamed the title to Warrior’s Lair. It’s one of the games that won’t be joining Vita’s February 22 launch line-up, so hopefully we’ll be seeing it soon after.