As the title says, I'm wanting to pick this game up on my vita but I cannot find it in the store on my vita and when I check the AU PSN store on my PC, I get a page not found error.

I've looked this up and the only thing I have found is a few unanswered threads on the vita support page.

So does anyone know what is up with this? I know it was up at least a few weeks ago.

Hey Dude. Try this link to see if you can get to it. That should lead you to the AU PSN store for Rogue Legacy on PS4 which also gets you the PS3 version and more importantly the Vita version you wanted.

Sweet. Thanks mate.