First, Rupert, The Phelps Twins and some more are doing a voice on the Video Game from Harry Potter and the Deathly Hallows, sadly they couldn't get Dan and Emma.
And second. Daniel seems to be addicted to the Harry Potter LEGO Game, according to musicrooms.net.
He intended to give the game to a cousin, but decided to play it once first and quickly became addicted. Daniel is now spending all his free time trying to complete it, and has been raving about it to anyone who will listen."Dan had a free version of the LEGO Harry Potter game which he planned to give to a younger relative," a source close to the actor is quoted as saying. "Instead he's been playing himself. He loves it. He's almost completed it."