 No further downloadable content for either Guitar Hero or DJ Hero was made after February 2011 , though Activision committed to releasing content that was already in development by that time due to fan response ; later , in a move described by Game Informer as " the final nail in [ the series ' ] coffins " , Activision announced it would <unk> all DLC sales for the series ( although customers can still play tracks they have already bought ) as of March 31 , 2014 . Though Activision had moved away from the Guitar Hero series , the lessons learned helped them and developer Toys for Bob to handle the manufacturing and <unk> issues that came with the highly successful <unk> toy and video game franchise . 
