"Old" isn't a good term for computer games, I think. A game might be years and years old and still be as innovative and original now as when it was released (System Shock 2). Conversely, a game might have been released one or two years ago, but it's since been superceded by better, more original and groundbreaking games of its genre (Halo 2).

"Old" isn't a good term to describe any kind of media. "Dated" might be a better term.