The Digital Foundry team dives into one of gaming’s most fascinating mysteries: why perfectly rational adults keep buying the exact same game over and over again.

From higher frame rates and sharper graphics to new hardware and the irresistible urge to answer questions nobody asked, the crew explores the many reasons gamers choose to “double dip.” Is it the promise of technical perfection? A desire to see how a favorite title performs on new hardware? Or simply the inability to walk past a sale without convincing themselves they absolutely need a fourth copy of the same game?