What game took 15 years to make?
Duke nukem forever: 1996-2011 (15 years) unsurprisingly, the (not actually real) award for most delayed game of all time goes to duke nukem forever, the sequel to 1996’s duke nukem 3d that took a whopping 15 years to see through to completion. Duke nukem forever holds the guinness world record for the longest development for a video game, at 14 years and 44 days, though this period was exceeded in 2022 by beyond good and evil 2 and in 2024 by kien.