I'm surprised Duke Nukem Forever [1] didn't make the list. Background for younger readers whose gaming years didn't include the mid-1990's: The first two Duke

I'm surprised Duke Nukem Forever [1] didn't make the list. Background for younger readers whose gaming years didn't include the mid-1990's: The first two Duke Nukem games were fairly nondescript 2D platformers, but the third entry in the series, Duke Nukem 3D, was a first-person shooter, quite technically impressive and enormously popular. Duke Nukem 3D was one of the three most influential early first-person shooters that defined a genre that's still quite popular today. (The other two major pioneering games, of course, were Wolfenstein 3D and the original Doom.) Duke Nukem Forever, the fourth entry in the series, is a legendary tale of development hell. Development started in 1996, the same year as Duke Nukem 3D was released, and the game was announced in 1997. The game was finally released in 2011, after numerous staffing changes, reboots, and engine changes (3D graphics technology changed enormously in that time frame; Duke Nukem 3D ran with software renderering in MS-DOS on 486's and Pentiums in the tens to low hundreds of megahertz, while the PC's of 2011 were basically quite similar to modern machines with multicore, multi-GHz CPU's, gigabytes of memory, and GPU's with programmable shaders). Duke Nukem Forever can't have been cheap to develop, just due to the sheer length of time involved. [1] https://en.wikipedia.org/wiki/Duke_Nukem_Forever https://en.wikipedia.org/wiki/Duke_Nukem_Forever