It’s been 11 long years since the unveiling of Squadron 42, Star Citizen’s singleplayer campaign

It’s basically a small portion of Star Citizen

"As we move into the polishing phase…

https://en.wikipedia.org/wiki/Duke_Nukem_Forever

On May 24, 2011, Gearbox announced that Duke Nukem Forever had “gone gold” after 15 years.[16] It holds the Guinness world record for the longest development for a video game, at 14 years and 44 days,[17] though this period was exceeded in 2022 by Beyond Good and Evil 2.[18]

https://www.guinnessworldrecords.com/world-records/most-protracted-game-development/

I assume that the reason that the Guiness Book of World Records doesn’t accept Beyond Good and Evil 2 is that they probably require an actual release.

Duke Nukem Forever was released on June 14, 2011, and received mostly unfavorable reviews, with criticism for its graphics, dated humor and story, simplistic mechanics, and unpolished performance and design. It did not meet sales expectations but was deemed profitable by Take-Two Interactive, the owner of 2K Games.

https://en.wikipedia.org/wiki/Beyond_Good_and_Evil_2

Beyond Good and Evil 2 has been referred to as vaporware by industry figures such as Jason Schreier due to its lengthy development and lack of a release date.[3] In 2022, Beyond Good and Evil 2 broke the record held by Duke Nukem Forever (2011) for the longest development of a AAA video game, at more than 15 years. In 2023, the creative director, Emile Morel, died suddenly at age 40.