Freeware 'LevelUp' 737NG Series Introduced for X-Plane

[BobSturm]

a new line of freeware 737NGs has been announced by 'LevelUp', the product of a re-structuring of the now-defunct Ultimate Project.
The line will include five variants over the Ultimate's original three - bringing the 737-600 and 737-900 alongside the previously released 737-700, 737-800 and 737-900ER. According to the developer, each aircraft has been updated to modern-day standards.
https://www.thresholdx.net/news/lvlup1