Realistic ATC and traffic
simulation for X-Plane 11 and 12.
A full ATC and traffic simulation built on real-world procedures. Free, offline, and engineered with attention to realism.
A new plugin. The same promise.
After 10 years of experience coding 124thATC, I decided to dedicate myself to a completely new project, rewritten from scratch. NextATC starts from a new codebase and carries forward the knowledge, fixes, and improvements accumulated during 124thATC development.
124thATC has been discontinued and new public builds are distributed as NextATC. My work now goes into this new plugin, refined and pushed forward for X-Plane 11 and 12.
NextATC will stay free, and development will continue actively. Patreon supporters will help shape the features and characteristics of future versions of the plugin.
From now on, my efforts will focus entirely on this new plugin. With regret, that also means I will have to step away from the development of 124thATC.
NextATC is, and will always be, free.
If you'd like to contribute to the project, you can support NextATC on Patreon (recurring) or send a one-time donation. Patrons get every new build two months earlier, and Standard Membership unlocks dedicated technical support.
Get NextATC.
NextATC is in public alpha. Most flows work, but expect rough edges.
NextATC is free for everyone. The public build is hosted here on the site. Patrons get each new build two months earlier as thanks for supporting the project.






