Hello.
Sometime sunnlok created thead about own launcher to cryengine.
https://www.cryengine.com/community_arc ... 1&t=124839
Could be it adapt to new cryengine v?

Pretty much that exact code is in the Windows Launcher project in the engine source code.
This is essentially what GameLauncher.exe does, you could always modify that code to create your own launcher.

Be aware though that with the standard launcher you have the option to statically link the engine and your game against it, creating one executable (broken right now anywas for cmake <.<).
So if you want to keep that option you need to reproduce the necessary exports and build configuration settings.