(this is not a guide)
Hello im here to show you people one way to make your own anti tweak (checksum starter)
Files Are Open Source Code. and can be use for everyone.
Configure your Server: https://github.com/Nihlus/Launchpad/wiki/Game-Developer-Quickstart
Make your Starter/Installer: https://github.com/Nihlus/Launchpad/wiki/Distributing-Launchpad-on-Windows
The hard part is disable or hide startgame from your client (game.exe) to prevent byspass by users. ( i wont explain how)
Source: https://github.com/Nihlus/Launchpad/wiki