Warning: Running the jar will delete all your current mods and replace them with the Necro Client mods.
Don't worry. If you forgot to back up your mods folder: Go to this directory: (.minecraft)/NecroBackups. You'll find backups of your mod and config folders there.
Run the jar file from the command line: java -jar NecroInstaller.jar.
Done! Necro Client is now installed.
To run Necro Client, run your Forge installation through the Minecraft Launcher.
Common Errors
Error: Java is outdated! | Fix: Install the latest JDK, in this case JDK 17.
Error: 'Git' is not found! | Fix: Make sure to install git
Bring your FPS back from the dead with Necro Client