NecroCore is a hardcore death management plugin that adds a realistic injury system to your Minecraft server. When a player receives fatal damage, they enter a concussion state instead of dying immediately. During this time, they are weakened and have a limited window to be rescued by other players using golden apples, enchanted golden apples, or totems of undying.

If not rescued in time, the player dies, drops all items, and becomes a ghost. Ghosts cannot interact with the world, can fly, and are invisible, but they can be revived by other players through a ritual that requires totems of undying.

The plugin fully supports both English and Russian languages and saves player states (concussion, ghost) to disk, ensuring that players don't lose their status after a server restart.

Key Features:
- Concussion system with configurable duration and effects
- Rescue system using golden apples, enchanted apples, and totems
- Ghost mode with flight and invisibility
- Revival system with failure chance (reduces with successful attempts)
- Permissions for all commands
- Data persistence (concussed players and ghosts survive restarts)
- Commands: /necro, /necromode, /necroforce, /ghostnow, /necrohealth, /necroghosts
- Languages: English, Russian
- Fully configurable via config.yml
- Compatible with Minecraft 1.20.x – 1.21.x

Installation:
1. Download the latest version from the releases section.
2. Place the JAR file into your server's "plugins" folder.
3. Restart your server.
4. Configure the options in config.yml as needed.
5. Set permissions if required (defaults allow all players to use basic commands).