KeepBody

Inspired by the offline body mechanic in Rust, this plugin brings a similar experience to your Minecraft server. When a player logs out, a Citizens NPC (player-type) is spawned at their location as an offline "body".
Upon login, the NPC's state (location, HP, inventory) is synced back to the player and the NPC is removed.

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Requirements

Server	Spigot or Paper 1.21.1+
Java	21+
Required Plugin	Citizens

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Features

• Offline body — Spawns an NPC with the player's skin and equipment at logout
• State sync — Restores location, HP, and inventory to the player on login
• NPC death — If the NPC is killed while the player is offline, items drop naturally and the player dies on next login
• Inventory access — Right-clicking the NPC opens its inventory (configurable)

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Required Plugin

Plugin	Checked version	Download
Citizens	2.0.35-SNAPSHOT	https://ci.citizensnpcs.co/job/citizens2/

Citizens must be placed in the plugins/ folder. KeepBody declares it as a required dependency so Citizens is always enabled first.

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Installation

1. Download Citizens and place it in plugins/
2. Download KeepBody and place KeepBody-1.0-SNAPSHOT.jar in plugins/
3. Start the server

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Configuration (plugins/KeepBody/config.yml)

# Whether right-clicking the NPC allows editing its inventory
# true: items can be added/removed  /  false: inventory cannot be opened
allow-inventory-edit: true
# Whether the NPC lies down (uses SleepTrait) at the player's logout position
sleep-npc: true
# Whether to keep the NPC frozen in place when hit
# true: velocity and position are restored each hit so the NPC never moves
immobilize-npc: false
# Whether the NPC is invincible (takes no damage while the player is offline)
# Hurt animation and knockback still occur; only HP tracking is skipped
invincible-npc: false
# Language setting: 'en' (English) or 'ja' (Japanese)
language: 'en'
# Ghost NPC cleanup interval in seconds
# A "ghost" is an untracked "(Offline)" NPC left behind by a crash or reload.
# This interval controls how often the plugin scans for and removes them,
# and respawns any missing body NPCs for currently-offline players.
ghost-cleanup-interval: 300
# Debug mode
# true: show debug messages in console and in-game (OP only)
debug: false
# In-game messages. Color codes using '&' are supported (e.g. &cRed, &aGreen).
messages:
  en:
    inventory-name: "%s's inventory"
    barrier-name: "&cUnavailable"
    npc-spawned: "Spawned body of %s."
    npc-died: "Body of %s has died."
    inventory-opened: "'%s' opened the body of '%s'."
  ja:
    inventory-name: "%sのインベントリ"
    barrier-name: "&c使用不可"
    npc-spawned: "%s のボディーを生成しました。"
    npc-died: "%s のボディーが死亡しました。"
    inventory-opened: "'%s' が '%s' のボディーを開きました。"