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Relay Challenge

Relay Challenge turns a Minecraft survival world into a multiplayer relay adventure.

Only one participant—the Active Player—can play normally at a time. All other participants become spectators and follow the action. When the configurable timer reaches zero, another player is randomly selected to take over.

The relay continues until the Ender Dragon is defeated.

Features

• Randomly selects an Active Player
• Automatically rotates players after a configurable duration
• Supports hours, minutes, and seconds
• Displays the remaining time using a Boss Bar
• Allows administrators to pause, resume, stop, or force the next rotation
• Places all inactive participants in Spectator Mode
• Prevents spectators from travelling too far away from the Active Player
• Supports cross-dimensional spectator following
• Automatically handles players joining or disconnecting
• Restores each participant's original game mode when the challenge ends
• Optionally transfers the inventory, hotbar, armor, and offhand items to the next player
• Preserves the challenge state across server restarts
• Automatically pauses the relay when the Ender Dragon is defeated

Death Counter Sidebar

The sidebar displays every visible participant and their number of deaths during the current challenge.

[ACTIVE] Player1 (0)
[BACKUP] Player2 (1)
[BACKUP] Player3 (0)

• The Active Player is displayed in green
• Backup players are displayed in gray
• The Active Player always appears at the top
• Death statistics reset when a new challenge begins
• The sidebar updates automatically after every rotation

Minecraft's sidebar can display a maximum of 15 entries, so only 15 participants can be shown at once.

Ender Dragon Celebration

When the Ender Dragon is defeated:

• The automatic relay system is paused
• The dragon slayer's name is announced in chat
• A title and subtitle are shown to every player
• Challenge completion sounds are played
• Three waves of colorful fireworks are launched around the dragon slayer
• The Boss Bar displays the completed state

Installation

1. Download the datapack ZIP file.
2. Place it directly inside:

.minecraft/saves/<world>/datapacks

1. Do not extract the ZIP.
2. Enter the world and run:

/reload

1. Verify the installation with:

/function relay:help

Quick Start

Add every online player to the challenge:

/function relay:player/join_all

Set each turn to 10 minutes:

/function relay:config/time {hours:0,minutes:10,seconds:0}

Set the maximum spectator distance to 64 blocks:

/function relay:config/distance {blocks:64}

Start the challenge:

/function relay:start

Administration Commands

/function relay:help
/function relay:start
/function relay:pause
/function relay:resume
/function relay:rotate
/function relay:stop
/function relay:status

Player Management

Add yourself:

/function relay:player/join

Add a specific player:

/execute as <player> run function relay:player/join

Add every online player:

/function relay:player/join_all

Remove yourself:

/function relay:player/leave

Remove a specific player:

/execute as <player> run function relay:player/leave

Clear the participant list:

/function relay:player/leave_all

The participant list can only be changed while the challenge is stopped.

Configuration

Turn Duration

/function relay:config/time {hours:1,minutes:30,seconds:0}

Valid values:

• Hours: 0–999
• Minutes: 0–59
• Seconds: 0–59
• The total duration cannot be zero

Spectator Distance

/function relay:config/distance {blocks:64}

Valid range: 1–100000 blocks.

Shared Inventory

Shared Inventory Mode is disabled by default.

Enable it with:

/function relay:config/inventory_on

Disable it with:

/function relay:config/inventory_off

When enabled, the outgoing player's inventory, hotbar, armor, and offhand item are transferred to the next Active Player.

Warning: Shared Inventory Mode overwrites the incoming player's existing items. Empty all participant inventories or create a world backup before enabling it.

Compatibility

• Minecraft: Java Edition 26.1
• Data Pack Format: 101.1
• Works in vanilla Minecraft
• Compatible with Fabric
• No resource pack is required
• Multiplayer recommended
• Operator permissions are required for administration commands

Important Notes

• Use /function relay:stop before removing or updating the datapack.
• Back up your world before enabling Shared Inventory Mode.
• Player deaths do not immediately trigger a rotation.
• If the Active Player disconnects, another online participant is selected automatically.
• If no participants are online, the timer is paused.
• Players joining during an active challenge become spectators and are added to future rotations.

【主体】玩家1 (0)
【替补】玩家2 (1)
【替补】玩家3 (0)

.minecraft/saves/<世界名称>/datapacks

/reload

/function relay:help

/function relay:player/join_all

/function relay:config/time {hours:0,minutes:10,seconds:0}

/function relay:config/distance {blocks:64}

/function relay:start

/function relay:help
/function relay:start
/function relay:pause
/function relay:resume
/function relay:rotate
/function relay:stop
/function relay:status

/function relay:player/join

/execute as <玩家> run function relay:player/join

/function relay:player/join_all

/function relay:player/leave

/execute as <玩家> run function relay:player/leave

/function relay:player/leave_all

/function relay:config/time {hours:1,minutes:30,seconds:0}

/function relay:config/distance {blocks:64}

/function relay:config/inventory_on

/function relay:config/inventory_off