creative-hit-mod

Creative Hit Mod

A Fabric client-side mod for Minecraft 1.21.11

In vanilla Minecraft, attacking a player in Creative mode does nothing — Creative players are invulnerable by default. This mod changes that: when you hit a Creative-mode player, the mod sends the /damage <target> 1 generic_kill command to the server, dealing 1 point of unavoidable damage.

How it works

1. You hit another player who is in Creative mode.
2. The mod intercepts this via a Mixin into ClientPlayerInteractionManager#attackEntity.
3. It sends a CommandExecutionC2SPacket with the command damage <target> 1 generic_kill directly to the server.
4. The server executes the command, dealing 1 HP of generic_kill damage — this bypasses Creative invulnerability, armor, and resistance effects.

Why this approach?

The mod uses CommandExecutionC2SPacket (not sendChatCommand) to bypass Minecraft’s chat signing system. Modern Minecraft signs chat commands with cryptographic keys; sending the packet directly avoids any signing failures or silent drops.

Permission checks are left to the server — if you’re not OP’d, the server simply rejects the command.

Requirements

| Requirement | Version |
|—|—|
| Minecraft | 1.21.11 |
| Fabric Loader | ≥0.16.x |
| Fabric API | Any compatible release |

Installation

1. Install the Fabric Loader for Minecraft 1.21.11.
2. Place the mod JAR in your mods/ folder.
3. Ensure you are OP’d on the server (/op <yourname>), or that cheats are enabled in singleplayer.
4. That’s it — no configuration needed.

Permissions

The /damage command requires GAMEMASTERS permission level (OP level 1+). The mod does not check permissions client-side — it sends the packet and lets the server enforce access.

• Singleplayer: Always enabled (cheats implicitly on).
• Server: You must be an operator (/op). The default /op level (permission level 2 → OWNERS) is more than sufficient.

Technical details

• Client-side only: The mod runs entirely on the client via a Mixin. No server-side installation is required.
• Damage type: minecraft:generic_kill — tagged with BYpASSES_INVULNERABILITY and BYPASSES_RESISTANCE. Deals 1 HP per hit regardless of Creative mode, armor, or potion effects.
• Packet: Uses CommandExecutionC2SPacket directly to avoid Minecraft’s chat signing layer.

Building from source

./gradlew build

The built JAR will be in build/libs/creative-hit-mod-<version>.jar.

License

MIT