
Modrinth · Minecraft mod
NPCs engine
Interactive NPC system with dialogues for Minecraft 1.21.9+
Quick answer
Which NPCs engine release matches 26.1.2?
NPCs engine v1+mod targets 1.21.10, 1.21.11, 1.21.9 with Fabric, Forge, NeoForge. Installation on the client is optional. Installation on the dedicated server is optional. No extra mods listed for this file.
Where it goes
Is NPCs engine required on the client, server, or both?
Installation on the client is optional. Installation on the dedicated server is optional.
The source marks this as usable on both the client and server.
What else does NPCs engine v1+mod need?
v1+mod on 26.1.2. Every mod below is checked against that same setup.
This file does not list any required mods. Do not add a library just because a different file uses it.
1 extra mod was pulled in by another dependency. Indented rows show who needs each one. We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add NPCs engine without breaking your instance.
Built for NPCs engine v1+mod on 26.1.2. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use v1+mod. It targets 1.21.10, 1.21.11, 1.21.9 with Fabric, Forge, NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
Installation on the client is optional. Installation on the dedicated server is optional.
- 04
Pick the file you checked
Use the “Get this file” button beside v1+mod. It opens that exact file at the source.
About this project
What does NPCs engine add?
NPC Engine
Interactive NPC system with dialogues for Minecraft 1.21.9+
NPC Engine is a data pack for creating NPCs with a dialogue system, response options, and a cinematic camera.
🎯 Features
NPCs
- Mannequins — NPCs based on
minecraft:mannequinwith custom skins - Other Entities — Villagers, zombies, skeletons, etc.
- Interactivity — Clicking on an NPC starts a dialogue
- Visual Editor — Control via the action bar
Dialogues
- Typewriter Effect — Smooth character-by-character typing
- Choice System — Branching dialogues with multiple answer options
- Navigation — Shift to skip to the next line
- Text Display — Text is displayed above the NPC
Camera
- Cinematic Mode — Automatically zooms in on the NPC
- Positioning — The camera is positioned to the side of the NPC
- Smooth Transitions — Blindness effect at the start/end Dialogue
- Restore — automatically returns the player to their starting position
🚀 Installation
- Place the
npcs-enginefolder in your world'sdatapacks - Run
/reload
📋 Usage
Open the Editor
/function _npsc:open
Editor Controls
- Mouse Wheel — Navigate the menu
- RMB (carrot on a fishing rod) — Select an item
Editor Menu
| Item | Description |
|---|---|
| 📝 Create NPC | Create a new NPC |
| 📋 List | View all NPCs |
| 💬 Dialogues | Dialogue Editor |
| 🎬 Dialogue Test | Run a Dialogue Test |
| ❌ Exit | Close Editor |
Interacting with NPCs
- Click on the NPC to start a dialogue
- Shift — next line
- The dialogue ends automatically after the last line
🔧 API for Developers
Creating an NPC
# Create a mannequin NPC
function npcs:npc/create_player
# Create an NPC entity
function npcs:npc/create_entity
Dialogue Management
# Add a dialogue line
function npcs:dialog/editor/add_line {npc_id:1,text:"Hello, traveler!"}
# Add a choice
function npcs:dialog/editor/add_choice {npc_id:1,text:"Where shall we go?",choices:["North","South"]}
# Start a dialogue programmatically
function npcs:dialog/start_play
Data Storage
- Storage
npcs:data— NPC and dialogue data - Storage
npcs:current_dialog— currently active dialogue
📋 Requirements
- Minecraft: 1.21.9+
- Permissions: Operator for editor commands
🎮 Example: Quest NPC
# 1. Create an NPC
function npcs:npc/create_player
# 2. Add dialogues (npc_id = 1)
function npcs:dialog/editor/add_line {npc_id:1,text:"Greetings, hero!"}
function npcs:dialog/editor/add_line {npc_id:1,text:"I have something for you" task."}
function npcs:dialog/editor/add_choice {npc_id:1,text:"Will you accept it?",choices:["Of course!","Not now"]}
Create living worlds with the NPC Engine! 💬✨
Project description from Modrinth.
Pick your setup
NPCs engine by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.1.2
5 loader builds26.1.1
5 loader builds26.1
5 loader builds1.21.11
5 loader builds1.21.10
5 loader builds1.21.9
5 loader buildsCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
NPCs engine versions and loaders
v1+mod
npcs-engine-v1.jar
22 Apr 2026
v1
npcs-engine.zip
4 Dec 2025
Looking for an older file? The official Modrinth project page is in Resources.