CurseForge · Minecraft mod
Tunneler
Mod about custom and automatic tunnel digging and more...
Quick answer
Which Tunneler release should I use?
tunneler-1.2.1-1.20.1.jar targets 1.20.1 with Forge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is Tunneler required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does tunneler-1.2.1-1.20.1.jar need?
tunneler-1.2.1-1.20.1.jar. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add Tunneler without breaking your instance.
Built for tunneler-1.2.1-1.20.1.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use tunneler-1.2.1-1.20.1.jar. It targets 1.20.1 with Forge; 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
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside tunneler-1.2.1-1.20.1.jar. It opens that exact file at the source.
About this project
What does Tunneler add?
Are you bored of building long tunnels?
If so, don´t be, because this mod will take care of it.
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Latest patch notes:
New option: You can now additionaly choose to go up, down or forward when using custom route.
01/18/2026
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Discription:
This mod adds new machines that will make tunneling easier. Functioning of the machines is very simple, it´s all blocks moving forward or by your custom route and executing certain tasks. All machines require some kind of fuel.
You can change Redstone Torch and Powered Rails placement frequency in config file.
File version number explanation: [1.2.3] -> [(Great impact update).(Major changes).(Small fixes and patches)] - Read file changelog for more info
Miner Core

Builder Core

Iron Drill

Track
Power Supply

Diamond Drill

Iron Tunneler
Mines 1x2 tunnel
Uses Coal and Charcoal as fuel
All mined blocks are stored inside Tunneler storage

Diamond Tunneler
Works like Iron Tunneler, but mines 3x3 tunnele and uses Redstone as fuel instead

Railer
Is used indirectly with Tunnelers
Places Rails as it moves
When it registeres Torch Marker, it will replace it with Redstone Torch and imidatelly places Redstone Rail instead of normal one
All resources are taken from Railer storage, if Railer runs out of resources it will stop and sends message to the chat

Upgrades
Upgrades are used in Tunnelers
When Tunneler has upgrade, it not only mines tunnel, but also places Torch Markers
MK1 places marker right next to rail

MK2 places marker under rails so it stays hidden (more expansive to craft)

Starter Key
Item used for activating and deactivating all machines

Machine Manual
As mod got more complicated with update 1.2.0 I decided to add this useful item that explains everything important
Custom Routing
With 1.2.0 update you can from now on create custom routes for your machines! All you need to do is getting an empty Book and quill and type your route in correct format. For exmaple: 5;1;5;2;10;3;12;5;2 Explanation: MOVE 5, turn left, MOVE 5, turn right, MOVE 10, go down, MOVE 12, continue forward, MOVE 2
First and last position must be MOVE call. Every second position is direction change, 1 stands for LEFT, 2 stands for RIGHT, 3 stands for DOWN, 4 stands for UP and 5 is CONTINUE FORWARD. In between calls place ";" symbol. You can create seemingly endless routes with this, but make sure to have enough resources. When you are done with designing your custom route sign it with name "route.code". You can now RMB it on every machine in this mod before starting it. -If you place your custom route on any Tunneler with any Tunneler Upgrade inside of it, Tunneler will on start automatically create Railer marker on its starting point. -When Tunneler is done with his path, just destroy Railer Marker and place there your Railer and just like with Tunneler, RMB it with same "route.code" Book and it will exactly copy path of Railer. -If your machine runs out of resources in middle of completing its route, do not panic and DO NOT DESTROY IT, as the path is still in progres but paused, so just refill the resources and start it again.
I tried to patch as much errors as possible, but there might be chance, that some of you will discover new bugs, please let me know if you encounter anything.
Please stay up for any updates and thank you for your support.
Supported mod languages: English, Czech, German, Spanish.
Q & A:
*"Can I use your mod in my modpack?"*Yes, I would like to see this mod in your modpacks!
"Will there be support for FE and RE?"
For FE definitelly, but not yet sure about RE.
"Will there be Fabric and etc. versions?"
Currently no, I´m happy that I can even run it on Forge, maybe when I finish everything I´m planning for this mod.
Project description from CurseForge.
Pick your setup
Tunneler by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Tunneler versions and loaders
tunneler-1.2.1-1.20.1.jar
tunneler-1.2.1.jar
18 Jan 2026
tunneler-1.2.0-1.20.1.jar
tunneler-1.2.0.jar
19 Oct 2025
tunneler-1.1.3-1.20.1.jar
tunneler-1.1.3.jar
10 Aug 2025
tunneler-1.1.2-1.20.1.jar
tunneler-1.1.2.jar
9 Aug 2025
tunneler-1.1.1-1.20.1.jar
tunneler-1.1.1.jar
7 Aug 2025
tunneler-1.1.0-1.20.1.jar
tunneler-1.1.0.jar
6 Aug 2025
tunneler-1.0.0-1.20.1.jar
tunneler-1.0.0.jar
16 Jul 2025
Looking for an older file? The official CurseForge project page is in Resources.