Tunnel TNT 3.2.1 by GoZeRuk

Tunnel TNT — Version 3.2.1

Ever wanted, to just dig a Really long Tunnel?

Tunnel TNT is an advanced utility TNT block for NeoForge, designed to generate clean, structured tunnels automatically while in Creative and remaining fully usable within Survival gameplay. Create tunnels of any size and length with a lining of your choice, add lights and/or support pillars. You can also have an outer lining and cap the ends of the tunnel, effectively allowing you to make rooms and more. You can change the thickness of the lining, and now in 3.2.1 and you can mine blocks, either leaving the blocks in the tunnel or dropping them as items, and you can save upto 4 different tunnel profiles.

Version 3.2.1 delivers major stability improvements, refined mechanics, and expanded configuration control, making this the most complete and reliable release to date.

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NEW  FEATURES

Version 3.2.1 Change Log

New Features

Added expanded tunnel shape controls with configurable dimensions and improved placement behaviour.

Added optional tunnel lining generation.

Added structural supports / beam generation.

Added automatic tunnel lighting placement with configurable spacing.

Added rail placement mode, including powered rail support.

Added bedrock destruction option (default OFF).

Added creator mode options for advanced generation control
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Added global settings and per-block saved settings support.

Added undo tunnel functionality.

Added tunnel start offset controls.

Added profile system with save/load support (Profiles 1–4).

Added dedicated keybinds for loading saved profiles.

Added on-screen confirmation for profile loads.

Slopes and Vertical Controls

Reworked vertical mode into three-way toggle:
OFF
SLOPE UP
SLOPE DOWN

Added step-count control (1–4).

Added segment-length control (1–100).

Added slope-aware support, lighting and rail adjustment.
Rail Improvements

Increased powered-rail maximum run to 9.

Added dynamic powered rail spacing for slopes/diagonals.

Improved downhill rail momentum handling.

Improved redstone placement conflict handling.

Improved diagonal rail pathing.

Support and Geometry Fixes

Corrected diagonal support pillar geometry to follow roof diagonals properly.

Improved support placement consistency on angled tunnels.

Improved tunnel geometry handling where dimensions change dynamically.

Lighting Improvements

Added separate light cluster Length and Height controls.

Improved inset/no-lining placement conditions.

Improved block-behind detection for valid light placement.

Crafting

Improved Tunnel TNT recipe flexibility.

Added mixed ingredient support (iron blocks and/or ingots).

Improved recipe book visibility compatibility.

Improved crafting reliability across supported versions.

User Interface

Added version/credits display in General tab.

Added row divider before version information
.
Improved version text scroll behaviour.

Reworked vertical toggle labels with uppercase states.
OFF state now shown in red.
Bedrock OFF state shown in red for consistency.

Corrected toggle label state handling.

Added profile keybind names improvements.

Fixed keybind category translation display.

Tooltips and UX

Improved tooltip timing and visibility behaviour.

Improved config screen interaction stability.

Preserved tuned UI layout and control spacing.

Added/maintained extended tunnel preview and helper feedback.

Internal / Technical

Improved multi-version compatibility support.
Updated loader/version metadata handling.

Improved asset and registration stability across versions.

Added unique file hash handling for release packaging.

Various stability fixes, bug fixes and performance improvements.

Current Version
Version: 3.2.1

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💣 Core Functionality

Tunnel TNT was something that I originally wanted as just a tool in creative mode, which you can still use it as, but I decided to add more features and make it craftable in survival might add some more features and crafting mechanics later. Tunnel TNT creates a pre-shaped, consistent tunnel when detonated, enabling fast excavation while maintaining controlled structure and predictable results.

Key behaviour includes:

Bind a Hotkey of your choice to access the Tunnel TNT Config menu
Automatic tunnel carving with clean geometry
Optional block lining, lighting, and structural detailing
Configurable and reliable generation behaviour
Practical use for mining routes, transport corridors, and large-scale builds
Can Dig Vertical
can change the shape of the tunnel Rectangle, Rigid Rectangle, Round and Triangle.

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🛠️ Quick Start

• 1.Install NeoForge for the supported Minecraft version.
• 2.Place the Tunnel TNT .jar into your mods folder.
• 3.Craft the block using the provided Survival recipe./Find block in inventory "Tunnel TNT" in Creative.
• 4.Place and activate Tunnel TNT to generate a structured tunnel instantly.
• 5.Adjust behaviour using the configuration menu or saved profiles.

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⚙️ setup and Control

In Creative Mode:

To use the Tunnel TNT Block open your inventory an type "tunnel tnt" , you will also need the flint & Steel.

you dont need to prime the Tunnel TNT Block with a redstone torch in creative mode you just right click with flint & Steel to active it once you made your settings.

To access the Tunnel TNT Config Menu use your set keybind key or right click the blocks front face and go to tunnel setting by clicking the tunnel settings button, or the mod menu settings in the minecraft game menu. Set up your tunnel settings and then just right click the Tunnel TNT Block with a Flint and steel.

The tunnel Direction is Indicated by the side with the star on it and the control face is the side with the dial.

 
Front Control Face 
Back- Tunnel Direction                                                                      

Tip: Remember the size of the tunnel is odd, so if you want the tunnel to line up with the ground, then for example if it was set to 29 high its always -1 (because of the tnt block) divided by two, so 29 -1 = 28 / 2 =14 + 1 = 15, so you would place the Tunnel TNT block at 15 high. 

In Survival Mode:

In survival mode you need to prime the Tunnel TNT Block with aRedstone Torch, Right  click the front face of the block with your hand or and block/item other than the flint & Steel, Once in the block UI insert a Redstone torch into the primer slot and click on tunnel settings button or your chosen hot key and set the tunnel how you would like then come out of ui and config and right click the front face with a Flint and Steel when you what to activate.you cannot activate without the Redstone torch inserted into the block in Survival.

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Tunnel TNT Block UI


Tunnel TNT Config

The Tunnel TNT Block Recipe is a Iron Block or Iron Ingot, Gunpowder, Redstone dust, Redstone Block or Red stone Torch.The gunpowder is always central, the Redstone whichever one you choose is center bottom, and the Iron block or Ingot around sides and top, Examples below.

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Block Recipe

Block Recipe

Block Recipe

Block Recipe

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🔄 Version Support

Tunnel TNT 3.2.1 is currently available for all NeoForge Versions

Builds for additional Fabric and Forge Minecraft versions are planned and will be compiled and released very soon.

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🛟 Support & Feedback

If you encounter bugs, balance issues, or unexpected behaviour, please report them through the project’s issue or comment system.    [email protected]

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❤️ Support the Project

If you enjoy NoClip Neo:
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Share feedback and suggestions
Help shape future features and improvements

Your support helps expand the mod to more versions and capabilities.