Auto TNT Cart
Auto TNT Cart is a Fabric mod that automates the instant TNT minecart technique, placing a rail and a TNT minecart with one key press.
What it does
Pressing C runs the trick: the mod places a rail on the top face of the block being looked at, spawns a TNT minecart on it, and fires a flame arrow from a bow in the hotbar. The arrow strikes the minecart and sets off an instant explosion, so the classic manual sequence is completed in one action instead of several.
The hotbar must hold a rail, a TNT minecart, a bow enchanted with Flame and at least one arrow of any kind, whether normal, tipped or spectral. An Infinity enchantment is not needed to keep the bow working, since the arrow is consumed and still has to come from the hotbar. The mod requires Fabric API and Cloth Config API, and the key binding can be changed in the game settings.
The mod is published for Fabric only, across eight release versions 1.21.1 – 1.21.8, and the latest file is 2.0.0+1.21.8 for 1.21.8. The server and every player need the mod installed. It is released under the MIT License and is open source, with public source code and an issue tracker.
Key features
One-key instant TNT cart
A single press of C places the rail, spawns the TNT minecart and shoots the flame arrow in sequence.
Automatic rail placement
The mod places the rail on the top face of the targeted block, so the player does not have to line up the placement by hand.
Flame arrow ignition
The bow's Flame enchantment ignites the arrow, and a hit on the minecart triggers the explosion immediately.
Hotbar-based inputs
The rail, minecart, bow and arrow are all taken from the hotbar, which keeps the sequence to one key press.
Configurable key binding
The trigger key is set in the game's controls menu and can be changed to suit the player.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 2
How it compares
TNT Buff (Configurable) is server-side only, open source under the MIT License, and published for 1.21 – 1.21.11, so players join without installing it. TNT Cart Helper is also a client and server mod under the MIT License, but its files are only for 1.21.11, which is outside the range of Auto TNT Cart. Cart Counter and CartCounter are client-side only and do not automate the trick, so they serve a different purpose.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Auto TNT Cart | Fabric | 1.21.1 – 1.21.8 | Client and server | 2026-09-18 |
| TNT Buff (Configurable) | Fabric | 1.21 – 1.21.11 | Server-side only | 2026-02-01 |
| TNT Cart Helper | Fabric | 1.21.11 | Client and server | 2026-08-28 |
| Cart Counter | Fabric | 1.21 – 1.21.11 | Client-side only | 2026-02-26 |
| CartCounter | Fabric | 1.21.5 | Client-side only | 2026-01-18 |
Questions
Does Auto TNT Cart need Fabric API?
Does the bow need the Infinity enchantment?
Does the server need the mod for players to use it?
In the catalog
Auto TNT Cart is one of 8,499 Technology mods on ModsFinder, and one of 4,201 Technology mods for Fabric. 17,695 mods support Minecraft 1.21.8.
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What the author says
The arrow will hit the minecart immediately, causing an instant explosion – a smooth and fast execution of the classic "instant minecart" technique. If the bow has the Infinity enchantment, the arrow will not be consumed, but you still need at least one arrow in the hotbar to be able to shoot.
Official listing
- Modrinth page
- modrinth.com/mod/auto-tnt-cart
- Owner
- FrostPierce32
- Published
- 2026-03-31
- Updated on Modrinth
- 2026-09-18
- Facts verified
- 2026-10-15