FastTNT

Fast TNT BFS

Fast TNT BFS is a server-side performance optimization mod for Fabric 1.21.11.

Minecraft normally calculates TNT explosions using many overlapping rays, causing the same blocks to be checked repeatedly. This mod replaces that process with an efficient block wavefront algorithm, significantly reducing unnecessary calculations during large TNT explosions.

Features:

• Improves performance during large TNT explosions
• Each candidate block is checked only once
• Works in singleplayer and on dedicated servers
• Optional Mod Menu support
• Enable or disable the optimization at any time
• Choose between TNT-only or all-explosion optimization
• No Fabric API required
• Configuration is saved automatically

The optimized explosion shape may differ slightly from vanilla Minecraft, especially around corners and obstacles.

Requirements:

• Minecraft 1.21.11
• Fabric Loader 0.19.3 or newer
• Java 21
• Mod Menu is optional