Blastback

Explosions happen. The world rebuilds.

Blastback is a configurable Minecraft datapack that records blocks before an explosion and reconstructs the damaged area afterward—one block at a time.

Features

• Restores exact block states
• Preserves chest inventories and block-entity data
• Supports overlapping and chained explosions
• Combines nearby explosions into one restoration
• Prevents duplicated explosion drops
• Leaves pre-existing dropped items untouched
• Pauses rebuilding while nearby explosions are still active
• Supports configurable placement speed and intervals
• Provides per-dimension explosive controls
• Includes an interactive settings

Restoration animations

Choose how destroyed areas rebuild:

• Bottom-up
• Top-down
• East-to-west
• West-to-east
• North-to-south
• South-to-north
• Outside-in
• Inside-out
• Random

Supported explosions

Blastback can detect and rebuild damage caused by:

• TNT
• TNT minecarts
• Creepers and charged creepers
• Beds in invalid dimensions
• Respawn anchors in invalid dimensions
• End crystals
• Ghast fireballs
• Wither skulls

Each source can be enabled or disabled separately for the Overworld, Nether, End, and custom dimensions.

Settings

Use the included Blastback Settings book or run:

/trigger erb.settings set 1

You can configure:

• Rebuild delay
• Blocks placed per interval
• Placement interval
• Restoration animation
• Explosion sources
• Dimension profiles
• Chain-consumed TNT restoration
• Rebuild or drop mode
• Master enable/disable switch

Compatibility

Separate downloads are provided for:

• Minecraft Java Edition 1.21.1
• Minecraft Java Edition 26.2

Use the file made specifically for your Minecraft version.

Performance notice

Blastback prioritizes reliable capture and restoration. Large or highly simultaneous explosions can temporarily increase server load. Server owners should select sensible restoration settings for their hardware.

Credits

Inspired by Scommander’s original Explosion Rebuilder Datapack. Blastback is an independently developed modern rewrite.