Ore Respawn makes mining sustainable. When you break an ore, it regenerates after a configurable delay so caves and veins stay useful over long play sessions.

Features

Respawns any block tagged as an ore (c:ores / NeoForge ore tags)
Configurable respawn delay (default: 5 minutes)
Optional bedrock placeholder while waiting — marks the spot and blocks re-mining until the ore returns
Instant mode: set the delay to 0 and ores regenerate immediately
Survives world reloads — pending respawns are saved and resume correctly
You still get the normal ore drops

Configuration

Edit the common config (orerespawn-common.toml) or use the in-game config screen:

Option	Default	Description
`respawnDelaySeconds`	`300`	Seconds before the ore respawns (`0` = instant)
`useBedrockPlaceholder`	`true`	Replace mined ores with bedrock until they respawn

Requirements

Minecraft 1.21.1
NeoForge

How it works

Mine an ore as usual. After the break, the mod either restores the ore right away (instant mode) or places a placeholder and schedules the original block to return. Pending respawns are stored with the world, so they continue after a restart.

Great for SMP servers, skyblock-style worlds, or any playthrough where you want renewable resources without changing recipes or worldgen.

Ore Regeneration -> Bedrock Replace (or not)