Forge Creeper Heal is an excellent recovery tool from Creeper attacks. It simply rebuilds your structures after they’ve been damaged by Creepers. You will still take damage and they will still pose a risk to your realm but at least all is not lost with this mod installed.
The mod does a great job remembering the area affected by the blast and will attempt to rebuild with incredible accuracy.
Even better than simply repairing Creeper damage is that this mod will also heal damage from any explosion. So if you undergo a horrible TNT disaster, this mod will fix that hole over the course of about a day’s in-game time.
It doesn’t seem to matter how complex the structure is but it may have difficulty with blocks that behave like sand or gravel and doors. But those imperfections are more than made up for with the amount of damage control this mod can handle.