creeperGriefing

A lightweight server side mod that adds a gamerule for creeper griefing, which prevents creeper explosions from destroying blocks if set to false. Damage is still dealt to entities.

Toggle with /gamerule creeperGriefing <true/false> (true by default)

You can use this mod in singleplayer! However, it must be installed server-side for it to work on dedicated servers.