Hello! I am currently working on a mod that will make Creeper Explosions attract hostile mobs at night time. Depending on what difficulty you play on, it will attract a number of mobs ranging from 3 to 7. It will make the Creepers one heck of an enemy to tick off.
Peaceful - No Hostile Mobs
Easy - Hostile Creepers do NOT attract attention once exploded
Normal - Hostile Creepers attract some attention once exploded
Hard - Hostile Creepers attract a lot of attention and explosion is louder