I have this feeling from dealing with the files beforehand that there is some way to turn creepers off, the same way I can mess around with the way some modpacks work. Is there some way I can for instance turn creeper spawn rate to zero or something? That would be lovely.
This is NOT a duplicate of the "how to stop creepers blow stuff up" questions. I asked how to make them disappear, and finally figured it out, using /gamerule domobspawn false to disable all mobs from spawning.
61 Answer
You could always play on Peaceful, which removes all hostile mobs from the game.
To remove just creepers, however, would require a mod of one kind or another.
Some of the links provided in the comments should help you out if that's your case. But if you just want to remove the 'hostile mobs' problem entirely, playing on peaceful is the easiest way to solve this.
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