Fear not the big booms

tl;dr: no need to be afraid of early-modern fire-arms in your campaign longstanding question about guns in D&D - my experiences no need to worry too much. I have had gunpowder crop up in two campaigns so far - Spelljammer Light of Xaryxis and Hexcrawl25 Realm of the Reluctant King - and in neither did it wreck the campaign. First and most simply - one of the party was a musket armed Giff in the Spelljammer game and they played the part of a sniper par excellence - but no moreso than the long-bow wielding elf I adventured alongside in Out of the Abyss. Campaign took place in wildspace/on planets and in any case I was playing the campaign as written so no phlogiston nor the ignition risk of gunpowder associated with that. All in all, it was wholly a flavour thing beyond one trap made out of gunpowder barrels. The players even made fairly large scale anti-shipping contraptions they launched with some spiky trap things included but never tried to acquire or incorporate gunpowder for…