It’s finally here: the third and final core book for 5e D&D – the Dungeon Master’s Guide. It also provides some details and considerations for how gunpowder and firearms work. provides details for Renaissance weapons: pistol, musket, bomb and smokebomb. The 3.5e Dungeon Master's Guide has some rules for firearms in the Building a Different World section (p144). If you’re planning to stick with 5e then there’s no question, you’ll.
It is 320 pages of everything I was expecting from the 5e DMG.
