Dungeons & Dragons is as intimidating as it is freeing. On one hand, you have a game that’s only limited by your imagination — and a big book o’ rules, which you’re free to disregard as you see fit. On the other hand, if you’re the Dungeon Master, you have to walk a tricky tightrope.

It’s important to give your players the freedom they need to be crazy and creative, but you also need to restrain them a bit so you can actually complete the campaign or story line you’re attempting to play.