TTRPG
How do I handle surprises as a DM in D&D and other tabletop RPGs?
Okay, so you're running a D&D game.
Off Topic: Edition wars in RPGs are pointless and miss the true point of playing those games
Okay, let me just get it out of the way up front -- I've never liked any RPG published as much as I liked the boxed Dungeons and Dragons basic set when I got it in the early 80s.