As someone who is a lore curious, deductive type of player, the phrase “roll investigation on the room” weighs heavily upon me from years playing and running 5e. The following suggestions (especially the rules concept at the end) are not intended to be universal, rather justified for a particular combination of players, setting and campaign premise. So, there’s been murder. Or a kidnapping. Or a theft. You get the idea. Most player dice rolls in TTRPGs are either to: Avoid failure (savi...