Tight Fit

Kobolds are tiny little buggers. Which is probably one of their understated strengths. Their tunnels should be small and cramped, and difficult for Medium-sized heroes to comfortable fit inside. It’s the kind of terrain built for long spears rather than swinging swords and axes. While main corridors might be larger, small tight entrances and exists make a lot of sense. After all, when the adventurer is stuck in the hole, half of them is a pretty easy target. You don’t want to know what’s happening on the inside of that mount….