Flagstone: Like
masonry walls,
flagstone floors are made of fitted stones. They are usually cracked and only somewhat level. Slime and mold grows in these cracks. Sometimes water runs in rivulets between the stones or sits in stagnant puddles.
Flagstone is the most common dungeon floor.
Uneven Flagstone: Over time, some floors can become so uneven that a DC 10
Balance check is required to
run or
charge across the surface. Failure means the character can't move in this round. Floors as treacherous as this should be the exception, not the rule.
Hewn Stone Floors: Rough and uneven, hewn floors are usually covered with loose stones, gravel, dirt, or other debris. A DC 10
Balance check is required to
run or
charge across such a floor. Failure means the character can still act, but can't
run or
charge in this round.
Natural Stone Floors: The floor of a natural cave is as uneven as the
walls. Caves rarely have flat surfaces of any great size. Rather, their floors have many levels. Some adjacent floor surfaces might vary in elevation by only a foot, so that moving from one to the other is no more difficult than negotiating a
stair step, but in other places the floor might suddenly drop off or rise up several feet or more, requiring
Climb checks to get from one surface to the other. Unless a path has been worn and well marked in the floor of a natural cave, it takes 2 squares of
movement to enter a square with a
natural stone floor, and the DC of
Balance and
Tumble checks increases by 5. Running and charging are impossible, except along paths.