Types of Surfaces
Very smooth surfaces include expanses of smooth, uncracked rock, flush-fitted wooden walls, and welded or bolted metal walls. Completely smooth walls, unbroken by any feature, cannot be climbed by anyone without tools.
Smooth and cracked walls include most types of well-built masonry, cavern walls, maintained castle walls, and slightly eroded cliff faces.
Rough faces are most natural cliffs, poorly maintained or badly built masonry, and typical wooden walls or stockades. Any natural stone surface is a rough face.
Rough with ledges is similar to rough faces but is dotted with grips three inches or more wide. Frost-eroded cliffs and natural chimneys are in this category, as are masonry buildings falling into ruin.
Ice walls are cliffs or faces made entirely of frozen ice. These are different from very smooth and smooth surfaces in that there are still many natural cracks and protrusions. They are extremely dangerous to climb, so a Climbing check should be made every round for any character attempting it without tools.
Trees includes climbs with an open framework, such as a scaffold, as well as trees.
Sloping walls means not quite clifflike but too steep to walk up. If a character falls while climbing a sloping wall, he suffers damage only if he fails a saving throw vs. petrification. If the save is made, the character slides a short distance but is not harmed.
Rope and wall require that the character uses a rope and is able to brace himself against a solid surface.
Actions While Climbing
Although it is possible to perform other actions while climbing, such as spellcasting or fighting, it is not easy. Spellcasters can use spells only if they are in a steady, braced position, perhaps with the aid of other characters.
Climbing characters lose all Armor Class bonuses for Dexterity and shield and most often have rear attack modifiers applied against them also. Their own attack, damage, and saving throw rolls suffer -2 penalties. Those attacking from above gain a +2 bonus to their attack rolls, while those attacking from below suffer an additional -2 penalty to their attack rolls.
Table 67:
Rates of Climbing
------------------ Surface Condition ----------------------
Type of Surface Dry Slightly Slippery Slippery
Very smooth * ¼ --** --**
Smooth, cracked * ½ 1/3 ¼
Rough * 1 1/3 ¼
Rough w/ledges 1 ½ 1/3
Ice wall -- -- ¼
Tree 4 3 2
Sloping wall 3 2 1
Rope and wall 2 1 ½
* Nonthief characters must be mountaineers and have appropriate tools (pitons, rope, etc.) to climb these surfaces.
** Thief characters can climb very smooth, slightly slippery surfaces at _. However, even thieves cannot climb very smooth, slippery surfaces.
A climbing character cannot use a two-handed weapon while climbing. The DM can overrule these penalties if he feels the player character has reached a place of secure footing. If struck while climbing (for any amount of damage), the character must make an immediate Climbing check. Failure for a roped character means he spends a round regaining his balance; an unroped character falls if he fails this check.