Pathfinder Roleplaying Game
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Chapter: Environment
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42 rules pages

Name Section Page Description
Environment Rules 408 From the lifeless desert to the trap-filled dungeon, the environment helps to define the world. Bringing...
Dungeons 410 Of all the strange places that an adventurer might explore, none is deadlier than the dungeon. These...
Types of Dungeons Dungeons 410 The four basic dungeon types are defined by their current status. Many dungeons are variations on these...
Dungeon Terrain Dungeons 410 The following rules cover the basics of terrain that can be found in a dungeon.
Walls Dungeon Terrain 410 Masonry walls—stones piled on top of each other, usually but not always held in place with mortar—often...
Floors Dungeon Terrain 411 As with walls, dungeon floors come in many types.
Doors Dungeon Terrain 412 Doors in dungeons are much more than mere entrances and exits. Often they can be encounters all by...
Cave-Ins and Collapses (CR 8) Dungeon Terrain 415 Cave-ins and collapsing tunnels are extremely dangerous. Not only do dungeon explorers face the danger of...
Slimes, Molds, and Fungi Dungeon Terrain 415 In a dungeon’s damp, dark recesses, molds and fungi thrive. For purposes of spells and other special...
Traps 416 Traps are a common danger in dungeon environments. From gouts of white-hot flame to hails of poisoned...
Elements of a Trap Traps 416 All traps—mechanical or magical—have the following elements: CR, type, Perception DC, Disable Device DC,...
Type Elements of a Trap 416 A trap can be either mechanical or magical in nature.
Trigger Elements of a Trap 417 A trap’s trigger determines how it is sprung.
Effect Elements of a Trap 418 The effect of a trap is what happens to those who spring it. This often takes the form of either damage or...
Miscellaneous Trap Features Elements of a Trap 419 Some traps include optional features that can make them considerably more deadly. The most common features...
Sample Traps Traps 420 The following sample traps represent just some of the possibilities when constructing traps to challenge...
Designing a Trap Traps 423 Designing new traps is a simple process. Start by deciding what type of trap you want to create.
Wilderness 424 Outside the safety of city walls, the wilderness is a dangerous place, and many adventurers have gotten...
Getting Lost Wilderness 424 There are many ways to get lost in the wilderness. Following an obvious road, trail, or feature such as a...
Forest Terrain Wilderness 425 Forest terrain can be divided into three categories: sparse, medium, and dense.
Marsh Terrain Wilderness 427 Two categories of marsh exist: relatively dry moors and watery swamps. Both are often bordered by lakes...
Hills Terrain Wilderness 427 A hill can exist in most other types of terrain, but hills can also dominate the landscape. Hills terrain...
Mountain Terrain Wilderness 428 The three mountain terrain categories are alpine meadows, rugged mountains, and forbidding mountains.
Desert Terrain Wilderness 430 Desert terrain exists in warm, temperate, and cold climates, but all deserts share one common trait: little rain.
Plains Terrain Wilderness 431 Plains come in three categories: farms, grasslands, and battlefields. Farms are common in settled areas,...
Aquatic Terrain Wilderness 432 Aquatic terrain is the least hospitable to most PCs, because they can’t breathe there. Aquatic terrain...
Urban Adventures 433 At first glance, a city is much like a dungeon, made up of walls, doors, rooms, and corridors. Adventures...
Urban Features Urban Adventures 433 Walls, doors, poor lighting, and uneven footing: in many ways a city is much like a dungeon. Some special...
Walls and Gates Urban Features 433 Many cities are surrounded by walls. A typical small city wall is a fortified stone wall 5 feet thick and...
Siege Engines Urban Features 434 Siege engines are large weapons, temporary structures, or pieces of equipment traditionally used in...
City Streets Urban Features 436 Typical city streets are narrow and twisting. Most streets average 15 to 20 feet wide, while alleys range...
Weather 437 Weather can play an important role in an adventure.
Rain, Snow, Sleet, and Hail Weather 438 Bad weather frequently slows or halts travel and makes it virtually impossible to navigate from one spot...
Storms Weather 438 The combined effects of precipitation (or dust) and wind that accompany all storms reduce visibility...
Winds Weather 439 The wind can create a stinging spray of sand or dust, fan a large fire, keel over a small boat, and blow...
The Planes 440 While endless adventure awaits out in the game—there are other worlds beyond these—other continents, other...
Environmental Rules 442 Environmental hazards specific to one kind of terrain are described in the Wilderness section....
Cold Dangers Environmental Rules 442 Cold and exposure deal nonlethal damage to the victim. A character cannot recover from the damage dealt by...
Darkness Environmental Rules 442 Darkvision allows many characters and monsters to see perfectly well without any light at all, but...
Falling Environmental Rules 443 Creatures that fall take 1d6 points of damage per 10 feet fallen, to a maximum of 20d6. Creatures that...
Heat Dangers Environmental Rules 444 Heat deals nonlethal damage that cannot be recovered from until the character gets cooled off (reaches...
Water Dangers Environmental Rules 445 Any character can wade in relatively calm water that isn’t over his head, no check required. Similarly,...