Rules Index | GM Screen | Player's Guide

Chapter 2: Tools / Building Hazards / Offense

Designing Complex Hazards

Source Gamemastery Guide pg. 76
Unlike a simple hazard, a complex hazard can play the part of a creature in a battle, or can be an encounter all its own. Many of the concerns with damaging effects when designing a simple hazard don’t apply when designing a complex hazard. A complex hazard can apply its damage over and over again, eventually killing its hapless victim, and isn’t intended to be a quick-to-overcome obstacle.

Complex hazards have a lot more in common with creatures than simple hazards do, and you’ll see that a complex hazard’s statistics are similar to those of a creature. A good complex hazard often requires disabling multiple components or otherwise interacting with the encounter in some way. For instance, while the Core Rulebook’s poisoned dart gallery requires only one Thievery check to disable, the control panel is on the far end of the gallery, so a PC would need to make their way across first.

Building Routines

Source Gamemastery Guide pg. 76
A complex hazard has a routine each round, whether it stems from preprogrammed instructions built into a trap, instincts and residual emotions swirling around a complex haunt, or a force of nature like sinking in quicksand. Make sure to build a routine that makes sense for the hazard; an environmental lava chute that ejects lava into the area each round shouldn’t be able to seek out and precisely target only the PCs, but it might spatter random areas within range or everything within range, depending on how you describe the hazard. However, a complex haunt might be able to recognize life force and target living creatures.

If you create a hazard that can’t consistently attack the PCs (like the Core Rulebook’s blade pillar, which moves in a random direction), you can make it deadlier than normal in other ways.

The hazard should have as many actions as you feel it needs to perform its routine. If you split the routine out into several actions, you can also remove some of the hazard’s actions once partial progress is made in disabling or destroying it; this can give the PCs a feeling of progress, and it can encourage them to handle the hazard if it appears in a encounter alongside creatures.