PF2e Hazards - Trap & Hazard XP Calculator
Hazards in Pathfinder 2e spend from the same XP budget as monsters, and the split matters: a complex hazard at party level costs the full 40 XP, while a simple hazard costs 8 XP. Add traps, haunts, and creatures to one budget below and see the difficulty move. Fighting monsters only? Use the encounter builder instead.
Encounter Difficulty
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How Hazard XP Works
A complex hazard - one that rolls initiative and acts every round - costs the same XP as a creature of its level. A simple hazard goes off once and costs one fifth as much. At party level that is 40 XP for a complex hazard and 8 XP for a simple one, so a single trap rarely reshapes a budget on its own.
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Hazard & Creature XP - Party Level 5
| Diff | Level | Creature / Complex | Simple Hazard |
|---|---|---|---|
| -4 | 1 | 10 XP | 2 XP |
| -3 | 2 | 15 XP | 3 XP |
| -2 | 3 | 20 XP | 4 XP |
| -1 | 4 | 30 XP | 6 XP |
| +0 | 5 | 40 XP | 8 XP |
| +1 | 6 | 60 XP | 12 XP |
| +2 | 7 | 80 XP | 16 XP |
| +3 | 8 | 120 XP | 24 XP |
| +4 | 9 | 160 XP | 32 XP |
How Hazard XP Works in Pathfinder 2e
Hazards draw on the encounter XP budget exactly as creatures do, with one split that decides the price. A complex hazard rolls initiative and acts every round, so it costs the same XP as a creature of its level: 40 XP at party level, 160 XP at party level +4. A simple hazard fires once and is done, so it costs one fifth as much: 8 XP at party level, 32 XP at party level +4.
That ratio is worth internalising, because it is the difference between scenery and a threat. A pit trap the rogue eats once is 8 XP of your budget and will not meaningfully change the fight. A rune-carved pillar that blasts the room every round is 40 XP and belongs in your planning the way a whole extra monster would.
Mixed encounters are where this pays off. A dungeon room with a collapsing ceiling (complex, party level) and two guards (level -1 each) totals 40 + 30 + 30 = 100 XP, which is a Severe fight for three players and a Moderate-plus one for four. Add all three below and the party size adjustment is applied for you.
A hazard's DCs come from its level, not from your instinct about how sneaky the trap feels. Take the level to the DC by level table and you have the Reflex save, the Perception DC to spot it, and the Thievery DC to disable it. A level 7 hazard sits at DC 23 across the board. Shift one of the three with the Hard (+2) or Easy (-2) adjustment when a trap should be, say, well hidden but simple to jam.
Building hazards from scratch works the same way. Choose the level, pull damage and defences from the Building Hazards tables in the GM Core, decide whether it acts once or every round, and spend the matching XP. Creature-shaped guardians are often easier to build on the creature stats tables instead.
Hazard Questions GMs Ask Most
How much XP is a hazard worth in Pathfinder 2e?
A complex hazard is worth the same XP as a creature of its level: 40 XP at party level, 60 at party level +1, 160 at party level +4. A simple hazard is worth one fifth of that, so 8 XP at party level and 32 XP at party level +4. Hazards more than four levels below the party contribute nothing.
What is the difference between a simple and a complex hazard?
A complex hazard rolls initiative and takes actions every round, like a collapsing bridge or an animated guardian statue. A simple hazard triggers once and resolves, like a poisoned needle or a falling block. That difference is why a complex hazard costs five times the XP: it keeps fighting.
What DC should a hazard use?
Take the hazard's level to the DC by level table. A level 7 hazard uses DC 23 for its Reflex save, its Perception DC to spot it, and its Thievery DC to disable it, adjusted up or down when one of those should be notably harder than the others.
How do you build a hazard in PF2e?
Pick a level, then take the hazard's statistics from the Building Hazards tables in the GM Core rather than inventing them. Level sets its Stealth DC to notice, its disable DC, its saves, and its damage. Choose simple or complex based on whether it acts once or every round, then spend the matching XP from your encounter budget.
Can you mix creatures and hazards in one encounter?
Yes, and it is one of the better ways to make a fight memorable. Add both to a single XP budget: a complex hazard at party level plus two creatures at party level -1 comes to 40 + 30 + 30 = 100 XP, a Severe encounter for a party of three. The calculator on this page totals mixed encounters for you.