between sessions
Will this fight kill them? Answered before you run it
Encounter difficulty for your actual party, in 2014 or 2024 rules. Type the monsters, get the verdict.
Card required · $3.99/month for all fifteen tools · cancel any time
Encounter building is the most tedious half-hour of prep in fifth edition. XP budgets per character, challenge ratings converted to XP, and — in the 2014 rules — a multiplier that depends on how many monsters there are, because six goblins are worse than their arithmetic suggests. It is all lookup tables, and it is all done by hand on a Sunday night.
Type the monsters you had in mind and their challenge ratings. It rates the fight against the party already in your session, and shows its working — thresholds, raw XP, the multiplier — so you can disagree with it on the evidence rather than just distrust it.
- Rated against your party, not a generic one
- 2014 and 2024 rules, switchable — they are different systems
- Any monster, including homebrew: it needs a CR, not a bestiary
- One button sends the whole fight to the Initiative Tracker
It doesn't come alone
Encounter Builder is one of fifteen tools in a single $3.99/month subscription, and they share a party.
Session Generator
Three hours to game and no plan. Press the button.
Session Prep Sheet
The shape of one evening, on one page. Threads carry over.
Treasure Generator
CR-appropriate treasure with flavour text, ready to paste into your VTT.
NPC Generator
The player asked the barkeep's name. You have eight seconds.
Puzzle Generator
A runnable encounter with read-aloud text, DCs and a hint ladder.