D&D 5e Encounter Math: XP Budgets and Party Levels
In Dungeons & Dragons 5th Edition, combat encounters are balanced using Experience Points (XP) budgets. Each character level has four difficulty thresholds: Easy (minor challenge), Medium (standard fight), Hard (dangerous), and Deadly (risk of character death).
To build an encounter, the Dungeon Master sums the thresholds of all party members to create the party's total XP budget. For example, a level 5 character has a Deadly threshold of 1100 XP. For a party of four level 5 characters, the Deadly budget is: \(\text{Budget}_{\text{Deadly}} = 1100 \times 4 = 4400\text{ XP}\). Any monster combination with an adjusted XP below this number is mathematically survivable.