Encounter Builder
Build and balance D&D encounters — add monsters, set party size and level, and see real-time difficulty ratings.
Party Configuration
Party Size
Party Level
Random Encounter
Generate a balanced random encounter for your party based on difficulty.
Add Monsters
Encounter Summary
Raw XP
0 XP
Multiplier
×1
Adjusted XP
0 XP
Easy
100
Medium
200
Hard
300
Deadly
400
D&D 5e Encounter Builder & Generator
Balance your next fight with a free D&D 5e encounter builder. Set your party size and level, add monsters, and the tool calculates the XP budget and difficulty, scaling correctly for multiple creatures. Need inspiration fast? The built-in random encounter generator suggests ready-to-run fights in a click. It works in the browser for prep at home or quick calls at the table. Built by a professional DM in Thessaloniki — if you would rather face encounters than build them, book a session and let me bring the monsters.
Frequently asked questions
- How does it calculate difficulty?
- Enter your party's size and levels, then add monsters by challenge rating. The builder totals the adjusted XP and rates the fight as easy, medium, hard, or deadly.
- Can it generate random encounters?
- Yes. The random encounter generator suggests a balanced group of monsters for your party with one click, perfect for improvising fights or filling out a session quickly.
- Is it free to use?
- Completely free and browser-based, with no sign-up. Build and tweak as many encounters as you like on desktop or mobile during prep or live at the table.
Want a real DM to run this at your table?
These free tools are built by a professional Dungeon Master in Thessaloniki. If you'd rather play than prep, book an in-person D&D 5e session and let an experienced GM handle the rest.
Book a session