Free Fantasy RPG Encounter Generator
Generate balanced combat and roleplay encounters with auto-computed difficulty, terrain, objectives, and tactics. Built for D&D 5e, Pathfinder 2e, and Savage Worlds.
Campaign workbench
Build a D&D Encounter
Set the party, difficulty and environment. CharGen balances the opposition, terrain, objectives and possible outcomes together.
Browse published encountersGenerate a bundle of related content?
Build related people, places and encounters around one shared premise, with the relationships already connected.
Built into every result
What This D&D Encounter Generator Creates
Balance That Holds
Difficulty is computed deterministically per system and recomputed live whenever you change the foe list, so the meter never drifts from what is on the table.
Combat or Conversation
Pick combat for a tactical card with zones, objectives, and tactics, or roleplay for a social scene with goals, a clock, leverage, and disclosures.
Built From Your World
Link the Monsters, NPCs, Hazards, and Loot you already generated, and the encounter deep-links back to each so prep stays connected.
Practical guidance
How to Use the D&D Encounter Generator
The best encounters ask the party to make decisions beyond dealing damage. State the objective, the changing pressure and what failure alters in the campaign.
Give both sides a goal that can change during play.
Use terrain that creates choices rather than passive decoration.
Plan an outcome for success, retreat and partial failure.
Before you generate
D&D Encounter Generator Questions
Which systems are supported?
D&D 5e (2024 and 2014 rules), Pathfinder 2e, and Savage Worlds (SWADE). The first three compute an XP or point budget, and SWADE returns a ratio guide instead of a number.
How is difficulty calculated?
Deterministically by the tool, not the AI. Each system uses its own budget table plus a Lazy Benchmark second opinion on the d20 editions, recomputed every time the foe list changes.
Is the encounter generator free to use?
Yes. Generating an encounter is free for every account. Premium subscribers can also edit the generated encounter and use richer models for the supporting art.
The short answer
What is the CharGen Encounter Generator?
The CharGen Encounter Generator is an AI tool that builds run-at-the-table combat and roleplay encounters for tabletop RPG sessions in under 60 seconds. Each generated encounter includes a title, read-aloud opener, stakes, a foe list with roles and counts, a battlefield of zones and terrain levers, an objective, win and lose triggers, per-creature tactics, complications, and scaling notes for weaker or stronger parties.
Unlike static encounter tables, difficulty is computed deterministically by the tool, not the AI, so the meter always matches what is on the table. The first three systems return an XP or point budget plus a Lazy Benchmark second opinion, while Savage Worlds returns a ratio guide. Encounters link the Monsters, NPCs, Hazards, and Loot you already generated through the World Codex, export to PDF, and share as public crawlable pages. Generating an encounter is free for every account; premium subscribers can edit it after generation.
Compare alternatives
Compare generation depth, editing controls and how each tool fits into campaign prep. These field reports are based on current public features and hands-on testing.
How CharGen's encounter generator compares to other tools.
Alternatives to
Donjon
Donjon's free random generators are reliable but dated. I tested 6 alternatives covering NPCs, shops, dungeons, names, and visual content. Field report from April 2026.
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ChatGPT (for D&D)
ChatGPT can generate D&D content but has no game tooling around it. I tested 6 alternatives: AI generators with sheets, tokens, voice, and portrait gen. Field report from April 2026.
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LitRPG Adventures
I tested 5 LitRPG Adventures alternatives for AI-generated D&D content: NPCs, dungeons, encounters, settlements, and more. Real free tiers, broader workflows, and one purpose-built option. Field report from April 2026, pricing rechecked July 2026.
Read the field report