Every Villain
Every Session
Every Player
Organized for YOU

Free for your players. Built for the DM who runs the world.

The definitive toolkit for Dungeon Masters who weave intricate, D&D 5e campaigns. Manage lore, encounters, NPCs and world state without breaking immersion.

Start Your Campaign See How It Works
Nemesis Codex character sheet — a D&D 5e player's stats, attributes and skills

Villain Tracker

Monitor threat levels, intricate plots and minion networks. Never lose track of your antagonist's next move in the shadows.

Real-Time Sync

Changes to your grimoire reflect instantly across your devices. Keep the session flowing without frantic note-checking.

Spell Listener

Index and cross-reference spells and arcane lore during rapid combat. Search that feels like wielding true magic.

Built by a Dungeon Master, for Dungeon Masters

A Complete Grimoire

Character Management

Track PC stats, conditions and passive perception at a glance.

Initiative Tracker

Fluid combat sequencing with automated turn reminders.

Session Recap with AI

Generate atmospheric summaries from your session notes instantly.

Campaign Calendar

Manage time-tracking, travel and custom world events.

Encounter Builder

Balance CR ratings and spawn minions on the fly.

NPC & Faction Tracker

Map out loyalties, secrets and interconnected relationships.

Built for gaps the others left.

VTTs handle maps. Campaign tools handle lore. Nobody built both in one mobile-friendly app — until now.

Feature comparison: Nemesis Codex versus Roll20 or Foundry, World Anvil, and D&D Beyond.
Feature Roll20 / Foundry World Anvil D&D Beyond Nemesis Codex
Combat & initiative tracker Yes No Partial Yes
Campaign & NPC management Partial Yes No Yes
Built for physical tables No No No Yes
Free player character sheets Partial No Paid content Yes — Always free
Villain progression system No No No Yes
Custom world calendar No Yes No Yes
Session recaps No Partial No Yes
Lifetime one-time option Foundry $50 No No Yes — $150
Mobile-friendly DM interface No Partial Partial Yes

Choose Your Path

Free for your players. Built for the Dungeon Master who runs the world.

Monthly Rite

$8 / month

Cancel anytime.

  • Unlimited villains, NPCs & factions
  • Encounter builder + live initiative tracker
  • Monster codex, spell & item libraries
  • Your players join free on their phones
Best Value

Yearly Pact

$60 / year

Save $36 a year — over 4 months free

  • Everything in the Monthly Rite
  • Run multiple campaign worlds
  • AI session recaps & the live spell listener
  • World calendar, lore & relationship maps
  • Homebrew races, classes, spells & items

Eternal Ascendance

$150

Pay once. Reign forever.

  • Everything, forever — no subscription
  • Every future update included
  • Early access to new features
  • A founder’s badge on your worlds
Players always join free No per-player fees, ever Built for the table, not just the screen

Already have a beta code? Open the Codex, create your account, then enter your code there to unlock it. You only enter the code once.

Enter the Codex

Common Questions

Do my players have to pay?

Never. Players get free access on their phones to their own character sheet, inventory, spells and notes. Only the Dungeon Master running the world needs a plan.

Can I cancel anytime?

Yes. The monthly and yearly plans cancel whenever you like from your account, and you keep full access through the end of the period you’ve paid for.

How does lifetime access work?

One payment and Nemesis Codex is yours for good, with every future update included and no recurring charge ever.

What happens to my worlds if I stop paying?

Your campaigns are never deleted. Your data stays safe in the cloud, and you can pick a plan back up anytime to keep editing right where you left off.