Free
$0
- 50K tokens per month
- Up to 15 NPCs
- Unlimited Chat Threads
Continuity across your Whole cast.
Built for solo roleplayers, AI-native GMs, and writers who need original characters to remember the same world.
Prosopeion takes its name from the ancient Greek word for a theatrical mask: a persona through which a character speaks.
Persistent Character Memory
Keep long-running conversations coherent. Characters carry forward the memories that matter instead of starting from zero each time.
One Shared World
Add your setting, factions, events, and secrets once. Your cast draws from the same campaign knowledge while keeping distinct loyalties and voices.
Your Characters First
Import characters you already created, write them by hand, or ask AI to help fill gaps. You decide what belongs in your canon.
Relationship Mapping
Connect allies, rivals, families, and factions. Relationships shape what each character knows and how they respond.
Mass Import
Bring an existing cast from a spreadsheet, DOCX, or text file instead of rebuilding your world character by character.
How it works.
Three steps from your existing ideas to a world that keeps its history.
1
Bring your cast
Create characters by hand or import an existing roster. AI-assisted character design is available when you want help filling gaps.
2
Connect your world
Add lore, factions, and relationships so every character has the same foundation and a different point of view.
3
Build history together
Talk in character, save meaningful memories, and return later without rebuilding the context of your story.
Try it Right now.
See campaign-aware AI character chat in action. No sign-up required.
The sealed tomb of Asterion
Peanut hired you to help rob it. Keira has heard troubling rumors at her bar, and Nala warned the city never to open its doors. Ask each character what they know and decide whose version you trust.
Start with the shared secret, or ask Peanut the Rogue your own question. No account needed.
Start free. Grow your World later.
Every plan includes character chat, campaign knowledge, relationships, and memory. Paid plans increase monthly AI usage.
Noble
€3/mo
or €30/yr billed yearly
- 1M tokens per month
- Everything in Free
- Room for daily campaigns
Kingsman
€4/mo
or €40/yr billed yearly
- 5M tokens per month
- Everything in Pro
- Helps support the project
- For heavy worldbuilders
Token allowances reset each calendar month. Subscriptions renew automatically until cancelled. See the terms for billing details.
Know what happens to Your world.
Prosopeion is AI-powered software for adults. We want the model and data flow to be understandable before you sign up.
AI usage
Character replies and optional character-design tools use Google's AI models. Your relevant character, campaign, relationship, memory, and chat context is sent to Google to generate a response.
Your canon stays yours
Import or write your own characters and lore. AI output can be wrong or inconsistent, so you choose what becomes part of your world.
Delete your data
You can delete NPCs and chat threads inside the app. To request deletion of your account and associated stored data, email info@dunhound.com from your account address.
Read the full privacy & data explanation and terms.
Before relying on long-running continuity, read exactly howmemory works and where it can fail.