Your Personal GameMaster!
Play role-playing games from anywhere at any time!
Wolfgang is a small open source AI Storyteller, that will be a GameMaster for you if you desire. Start a new Role-Play-Session!
Play in any world you choose by adding documents about it, so that Wolfgang can reference details in character sheets, documents and your chat history for fine-tuned sessions.
Statistics
Launches
With the launch on Peerlist on the 4th of August 2025 we have shown, that Wolfgang works well for 30+ people. As you can see on our GitHub, we are quickly fixing bugs and constantly add more human-made training data to improve Wolfgang and make playing with him more fun!
The launch on ProductHunt started on the 17th of August 2025, we hoped to gather feedback there to improve our favourite GameMaster further.
Built By
Above you see some of the people working on the project. If you feel like helping as well, visit our GitHub.
How It Works
- Create a new world by starting a chat
- Create your character and choose your world(helpful wizard optional)
- Upload relevant documents (optional)
- Turn on background music (optional)
- Start playing - Wolfgang handles the rest!
Our Features
| Near unlimited context | Long role-play-sessions and detailed worlds possible |
|---|---|
| Open-Source | Always free to host yourself |
| Fine-tuned LLMs | Better output compared to generalists |
| Document Integration | Reference character sheets and world details for consistency |
| Privacy-First Hosting | You don't even need to provide your e-mail, additionally we host the data in the EU |
| Cross-Platform | The UI works in browsers everywhere, from small mobile devices to large screens on desktop |
Why build yet another chatbot?
We believe there to be a need for self-hostable solutions as well as a gap in actual GameMaser AIs. Most so-called game master AIs take over player characters on a regular basis or lose important information.
If you are interested in how we plan to solve the issue, head over to our docs on GitHub.
How is this financed?
Right now, in its early test phase, the whole project is paid for by Björn 'Idrinth' Büttner. Donations are highly encouraged to cover hosting costs and paid tiers will likely be added to the hosted version.
The locally hosted, private instance will ALWAYS be free.
Ready to Begin Your Adventure?
Start your first story today - no email required.
Launch Wolfgang AI