Built for Lovecraftian HorrorEvery clue matters. None of them get lost.
Upload your session recording. Saga20 writes the case file, connects the clues, and logs the sanity toll. You focus on the dread.
"Dr. Chen's sanity cracked when she found the journal. Thomas held himself together, though barely. The cipher in the study points to a name the investigators hadn't encountered yet: Yog-Sothoth's servant, known locally as..."
What gets captured
Your complete case file, automatically
Upload your Call of Cthulhu session recording. Saga20 transcribes it and builds a detailed case file that preserves the investigation and the horror.
Key clues and discoveries
Every piece of evidence logged and cross-referenced. Connects the dots investigators haven't spotted yet.
Sanity checks and outcomes
SAN loss events logged with narrative context. Who cracked, when, and what it cost them.
Mythos entity interactions
Knows its shoggoths from its deep ones. Mythos encounters identified and added to your investigation wiki.
NPC testimonies
What witnesses said, what they withheld, and what their testimony reveals about the larger mystery.
Location atmosphere
Eerie details, sensory descriptions, and setting notes preserved with the narrative weight they deserve.
Investigator relationships
Who trusts whom, what bonds formed under pressure, and which connections changed during the investigation.
How the CoC session summarizer works
Three steps. No setup required. No subscription needed to try it.
Record your session
Any audio file works. Phone, Discord, Zoom, a recorder on the table. Upload whatever you have.
Saga20 does the work
Transcription, voice recognition, Mythos-aware summarization. Atmosphere preserved, not sanitized.
Your case file is ready
Full investigation summary, wiki updated, ready to share. The horror remains. The note-taking doesn't.
Record your sessions, zero fuss
Upload any audio file and we turn it into session notes and build an automatic wiki for your party.
Players recognized, automatically
After the first session, Saga20 remembers each voice in future recordings. No manual tags.
Peaches
3 samples matched
Barbo
2 samples matched
Summaries that actually make sense
Add custom world and character context. Summaries get richer with each session as Saga20 builds a deeper understanding of your campaign.
Share sessions with your players
One-click sharing. Anyone can read your session summaries with no account required. All sessions are grouped by campaign automatically.
Drops straight into your server
Connect your campaign to Discord and publish recaps with one click. Players get a beautifully formatted summary right in your channel. No account needed.
Build and manage your entire world
Characters, NPCs, locations, factions, and items in one workspace. @-mention any entity to link your world together. The Campaign Graph maps every connection automatically, and entity pages update after every session.
Built for the Mythos, not just notes
CoC isn't just combat. It's atmosphere, slow dread, and clues that only make sense later. Saga20 captures all of it.
Connects the clues
Tracks clues, red herrings, and mounting evidence across sessions. The link between the book in session 2 and the name dropped in session 5 gets preserved.
Sanity and consequences
Sanity loss moments logged with narrative weight. Who broke, how bad it was, and what it means for the investigators going forward.
Mythos vocabulary
Knows its tomes, its entities, its cults. Necronomicon, Mi-Go, Cthulhu cults. All identified and added to your wiki without manual tagging.
How Saga20 compares for Keepers
Clues, sanity, atmosphere. All preserved. Nothing scattered.
| Feature | Best pickSaga20 | ChatGPT | Manual Notes |
|---|---|---|---|
| Clue connection tracking | Intelligent | Generic | Scattered |
| Sanity tracking | Detailed | None | Basic |
| Atmosphere in summaries | Preserved | Dry facts | Dry facts |
| Auto-updating wiki | Automatic | No wiki | Manual |
| Free to try | Yes, always | Subscription | Yes |
Your investigation wiki updates itself after every session
After you upload, Saga20 automatically updates every investigator, NPC, and location in your campaign wiki. No manual note-taking. No reorganizing case boards. It just happens.
- Investigator and NPC pages with full case history
- Locations, cults, and tomes all in one place
- Campaign Graph maps every connection visually
- @-mention any entity to link clues across sessions
Pricing that makes sense
Start with a free session, no credit card required
Try It Free
Perfect for testing
- 1 session summary
- All world-building features
- Full voice recognition
- Unlimited text notes
- No credit card required
Dungeon Master
For weekly groups
- 6 sessions per month
- Smart voice recognition
- Unlimited campaigns
- Shareable campaign pages
- 1 GB storage
Epic Campaign
For busy GMs
- 12 sessions per month
- Custom wiki links
- Campaign Chat
- Higher limits for everything
- 5 GB storage
Legendary Saga
For power users
- 24 sessions per month
- Campaign Chat
- Early access to new features
- Priority support
- Unlimited storage*
All prices in USD.
* Unlimited storage subject to reasonable usage.
What Keepers are saying
Sanity-verified feedback. From our form, not the Mythos.
“It's like having a dedicated campaign archivist sitting at your table. You record your session, and it turns that recording into summaries while building a living campaign wiki with your NPCs, locations, factions, and ongoing story threads.”
GavinskiDM of Ashes of the Forgemaster“Its very helpful to have a AI GM assistant, especially to keep track of NPCs, locations, and other items created on the fly.”
R0GUEPro GM“Saga20 is easy to use and makes unique moments in your games stick out. As a GM who runs multiple games, it saves me time while creating an amazing resource for both me and my players. As a Pro GM, it feels like something else I can offer my players.”
GM KilliyanGM of almost 6 years“This is a great time saver. The voice recognition is spot on and the generated session notes are 99% accurate. I share the link with my players and they appreciate the thorough and complete notes.”
Darth CharlesPlayer for 30+ years and DM of 20+ years“It's like having a dedicated campaign archivist sitting at your table. You record your session, and it turns that recording into summaries while building a living campaign wiki with your NPCs, locations, factions, and ongoing story threads.”
GavinskiDM of Ashes of the Forgemaster“Its very helpful to have a AI GM assistant, especially to keep track of NPCs, locations, and other items created on the fly.”
R0GUEPro GM“Saga20 is easy to use and makes unique moments in your games stick out. As a GM who runs multiple games, it saves me time while creating an amazing resource for both me and my players. As a Pro GM, it feels like something else I can offer my players.”
GM KilliyanGM of almost 6 years“This is a great time saver. The voice recognition is spot on and the generated session notes are 99% accurate. I share the link with my players and they appreciate the thorough and complete notes.”
Darth CharlesPlayer for 30+ years and DM of 20+ years“I have long wanted to catalogue the adventures of my Actual Play "Legends of Elzorya" but was never able to keep up with a living wiki on my own. Being able to bring in the session recaps and build out the wiki as we play has been a game changer in how I organize this living world.”
WolfkinzGM of "Legends of Elzorya"“The tool for turning session audio into notes is really robust. Even with a lot of background noise and ambient music, it was able to identify different speakers correctly. It even omits table chatter and random asides!”
salvagebarPro GM“Saga20 creates an utterly incredible experience for any GM. It is so easy to upload the audio from the session and get this amazingly detailed 99% accurate overview of everything that was happening during the session.”
“This has made my players lives easier. We have a central location where things can be reviewed and discussed between session and referenced during play... It is easy to use, intuitive, and I cannot stress this enough, an EXCELLENT campaign management tool for both you and your players.”
ZandelarGM for Tales From The Pythian“It's honestly an incredible tool and will help you remember things that most note takers will miss! Highly worth it! Plus so far, all of my players have loved it!”
LeopoldTheJustPro GM on StartPlaying“I have long wanted to catalogue the adventures of my Actual Play "Legends of Elzorya" but was never able to keep up with a living wiki on my own. Being able to bring in the session recaps and build out the wiki as we play has been a game changer in how I organize this living world.”
WolfkinzGM of "Legends of Elzorya"“The tool for turning session audio into notes is really robust. Even with a lot of background noise and ambient music, it was able to identify different speakers correctly. It even omits table chatter and random asides!”
salvagebarPro GM“Saga20 creates an utterly incredible experience for any GM. It is so easy to upload the audio from the session and get this amazingly detailed 99% accurate overview of everything that was happening during the session.”
“This has made my players lives easier. We have a central location where things can be reviewed and discussed between session and referenced during play... It is easy to use, intuitive, and I cannot stress this enough, an EXCELLENT campaign management tool for both you and your players.”
ZandelarGM for Tales From The Pythian“It's honestly an incredible tool and will help you remember things that most note takers will miss! Highly worth it! Plus so far, all of my players have loved it!”
LeopoldTheJustPro GM on StartPlayingCall of Cthulhu session summarizer FAQ
Does it support 7th Edition rules?
Yes. It understands pushed rolls, luck spending, and modern sanity mechanics. The summaries reflect how those rules played out, not just the results.
Does it work for Delta Green?
Yes. The system adapts naturally to modern conspiracy-style investigations. Delta Green, Pulp Cthulhu, Trail of Cthulhu. If it runs on investigation and horror, it works.
Does it track handouts?
If you read a handout aloud or discuss its contents at the table, Saga20 picks it up and indexes the relevant clues in your investigation summary. Read them out loud.
What about Pulp Cthulhu?
Works just as well as the purist horror style. Higher action, pulp talents, two-fisted investigators. Saga20 adjusts to the tone of your table, not the other way around.
Your investigations deserve to be documented.
Stop losing clues between sessions. Upload your recording and Saga20 writes the case file.