Demon Sigil
Welcome, traveller, to the ink-and-iron wing of the codex. Conjure demon sigils that hum with small careful geometry, a long list of pacts, and the small patient gravity of a mark the deep has been quietly signing. Roll.
Last updated:
Your roll
- A circle found on the chain of a pocket watch that stopped at death drawn in time-frozen gears, ringed by eight silver candles, sealed with 'Mortathor,' with the warning that if a single line breaks, the stopped time will resume for its owner.
- A circle drawn in the slime of the blob, surrounded by seven green candles, sealed with 'Blobri,' with the warning that if a single line breaks, the blob will consume the town and remember every face.
- A sigil photographed in the arson investigation files drawn in accelerant residue, ringed by eight orange candles, sealed with 'Arson,' with the warning that if a single line breaks, the fire will find new investigators to examine.
- A circle found in the train station drawn in coal dust, ringed by ten black candles, sealed with 'Ironhorse,' and the warning that if a single line breaks, trains will arrive that are not on any schedule.
- The double circle with opposing arrows drawn in mirrored pigment, surrounded by seven black candles, sealed with 'Mirror,' with the warning that if a single line breaks, the mirrors will reflect different worlds.
- The pattern under the Angkor Wat's central tower drawn in Cambodian laterite, circled by eight orange candles, sealed with 'Angkoros,' with the warning that if a single line breaks, the temple will sink into the jungle that remembers.
- A circle drawn in the blood of the first murder, ringed by twelve red candles, sealed with 'Primus,' and the warning that if a single line breaks, the first murder will be the last.
- The mark discovered on the back of a medieval triptych drawn in egg tempera, surrounded by nine religious candles, sealed with 'Tryptor,' with the warning that if a single line breaks, the triptych will show a fourth panel.
Previous rolls 0
Why a demon sigil must work as a single small mark
A demon sigil is more than a drawing. It is a small soft signature, a long list of pacts, a tidy altar, and a single long view of what a quiet cultist has been quietly building. Its shape has to read well on a parchment, a grimoire page, a tabletop ritual brief, and the kind of tag a demonologist paints on a hand-stamped altar. The Demon Sigil Generator hands you sigils that suit a real tabletop demon campaign, a dark fantasy novel, a fan-made grimoire, and the small private notebook of a single quiet demonologist with a long memory.
Sounds of a working sigil
Listen for the cadence first. Many sigils lean on a single strong geometric image, a circle, a horn, a hidden pact, a quiet flame, paired with a soft hellish modifier. Others borrow from a founding cult, a piece of grimoire lore, a piece of demonic heritage. A handful of the strongest sigils are a single evocative shape, the kind that looks beautiful in black ink above a parchment. Read it aloud. Imagine the invocation.
For novelists, GMs, worldbuilders, and the curious
Spin the tool to outfit a dark fantasy novel, draft a tabletop demon campaign, name a rival cult, or build the long grimoire list of a fictional abyss. The sigils work for canonical-feeling marks, fan-made shapes, the small private notebook of a single quiet demonologist who has been quietly sketching sigils for years. Pick a favorite, then write the slow invocation that follows.
Tips from the grimoire scribes
Lean on the geometry. A demon sigil should let a reader guess the cult before they read the grimoire. Test it on a parchment. The right sigil looks as good in black ink as it does in a chapter heading. Save the second-best sigil. The runner-up makes a perfect rival cult, a sister circle, or the small mysterious mark a senior demonologist has been quietly watching for years.
Consider before you roll
A demon sigil is also a small first invocation. Sign it carefully.
- What is the sigil's signature element, flame or circle?
- Is the tone fierce, mythic, or quietly eerie?
- Could a demonologist spell it on the first try?
- Will it survive a thousand winters and a thousand quiet invocations?
- Does the sigil hint at the deep without ever saying the word?
Scribes ask…
Can I really use these demon sigil for free?
Yes. Every name rolled with the Demon Sigil is free to use in your stories, games, streams or projects — no credit required, though a kind word is always welcome. Just remember the muse is generous, so the occasional name may already belong to someone else; double-check before tattooing it on a logo.
Is there a limit to how many demon sigil I can roll?
Roll until your dice catch fire. The codex holds many hundreds of demon sigil for this generator alone, and the pool gets shuffled on every visit, so you'll rarely see the same line-up twice.
Does this work without an internet connection?
Once a generator's page has loaded, the names are cached in your browser. You can reroll on a train, in a tent, or deep in a dungeon — no signal required.
Where can I find even more storytelling tools?
Wander over to The Story Shack's Demon Sigil for an enriched edition with even more options, illustrations and worldbuilding aids.