The Infinity Circuit is the psychic network at the heart of every Craftworld. It’s where dead Eldar souls are preserved, and it’s the closest thing they have to an afterlife.
What the Infinity Circuit actually is
Think of it as the Eldar version of a computer, but built from wraithbone and soul stuff. It’s a lattice of psychocrystalline soul-matrices that links Soul Stones together, and it holds the memories and personalities of everyone who’s died on the Craftworld.
Those souls form a kind of group consciousness. It gives the Craftworld a deep well of psychic power, and it acts as an ancestral mind that the living can turn to for advice.
Why it matters so much
Since Slaanesh came along, dying without your soul being caught in the Circuit means being lost to the warp and devoured. That’s why Eldar defend their Craftworlds with a ferocity that borders on suicidal. They’re more than protecting a home, they’re protecting their ancestors.
The souls inside can only muster a tiny fraction of Slaanesh’s power. But the Eldar hope that one day there’ll be enough of them to unite and bring the Great Enemy down. It’s a faint hope, and everyone knows it, but it’s the only one they’ve got.
How Eldar use it day to day
Any citizen can access the Circuit through an Infinity Terminal. These usually look like a slender pedestal wrapped in crystal threads, with a softly pulsing gem on top. You place your hand on the gem and interface psychically.
From there you can check where people are, sense recent emotions, send telepathic messages, or ask a dead friend or ancestor for guidance. It’s part communication network, part library, part family shrine.
- Infinity Terminal: pedestal with a pulsing gem for psychic access
- Find present or recent locations and emotions of anyone on the Craftworld
- Send instant messages as telepathic visions
- Seek guidance from departed friends and ancestors
Will o’ the wisps and spiritseers
The Circuit gives off light from the souls inside it, usually called will o’ the wisps. Each glowing orb is an individual spirit.
When a Spiritseer is nearby, their aura brings a kind of awareness back to those lights. The spirits get agitated and often swarm to orbit the seer. The wisps also reveal where clusters of ancient souls sit within the wraithbone.
Soul-grafting and origins
New souls get added through a ritual called Soul-Grafting, or Failleanam. Memories and personality patterns are fed into a vacant circuit, which is how the whole thing gets “programmed” over time.
On Iyanden, early Infinity Circuit tech is credited to Mehlendri Silversoul in M33. The Exodites have something similar called a World Spirit, so the idea isn’t unique to Craftworlds.
Key facts
- The Infinity Circuit is a psychic network of soul-matrices linking Soul Stones with wraithbone, found at the heart of every Craftworld.
- It preserves the souls and memories of the Craftworld’s dead as a group consciousness that can advise the living.
- Without it, Eldar souls are lost to the warp and consumed by Slaanesh.
- Living Eldar access it through Infinity Terminals, which let them communicate, locate others, and consult ancestors.
- The lights it emits are called will o’ the wisps, and each one is an individual spirit.
- Soul-Grafting (Failleanam) is the ritual that adds new memories and personalities to a vacant circuit.
FAQ
What happens to an Eldar soul if it isn’t caught by the Infinity Circuit?
It’s lost to the warp and devoured by Slaanesh. That’s the core reason the Circuit exists and why Eldar fight so hard to protect their Craftworlds.
Can living Eldar talk to the dead through the Infinity Circuit?
Yes. Through an Infinity Terminal they can seek guidance from past friends or ancestors, and the dead persist as part of a group consciousness.
What’s the difference between an Infinity Circuit and a World Spirit?
They’re similar in function. The World Spirit is the Exodite version, while the Infinity Circuit is the Craftworld equivalent built from wraithbone and soul-matrices.