FungusNet

FungusNet is a living communications network engineered by Cato with Leese’s assistance and deployed across the worlds contested by the System. More than a transmitter, it is a distributed infrastructure of fungal mats, underground transceivers, relay towers, nodules, and orbital links. It allows Cato’s dispersed selves and allies to remain in contact across immense distances, coordinates military and ecological operations, and eventually carries whole digital personalities. Its significance lies in the way it turns biological growth into an alternative to the System’s centralized communications and control: a network that spreads through many local nodes while preserving connection across a civilization in crisis.

Origin and Physical Design

FungusNet grew out of more than a year of work by Cato and Leese. They developed a large plant-form with the same basic communications capability as the earlier ferns, but shaped it into something closer to a fungal mat than an ordinary fern. Much of the development period was spent testing, debugging, and adapting solutions drawn from Cato’s databases. The result was deliberately engineered rather than simply cultivated: it was meant to function as infrastructure without announcing itself as a dangerous new organism to the System.

A mature FungusNet installation could spread beneath the ground as an immense transceiver and raise tree-like towers for line-of-sight communication. Cato imposed strict limits on its growth and removed the biochemical competition ordinarily associated with aggressive organisms. Because its chemistry differed from that of local life, ordinary predators and parasites could not easily attack it. That resistance was useful for communications, but Cato also considered the ecological consequences of System collapse; he did not want the network to ruin local ecosystems once the System’s protections disappeared.

The network could be manufactured on an industrial scale. Around Ikent alone, Cato had several million tons of biochemical factories, and parallel versions of himself on other worlds were building comparable capacity. Small balls roughly an inch in diameter could be seeded from orbit. The drops were imprecise, but Cato could release hundreds of thousands of them and send a kill-code to every node except those he intended to retain. This changed the character of his expansion. Once the infrastructure existed, raw numbers could solve problems that would otherwise require delicate individual ingenuity, even though Cato himself recognized that he was not especially clever.

Expansion Across Worlds

FungusNet’s spread follows Cato’s distributed mode of existence. It carried communications through the territories where his presence was already established and helped extend that presence toward the edges of his expansion. At the frontier, where Cato had not yet arrived or had only begun building infrastructure, instances of Raine Talis and Leese Talis had to transport the network manually. The task remained difficult because the System’s portal network prevented a wholly exponential expansion, despite the apparently explosive growth of the biological infrastructure.

The network also connected the many iterations of Yaniss. The Bismuth version of Yaniss used an upgraded communications lizard capable of audio and low-bandwidth visual transmission through chromatophores, and FungusNet kept her informed about iterations scattered across a double handful of worlds. Since she had lost many of her agents while assisting Cato, Cato replaced them, although her constant communications placed such a load on his radio network that substantial upgrades became necessary. FungusNet therefore served not merely as a telephone system but as a means of maintaining identity and coordination across separated versions of the same person.

The Sydean Lineage used the network to support its movement through the portal frontier. Instances of Raine Talis and Leese Talis who had advanced to Platinum began cutting branches outward from the main trunk of the lineage’s passage, following the huge perimeter formed by the System’s portal links. Cato regarded the Inner Worlds as more important than the frontier because they controlled the wider structure, and the network’s new capabilities eventually allowed the Sydean Lineage to turn toward the Core Worlds. FungusNet thus mirrors Cato’s strategic shift from peripheral infiltration to central penetration.

Its reach also made surveillance possible where direct contact was unavailable. During periods when the Sydean Lineage went incommunicado, feeds relayed all the way to Koh-rel through FungusNet showed that the Ascension Grounds remained sealed beneath their dome, even though Raine Talis and Leese Talis might have been inside a dungeon or elsewhere in the System. At other times, FungusNet allowed Cato to contact Raine Talis while she was on a war-world through potted plants in the Punchy Bastards guild house. The network did not require Cato’s physical presence at the receiving site; it required only a living local component through which his communication could propagate.

Military and Covert Uses

FungusNet became a covert instrument of infiltration because its biological form could be hidden in places where more conspicuous technology would attract System attention. On the Zoek Valley Border Zone, Cato’s forces carried FungusNet nodules in pouches around a Jager frame’s waist. The frame seeded the region while ostensibly hunting creatures required by basic quests. The nodules had to be carried manually because available spatial storage could not contain living things, but the frame’s size made that practical. The augmented senses of two Bismuth observers eventually detected the frame stalking through the forest, demonstrating both the usefulness and the risks of such clandestine deployment.

The network also supported dungeon operations. In one large-scale assault, insects poured from drop pods into dungeons while the pods rooted themselves into the ground. The root structures were a modification of FungusNet technology and served as control stations; some insects carried additional components as relays. The combat algorithms were distributed enough to navigate individual dungeons without constant centralized direction. FungusNet consequently extended Cato’s reach into hostile enclosed environments while preserving a degree of autonomous operation.

Its military value was heightened by its ability to carry system-jamming biomatter. When Cato activated the Big Bad Bug Bombs, insect swarms flooded pacified towns and converted themselves into System-jamming smart biomatter. The insects wrapped around people’s heads while temporary antennae rose from rooftops and clearings. FungusNet alone could not handle the resulting bandwidth demands: the process required transmission of gestalts, genetic and biometric information, and relational analysis needed to preserve and regroup people correctly. Dense satellite networks in orbit therefore took over much of the upward transmission, with FungusNet acting as the biological ground infrastructure that connected the operation.

The conversion of the insects triggered a System Defense quest across the entire globe. Cato kept backup forces just short of a re-entry burn in case the local god responded with a purge, and he used the network to hijack some of the jamming biomatter that had entered a capital. He had deliberately avoided fully deploying it there because excessive action might provoke an Azoth-level response; communication and negotiation could achieve more than immediate force. FungusNet’s role in this episode is therefore double-edged: it enables a planetary-scale attack, but its very flexibility also lets Cato modulate the operation and reserve escalation.

Digital Transmission and Evacuation

FungusNet’s most consequential function was the transport of digital consciousness. When Yaniss agreed to leave a threatened region, the substrate suspended operations, compressed and assembled her gestalt into a static package, broadcast the package through FungusNet, and discarded the condensed archive after receipt was confirmed. The procedure preserved continuity of experience, but many people regarded it as equivalent to suicide. FungusNet consequently turns a communications network into a medium of migration, while forcing the characters to confront whether transmitted continuity constitutes survival.

Cato accepted this process without difficulty, though he and the sisters remained in place rather than evacuating themselves. He had prepared deep-space broadcasting and receiving equipment for a possible communications gap after severance. One world being cut off lay only forty light-years from a world that would remain inside the System, close enough for later updates but far too distant for conversation. FungusNet could not eliminate the physical limits of interstellar communication, yet it made the transition manageable by providing local connection before the boundary became final.

The same network supported the evacuation of digital Alums from the Inner Worlds. Those who escaped moved toward Hunting Worlds, where digitization pods waited in orbit. Their digital forms were transmitted through FungusNet to Heimdall, while electromagnetic radiation continued to cross portal boundaries even after physical matter could no longer pass. FungusNet therefore became part of an inter-world rescue chain: populations were digitized, transmitted through the living network, and reassembled or hosted elsewhere when portal geography had become politically and physically dangerous.

During the System crisis, FungusNet reached a much larger scale. Exterminatus timers appeared as worlds registered Cato’s presence, and digital citizens responded by moving, duplicating themselves across worlds, or reconciling back into single individuals. Activity drove FungusNet to peak capacity across more than half a million worlds. Most frontier worlds did not require mass digitization because Cato’s forces could clear their dungeons and Nexus buildings quickly, but final signoffs still passed through the network before portals closed and planets were reduced to lightspeed communications. The network’s success did not abolish distance: neighboring planets might be only dozens of light-years apart, while others were hundreds or thousands away, beyond the dependable range of even deep-space arrays.

Limits, Administration, and Aftermath

FungusNet was powerful but not limitless. It could not substitute for a relay in regions where no fungal growth had been established, prompting Cato to ask for one communications lizard to remain so he could speak through it. Its organic transceivers also became unreliable over broadcast distances of hundreds of thousands or millions of miles. Sensor feeds could continue transmitting blindly toward the surface, hoping that something would receive them, but the network could no longer guarantee replies. During a later emergency, Cato kept weapons and high-powered communications arrays ready because a failure of FungusNet might leave his forces cut off for years; the nearest surviving System world inside the Large Magellanic Cloud was five light-years away.

The network was also a social space with rules of access. When Yaniss discovered that twelve visitors were fully digital entities rather than mere broadcasts, she granted them permissions because she possessed complete administrative control of the habitat’s network. The other Ikent were newly arrived from the System, so she asked that the visitors not harass them. Protections preserved the autonomy of the visitors’ actual selves, but their access remained that of guests, not owners. Their presence multiplied bandwidth use by several orders of magnitude, and even the Ikent sometimes turned industrial tools into weapons, making network administration inseparable from physical security and political judgment.

FungusNet’s development depends on the same slow-then-sudden pattern that governs Cato’s larger campaign. Exponential growth can remain almost invisible while factories, spores, relay plants, and local communities accumulate, then become overwhelming once the network reaches enough nodes to coordinate action across worlds. The fungal mat is therefore both a material object and a model of Cato’s strategy: decentralized, persistent, adaptive, and capable of joining separated populations without recreating a single controlling center.

Its deepest narrative contrast is with the System. The System’s infrastructure can make maps, regulate atmospheres, sustain towns, and bind worlds together, but those supports vanish when its power retreats; ordinary physics returns, essence supplies fail, mountains crumble, lakes become mud, and ecosystems collapse. FungusNet is built for the aftermath of that dependence. It carries warnings, preserves minds, spreads biological tools, supports remediation, and keeps communication alive across severed portals. Yet it is not an innocent alternative: it can jam the System, coordinate invasion, infiltrate settlements, and process people into transmissible packages. FungusNet embodies the book’s central ambiguity of liberation technology—an infrastructure designed to defeat centralized domination must still decide how much control to exercise, whom to preserve, and what kind of networked life should follow the collapse.