Intrusion

Intrusion is a mode built around NPC sites — player-run or contestable sites with stability, defense, and facilities. You invest items, raise defenses, and upgrade facilities to control and profit from a site.

The in-client name for "intrusion" should be confirmed. UI locations follow the client UI overview. Mechanics below are confirmed against the server.

Sites & stability

• Site info — details of an intrusion site.
• Stability — the site's core stat, a value from 0 to 150. A new owner starts at 1. Stability drives everything:
  • Bonus thresholds (content, intrusionsitestabilitythreshold): facility bonuses unlock at stability 20 / 60 / 80; a stack of aura effects (intrusion core, detection, geoscan, harvester, industrial, masking, mining, repair, signals — each lvl1–3, plus combined lvl4 effects) unlocks in tiers at 10, 20, 40, 50, 70, 80 and 100; docking rights unlock at 50; the defense-node limit rises at 40.
  • Production points = stability / 10 (max 15) — the currency for upgrading facilities (one point per level).
  • Decay: if no successful SAP happens for 5 days, the site starts losing 5 stability per day until action is taken again.
  • Loss: stability hitting 0 makes the owner lose the site (it becomes unowned).
• Stability log — review changes to a site's stability.

flowchart TD
    S["SAP completed at the site\n(loot container + 120 EP to participants)"] --> W{"Who won, relative to the owner?"}
    W -->|"owning corp"| UP["Stability + SAP value"]
    W -->|"ally (mutual standing ≥ 10)"| SAME["No change"]
    W -->|"hostile corp"| DOWN["Stability − SAP value"]
    W -->|"site unowned"| TAKE["Winner takes ownership\n(stability resets to 1)"]
    DOWN --> Z{"Stability at 0?"}
    Z -->|yes| LOSE["Owner loses the site"]
    UP --> DECAY{"5 days without a SAP?"}
    DECAY -->|yes| D2["−5 stability per day\nuntil action resumes"]

Who moves stability

Stability changes come from completed SAPs (below) and the system decay. The effect depends on who wins the SAP relative to the current owner:

• Owner wins → stability gains the SAP's value.
• An ally wins (mutual standing ≥ 10) → no change.
• A hostile corp wins → stability loses the SAP's value.
• Unowned site → the first player-corp winner takes ownership (stability resets to 1).

SAPs (site attack points)

A SAP is a temporary objective that spawns at a site. Completing it drops a loot container at the SAP's position, changes stability, and pays 120 EP to every participating character. NPC cultists contest the SAPs too — if they fill the score first, the SAP counts against your side. There are four SAP types:

• Submit a SAP item — in a zone, submit a specimen to a specimen-processing SAP.
• SAP item info — inspect SAP item data (yours and general).

SAP specimens are the consumables of the mode; they also carry a large core value, so they double as PBS reactor fuel.

Defense & effects

• Set defense threshold — configure the site's defense threshold (when the site's automated defense engages).
• Set effect bonus — set the aura/effect bonus configuration on a site (from the stability-unlocked aura set).
• Upgrade a facility — improve a site facility: costs 1 production point (i.e. 10 stability), CEO / deputy / accountant only, capped at a maximum level.
• Set a site message — set a public message for the site.

Logs

• My intrusion log — your intrusion activity.
• Public log — the public intrusion feed.
• My sites log — activity on your sites.
• Stability log — stability changes (see above).

Practical notes

• Stability is the core stat — it gates the bonus tiers, produces the upgrade currency, and is what hostile SAPs strip away.
• SAPs are contested — the NPC cultists race you; a lost SAP costs you stability.
• Don't let a site sit idle — 5 days without a successful SAP starts the daily decay.
• Logs tell the story — use the my/public/stability logs to track what's happening across your sites.