SCP-1678 — SCP-1678 | Cost Breakdown

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SCP-1678 Euclid ~ medium confidence

SCP-1678

Expected annual

$65.0M

One-time setup

$181.2M

Annual recurring

$57.5M

Personnel

155

Estimated upfront capital costs are large due to subterranean facility hardening, labs, and contingency/capture campaign reserves (~$181.2M one-time). Recurring annual costs are driven by security and R&D/lab operations (~$57.45M/yr), with expected annualized cost including incident probabilities of ~$64.95M/yr.

🏗️ One-Time Capital Costs Total: $181.2M

Capture Campaign $50.0M

[#25] One-time high-cost multi-team assault/capture campaign (planning, breaching, specialist containment construction) to seize the Houses of Parliament epicenter.

Facilities $35.0M

[#1] Structural retrofit and hardening of the subterranean SCP-1678 site: blast/ballistic walls, airlocks, internal roads, elevator hoists, chokepoint reinforcement and long-term occupancy upgrades.

Decommissioning Reserve $30.0M

[#24] One-time contingency reserve for remediation, sealing and site decommissioning if abandoned or neutralized.

Initial Research And Lab Setup $20.0M

[#8] Buildout of containment-capable research laboratories (BSL-2/3/4 as required), mass spec, EM, sequencing, cryostorage and associated instrumentation.

Insurance Reserve $10.0M

[#23] One-time self-insurance reserve fund to cover accidents, exposures and litigation.

Legal Cover Establishment $8.0M

[#16] One-time legal/cover-story establishment costs: shell companies, initial payoffs, permits and lobbying setup.

Compensation And Relocation Payouts $4.0M

[#18] One-time payouts and compensation/relocation funds for surface disruption in Hyde Park and nearby areas.

Training Range Simulation $4.0M

[#26] One-time construction of indoor simulation/training facilities modeled on SCP-1678 architecture (mock streets, lighting).

Tactical Equipment Procurement $3.5M

[#5] One-time procurement of small arms, armor, NVGs, encrypted comms and other tactical hardware.

Vertical Access Installation $3.0M

[#15] Reinforced elevators/hoists, lockable portal installations, shaft ventilation and surface camouflage for secure vertical access.

Power And Environment Installation $2.5M

[#2] Primary/backup power generation, UPS, fuel storage, HVAC with oxygen monitoring and gas-scrubbing, humidity control and redundancy; one-time installation costs.

Robotic Fleet Procurement $2.0M

[#6] One-time purchase of ground robots, tethered drones, LiDAR carts and manipulators for confined-area operations.

Vaults And Secure Storage $2.0M

[#12] Climate-controlled, blast/ballistic-rated vaults and safes for recovered artifacts and hazardous items.

Specialized Neutralization Prototyping $2.0M

[#21] One-time R&D/prototyping for chemicals, traps, unique ordnance and experimental neutralization tools.

Communications Infrastructure $1.5M

[#13] Hardened local comms, satellite uplinks, fiber runs, and secure servers redundancy.

Mapping And Geotechnical $1.0M

[#7] High-resolution LiDAR, photogrammetry, GPR scans and initial geotechnical surveys.

Field Hospital Setup $1.0M

[#10] One-time setup of on-site trauma/field hospital, isolation/quarantine capacity and casualty care infrastructure.

Sensor Network Installation $1.0M

[#27] One-time installation of distributed acoustic, seismic and chemical sensor network around perimeter/interiors.

Decontamination Infrastructure $700K

[#11] Installation of decontamination showers, autoclaves, incinerator/secure disposal infrastructure and primary PPE handling systems.

Equipment $0

[]

🔄 Annual Recurring Costs Total: $57.5M/yr

Staff Wages $16.5M/yr

[#3, #9, #10, #22] Salaries and benefits for security (MTF/armed guards), research staff, on-site medical staff and key engineers/administrative personnel.

Research And Monitoring $14.7M/yr

[#7, #8, #20, #21] Lab running costs, calibration and consumables, geotechnical re-surveys, and a sustained R&D program to limit/stop SCP-1678-A production (includes recurring production costs for containment tools).

Specialist Assault Teams $6.5M/yr

[#4] Rotation, training, ordinance, tactical vehicles and operational readiness for MTF assault teams (annual training and deployment budget).

Containment Breach Reserve $5.0M/yr

[#19] Annual pre-funded reserve for emergency reinforcements, surge deployments, ordnance resupply and unplanned evacuations.

Facilities Maintenance $3.9M/yr

[#2, #6, #11, #15, #27, #26] Ongoing maintenance contracts, fuel and spares for power/ENV systems, robotic fleet servicing, decon equipment servicing, shaft/elevator maintenance, sensor upkeep and training facility operation.

Cover Story And Legal $3.0M/yr

[#16] Ongoing legal, political, and cover-up operations including retainers, local compensations, and permit/litigation management.

Logistics And Transport $2.5M/yr

[#14, #18] Continuous supply lines (food, water, spare parts, ammunition) and secure transport/mitigation logistics for surface interactions and relocations.

Personnel Support $2.5M/yr

[#22] Housing, travel, hazard pay, psychological care, and rotation logistics for surface-relieved personnel.

Public Affairs And Misinformation $1.5M/yr

[#17] Ongoing misinformation, PR campaigns, controlled leaks and crisis communications.

Supplies And Consumables $1.4M/yr

[#5, #28, #11] Ammunition and expendables, PPE, batteries, filters, small tools and consumables for decontamination and field use.

⚡ Cost Scenarios

📊 Baseline (baseline) $57.5M/yr

60.0% probability / year

Normal year with steady-state operations, no major incidents beyond routine maintenance and planned deployments.

routine operations planned patrols ongoing R&D

🚨 Minor Incident $60.5M/yr

25.0% probability / year +$3.0M vs baseline

Localized breach or assault requiring surge MTF response, temporary facility repairs and ordnance resupply.

localized breach small-scale assault surge deployments

🚨 Major Breach $82.5M/yr

5.0% probability / year +$25.0M vs baseline

Large-scale containment breach with extended fighting, significant infrastructure damage, casualty care, and major repairs/legal exposures.

major breach facility damage mass-casualty response

🚨 Capture Operation $112.5M/yr

10.0% probability / year +$55.0M vs baseline

Planned/approved assault and capture campaign targeting the Houses of Parliament epicenter; includes one-time campaign construction and operations costs.

approved capture assault multi-team breaching specialist containment build

👥 Personnel 155 total

Role	Count	Notes
Security Officer / MTF Agent	100	[#3] Static posts and rotating specialists to hold perimeter and respond to incursions; estimate reflects 80–120 personnel noted.
Research Scientist	30	[#9] Multidisciplinary researchers (xenobiologists, materials scientists, cognitive researchers) represented in recurring research salaries.
Engineer / Maintenance	15	[#2, #6, #15] Technical staff for power, HVAC, robotics maintenance and vertical access systems.
Medical Officer	5	[#10] On-site medical team and trauma/casualty care staff.
Administrative Staff	5	[#16, #22] Administrative, legal liaisons and rotation/housing coordinators supporting cover operations and personnel logistics.

📋 Confidence Notes

Estimates are order-of-magnitude and based on analyst ranges; many line items have wide ranges and depend on mission scope, anomalous behavior, and political factors underground, so confidence is moderate.

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