Updated August 2026
SCP-035 — The Possessive Mask
SCP-035 is one of the most recognizable Keter-tier anomalies in SCP Foundation lore—and a common first prestige purchase for directors who finish Keter Class Anomalies research in SCP Architect X. Known as the Possessive Mask, 035 typically appears as a vendor-purchasable entity near the $250,000 price band in legacy SCP Architect databases, though beta tuning may shift numbers on your save. This guide explains when to buy 035, how to contain a mask entity without chain breaches, and why Task Force coverage matters more here than for mid-tier Euclid wings.
What SCP-035 Does in Game
SCP-035 behaves as a high-risk Keter research subject with strong gross profit potential when staffed correctly. Unlike Safe bootstrap anomalies, 035 assumes you already invested $500,000 and ninety minutes into Keter Class Anomalies research plus supporting infrastructure—Tesla Gates, Armories, redundant medbays, and stable NPC needs.
Community July 2026 tracking lists SCP-035 alongside SCP-409 and returning captures SCP-106/280 as endgame roster targets. Treat aggregator income screenshots as unverified until your Profit tab confirms per-test payouts after desk connections succeed.
Containment and Security Layout
Build an isolated Keter wing with reinforced doors, dedicated Security Station sightlines, and Task Force Armory coverage before connecting SCP-035. Mask entities historically trigger aggressive breach scripting in SCP Architect lineage games—keep Class-D dorm paths separated from the 035 cell and route scientists through staff-only corridors.
Place medbay tiles on the same floor as the wing. Breach recovery downtime destroys Keter ROI faster than vendor sticker price. Verify red triangle laptop links after multi-floor patches; failed connections look like “bad anomaly picks” when the real issue is linker desync.
- Keter research completed ($500,000 gate)
- Tesla Gates online at primary chokepoints
- Task Force hired from at least one Armory
- Dedicated scientist + Class-D pair per test chain
Economics vs Euclid Baselines
Compare paycheck deltas, not hype. A fully staffed Euclid wing might add steady net income while SCP-035 spikes gross profits but increases security incidents. Only purchase 035 when gross profits consistently exceed $30,000 per cycle with breach downtime factored in.
Code rewards like 5mVisitz can fund the purchase, but operational discipline determines ROI. Demolishing underperforming Safe wings to fund 035 is valid on space-constrained multi-floor sites—just keep one baseline Safe line for research queue cash.
Vendor Purchase vs Capture
Legacy wiki tables mark SCP-035 as vendor-purchasable without Wilderness capture, unlike humanoid Keter targets such as SCP-106. Confirm on your server build via the anomaly vendor UI after Keter unlock—beta roster changes can add or remove vendor SKUs without public patch notes.
If 035 requires capture on your slot, rehearse with mid-tier Euclid humanoids first. Failed Keter transport missions cascade into medbay saturation and riot triggers when Class-D morale is already low.
Director Checklist
Run one live testing cycle before scaling hiring around SCP-035. If breaches chain within minutes, pause tests and reinforce containment rather than buying SCP-409 in the same wing.
Watch facility showcase embed CEuJCpCrNgQ for prop layout ideas, then cross-check Keter claims on our patch notes and income tier list before spending shared multiplayer slot funds.
Frequently Asked Questions
How much does SCP-035 cost in SCP Architect X?
Legacy SCP Architect wiki tables list ~$250,000 vendor purchase pricing. SCP Architect X beta may differ—check the anomaly vendor and Profit tab on your save after Keter research unlocks.
Do I need Keter research before SCP-035?
Yes. Keter Class Anomalies research ($500,000, 1.5 hours) is the standard gate before placing Keter-tier entities such as SCP-035.
Is SCP-035 worth it over more Euclid SCPs?
Only when Tesla Gates, Task Force, and medbay redundancy are already amortized. Otherwise Euclid lines deliver better net income with fewer breach recovery loops.
Does SCP-035 require capture?
Classic tables list vendor purchase without capture, but verify on your live server—beta roster rules can change between builds.