Alien Invasyndrome Key Rooms on Atlas

This dossier covers the Demo’s highest-value named spaces on Atlas: Kitchen, Clinic, Laboratory, Cafeteria, and Security Room (routes A/B). Use it after Atlas Overview and Decks. The goal is approach literacy—where traffic lives, where desks betray you, and which room should be a nest commute versus a one-time probe.

18+ adult stealth title; no explicit scene detail here. Developer Mozu Field / 百舌鳥, publisher Shady Corner Games, Steam app 4603980, full release TBA.

How to use room notes

For each room, learn four facts:

1. Job — why the crew (and you) care about the space
2. Traffic — open floor vs furniture lanes
3. Abort — where you leave if a cone turns
4. Progress link — which guide or walkthrough owns the next step

If detection breaks a push, wait the ~1 minute hide tax instead of soft-resetting under furniture. Theory: Stealth and Detection. Softlock recovery: Softlock Fixes. Timer practice: Detection Timer.

Kitchen

Job: High-traffic feeder room. Kitchen is often the first “real” space players learn after basic corridor survival.

Traffic: Expect recurring passes and distraction spikes. Center-floor greed is punished; hug shadow edges and confirm patrol facing before any capture windup.

Abort: Back toward a known Middle-deck junction rather than diving a random desk. Confirm the desk has an exit before using it.

Progress link: Kitchen Route, plus foundational habits in How to Play.

Kitchen is also a nest-commute candidate only if your nest is already Middle-adjacent. Distant nests turn every food-area visit into a parade. Nest systems: How to Nest, Nest Checklist.

Cafeteria

Job: Social/traffic hub. Even when empty for a moment, Cafeteria geometry often favors wide cones.

Traffic: Wide floors, fewer continuous shadow ribbons than clinic-style spaces. Treat Cafeteria as a crossing, not a camping ground.

Abort: Leave along the wall line you entered; do not diagonal through open tables if a patrol is mid-turn.

Progress link: Use Cafeteria crossings to stitch Kitchen learning into broader Middle routes inside Demo Walkthrough. Crew occupation patterns: Crew.

Clinic

Job: Tight support space. Clinic rewards patience and punishes panicked furniture dives.

Traffic: Narrower reads, more corner checks. Desk softlocks are especially rude here because exits can be visually “obvious” yet collision-blocked in Demo builds.

Abort: Prefer doorway retreat over under-desk forever-hiding.

Progress link: Clinic is a skill check for stealth fundamentals more than a unique puzzle—refresh Stealth and Detection if you die here repeatedly.

Laboratory

Job: Experiment-adjacent pressure room. Laboratory often feels like Clinic’s stricter sibling: more visual clutter, same softlock risk.

Traffic: Line-of-sight breaks are real, but so are surprise re-entries when you stare at the wrong prop. Scout twice.

Abort: If you must desk-hide, pre-plan the stand-up timing so you do not pop into a facing cone.

Progress link: Laboratory success usually means your early build is starting to matter—open Early Build and Skill Tree if captures still feel impossible without suicidal peeks.

Security Room (routes A and B)

Job: Demo chokepoint. Security is not a side closet; it is a planned operation.

Traffic: Approaches split into commonly discussed Route A and Route B. Pick one before you arrive. Mixing both mid-attempt is how clear runs become highlight-reel failures.

Abort: Know the retreat before the entry. If detection triggers at the door, take the hide tax; do not invent a third route under a desk.

Progress links:

• Systems: Security Room
• Pathing: Security Routes
• Aftermath / Demo boss context: How to Beat Boss
• Full stitch: Demo Walkthrough

Bring an intentional larva. If INT/STR investment is still random, pause at Skill Planner and Evolution Paths.

Room-to-room Middle loop (practice)

A useful Demo practice loop:

1. Kitchen silence crossing
2. Cafeteria wall-line transit
3. Clinic peek without capture
4. Laboratory peek without capture
5. Security door scout only (no commit)
6. Return to nest commute

Only after two clean loops should you allow captures. This separates map skill from combat greed.

Nesting and room choice

Room	Nest commute quality (early)	Notes
Kitchen	Often good if Middle nest	High traffic; schedule returns
Cafeteria	Poor camp, OK transit	Cross, do not live here
Clinic	Situational	Softlock risk
Laboratory	Situational	Scout-heavy
Security	Bad early nest idea	Chokepoint first, nest later

Characters and patrol identity affect which rooms feel “owned” at a given minute—see Characters Hub.

Common failures

• Treating Security like Kitchen
• Desk camping without exit tests
• Switching Security A/B after first scare
• Spending skill points only after wiping at Security for an hour
• Ignoring Map Hub siblings when lost

Related hubs

• Walkthrough Hub
• Guides Hub
• Skills Hub
• Tools Hub
• Controls Hub
• Updates Hub for room behavior changes between Demo patches

Master these five spaces and Atlas stops feeling like a maze. Everything else becomes connectors between known pressure rooms.