SCP: Secret Laboratory’s Site-02 is divided into four zones: Light Containment, Heavy Containment, Entrance, and Surface. Light Containment is the testing and starting area for Scientists and Class-D Personnel; Heavy Containment holds the main SCP facilities; Entrance connects the underground complex to the surface; and Surface contains evacuation and reinforcement points. The most reliable way to navigate is to learn each zone’s purpose and stable connectors rather than memorize one room sequence, because layouts are generated from multiple possible patterns.
Playing with friends? Godlike.Host runs hosted SCP: Secret Laboratory servers from 10 data-center locations, with free DDoS protection.
Site-02 zones at a glance
The official game description defines the four areas by what happens there: “Light Containment Zone, where Scientists and Class-D Personnel reside. Heavy Containment Zone, where the SCPs are contained. Entrance Zone, where Facility Guards are stationed, and Surface Zone, where the evacuation point is located, along with the insertion points for Mobile Task Forces and Chaos Insurgents.” That description is also a useful navigation model: identify whether you are in a testing area, an SCP-containment area, a transit area, or the extraction surface.
As an Amazon Associate I earn from qualifying purchases.
Windows Errors? Fix Them Before They Spread
Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallOutdated Drivers Are Slowing You Down
One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware match| Zone | Main purpose | Reliable connectors or landmarks | Layout information |
|---|---|---|---|
| Light Containment Zone (LCZ) | Testing, offices, medical operations, D-Class holding, and containment cells for Safe and Euclid anomalies | Class-D Cells are in the same exact location in every documented LCZ layout; elevator systems lead toward Heavy Containment | Five possible layouts are documented |
| Heavy Containment Zone (HCZ) | Main SCP containment area | Two elevator systems connect to LCZ; two checkpoints connect to Entrance Zone | Ten possible layouts are documented, with highly variable room order |
| Entrance Zone (EZ) | Transition and security area between underground containment and the outside | Transport elevators connect to Surface; checkpoint connections lead to HCZ | Use elevators and checkpoints as route markers rather than relying on a fixed room order |
| Surface Zone | Outer security, receiving, evacuation, and reinforcement area | Gate-A Surface includes an elevator to Entrance Zone; evacuation and insertion points are on the surface | It is an outdoor extraction and deployment area, not another underground containment floor |
Layout counts and room details can change with game updates. The counts above are the figures documented by the official wiki pages retrieved in 2026, so treat them as version-specific rather than permanent guarantees.
Light Containment Zone: the testing and starting area
What LCZ is for
Light Containment Zone is Site-02’s Subsection-03, also called the Light Containment and Testing Zone or “Grayhall.” It contains testing facilities, containment cells for Safe and Euclid anomalies, D-Class stocks, personnel offices, and medical and testing operations. Scientists and Class-D Personnel are the groups most closely associated with this zone in the official site description.
#1 Best Overall
- [Ultra-Lightweight Ear Buds Designed for Small Ears] Each earbud weighs only 3.7g and features a compact, ergonomic in-ear design made especially for small ears. Secure, low-profile, and comfortable for workouts, all-day wear or overnight sleeping.The ultra-slim profile sits flush in your ear with no hard edges poking or rubbing, so you can even sleep on your side without discomfort.
- [Immersive Stereo Sound with TOZO OrigX Technology] TOZO OrigX tuning delivers clear vocals, balanced mids, and natural stereo sound for music, podcasts, and videos.
- [Long Battery Life for Daily Use] Get up to 7 hours of playtime on a single charge, with up to 32 hours total using the charging case—ideal for workdays, commuting, and extended listening sessions.
- [Bluetooth 5.3 & Stable Connection] Bluetooth 5.3 provides fast pairing, stable wireless performance, and reduced dropouts as you move around home or office.
- [Deep Bass with Clear Vocals] High-performance drivers produce punchy bass while keeping vocals clean and detailed for everyday listening.
LCZ is often the first underground area players need to understand. Its rooms can look similar, and a familiar-looking corridor is not proof that you are following the same route as in another round. Treat the zone’s fixed landmark and its connection elevators as your anchors.
The fixed Class-D Cells landmark
The official wiki documents five possible LCZ map layouts, but the Class-D Cells always spawn in the same exact spot across those layouts. This makes the cells the most dependable early orientation point in the entire zone. If you become disoriented, finding the cells gives you a known reference from which to re-plan instead of continuing through unfamiliar corridors at random.
- Use the Class-D Cells as a reset point when you lose your bearings.
- Once you know where the cells are, note which corridors and connectors branch away from that fixed location in the current round.
- Do not assume that every other room will appear in the same order on the next server seed or round.
Getting from LCZ toward HCZ
LCZ and HCZ are connected by elevator systems. The exact intermediate rooms depend on the generated layout, so there is no single route that can be promised for every game. A practical route-finding sequence is:
- Establish your position relative to the Class-D Cells or another room whose identity you can confirm.
- Search for the elevator connector that leads out of LCZ rather than trying to memorize a corridor count.
- Confirm that the connector is taking you toward Heavy Containment before committing to a long movement through unfamiliar rooms.
- After entering HCZ, switch to HCZ landmarks and checkpoint logic; do not continue treating LCZ room patterns as if they still apply.
The important distinction is that the elevator is the stable idea, while the path to that elevator is generated. A guide that gives one guaranteed sequence of rooms will become unreliable when the layout changes.
Heavy Containment Zone: the variable central complex
Purpose and structure
Heavy Containment Zone is Site-02’s Subsection-05 and the primary SCP containment area. It is the largest navigation challenge in the four-zone model because room order varies substantially between generated layouts. The official wiki documents ten possible HCZ layouts.
Rank #2
- 【IP68 Waterproof Multifunctinal Smart Watch】Torjalph fitness activity tracker smart watch is IP68 waterproof technology ,you can wear it when swimming,handwashing,it's rain-proof which means that you perform multiple exercise modes outside without worrying about sweat or rain corroding your fitness smart watch,and this watch equipped with a 230 mAh large capacity battery magnetic charging ,and this sports activity tracker watch can be used 5-7 days If fully charged.
- 【Larger 1.83'' Full Screen Watch & Multi-dial Selection】1.83 inch full HD color touch screen smart watch for men / women provides excellent 240*284 resolution image quality ,This Bluetooth smart watch offers a better touch experience and remarkable immersion and ,more than 200 watch faces for you to choose from App"Da Fit ", you can change the dial style according to your mood to wear keeping the world on your wrist
- 【Accurate Activity Tracker Smart Watch 】sports watch activity tracker uses sweat and dust resistant breathable silicone strap, our Fitness Tracker Smart Watch for Android iOS Phones supports 12 sports modes,walking,running,bicycle,swimming,badminton,basketball,football,rope skipping. This bluetooth calls smart watch for men women is lightweight and stylish, bringing more convenient and relaxing sports experience while also providing more protection.
- 【Your 24 Hour Personal Daily Health Monitor】Fitness watch for women men full touch screen IP67 waterproof bluetooth smartwatch for Android iOS Phones with heart rate blood pressure monitor multifunction Andriod smart watch with steps counter sleep monitor sports fitness watch, monitoring blood oxygen saturation allows you to understand your physical condition in real time to track fitness progress ,to know your health status in time.
- 【More Functions Bluetooth Call Smart Watch】This fitness activity smart watch full screen for iPhone and Android phones includes a bunch of new features including:The bluetooth smart watch can hang up the phone, receive and display WhatsAPP /Text /Facebook /Twitter /Messenger reminder.Support sedentary reminder, alarm clock, stopwatch, timer,weather information,music control, remote camera control compatible with Android 5.0 and above or iOS 9.0 and above smartphones.
HCZ has two important sets of connections. Two elevator systems connect it with LCZ, and two checkpoints connect it with Entrance Zone. These connectors are more useful than trying to remember every room because they remain the structural goals even when the surrounding rooms change.
The Tool Desk
Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →How to orient yourself in HCZ
When you enter HCZ, first determine whether your immediate objective is to return to LCZ or reach EZ. Then use the corresponding connector type:
- Returning to LCZ: look for one of the two elevator systems that serve the LCZ connection.
- Reaching Entrance Zone: search for one of the two HCZ checkpoints.
- Studying the local layout: identify special rooms and intersections only after you have established which connector you are working toward.
Because HCZ has ten documented layouts, room order is a poor primary memory aid. Instead, learn to recognize the local landmark in front of you, then ask which stable connector it should lead toward. This approach also makes it easier to recover after a chase or a detour.
HCZ-to-EZ route logic
Entrance Zone is reached through checkpoints, not by searching for a surface elevator in the middle of HCZ. Begin by choosing a direction of travel and checking rooms for a checkpoint connection. There are two such connections, so a first unsuccessful search does not mean that the zone has no route; it means that the current path has not reached either connector yet. Once through a checkpoint, treat the area as EZ and change your navigation plan to the transport elevators.
Entrance Zone: the underground transition area
What makes EZ different
Entrance Zone is Subsection-01. It directly connects the facility’s transport elevators to the surface and has connection points to Heavy Containment, making it the transition area between the underground containment sections and the outside. Facility Guards are stationed here according to the official game description.
Rank #3
- [Low Noise High Fidelity] New bee guitar cord with 22AWG oxygen-free-copper center conductors provides enhanced signal transfer, the PVC insulation material and the high-density stranded copper double shield provide noise rejection for quiet operation
- [Ideal for Choice] New bee 1/4 straight and right angle metal connectors, ensures a secure connection in any instrument, pedal, or amp jack. L shape great fro on stage guitar stands
- [Wide Compatible] Suitable for mixer, power amplifier, microphone, effector, decoder, equalizer, electoronic organ, electric guitar, electric bass and other electronic equipments. Widely used in the installation of smart home, karaoke speaker, professional stage audio, etc
- [Easy Disassemble] Making incidental repairs quick and easy! Very nice, flexible cable
- [Dont Hesite to Order] 24 hours customer services and professional technology team are standing by
EZ is best understood as a transit layer. Its value for navigation is not a single famous room but the relationship between two connector types: checkpoints toward HCZ and transport elevators toward Surface.
Moving between HCZ and Surface
- From HCZ: pass through one of the HCZ checkpoints into EZ.
- Inside EZ: stop and establish that you have crossed into the transition zone before choosing a new direction.
- Toward Surface: locate the facility’s transport elevators.
- At the surface: reassess your objective using the surface’s evacuation and insertion locations rather than underground containment landmarks.
For the reverse trip, start at the surface transport elevator and use EZ as the staging area for the checkpoint route back toward HCZ. A player who searches for HCZ-style elevator systems after arriving in EZ can waste time; the zone’s most useful forward marker is the transport elevator, while the most useful backward marker is the checkpoint connection.
Surface Zone: extraction and reinforcement space
Gate-A and the elevator to EZ
Surface Zone is Site-02’s outermost security and receiving area. The official Surface page identifies Gate-A Surface as the main entrance and states that it contains an elevator to Entrance Zone. That elevator is the key underground connection when entering or leaving the facility through Gate-A.
Surface should not be treated as a fourth underground floor. Once you reach it, the navigation problem changes from finding containment connectors to identifying the relevant outdoor objective.
Do these 3 things before closing this tab:
1Fix the driver behind crashes, sound loss and screen glitches2Clear out junk files and repair common Windows errors3Scan for outdated or missing drivers - takes under a minuteEvacuation and insertion points
The official game overview places the evacuation point and the insertion points for Mobile Task Forces and Chaos Insurgents on Surface Zone. These are distinct reasons to be on the surface:
Rank #4
- Digital Family Calendar: BSIMB digital calendar wall touch screen puts an end to your chaotic life. Designed for busy families, the digital calendar keeps you organised and in step with your family. Assign different colours and tasks to each family member to make family scheduling easier and more intuitive.
- Easy Setup and Auto-Sync: Plug in, connect to WLAN and auto-syn your electric calendar in minutes. Digital wall calendar compatible with Google calendar, iCloud calendar, Outlook calendar, Cozi calendar and Yahoo calendar. Add events directly on the device or through the ecalendar app. Electronic calendar stays current whether you're at work or traveling—no manual updates needed.
- All-In-One Home Assistant: Smart calendar builds habits and encourage independence with personalised chores. Display daily meal plan to reduce the daily ‘What's for dinner?’ stress. To-do lists keep track of everything you want. Turning chores into valuable achievements with stars and rewards, making life easier and more enjoyable.
- Manage Anytime Anywhere: BSIMB electronic calendar for family stay connected with the powerful ecalendar app. Access and manage your digital wall calendar anytime, anywhere with free features like stars & rewards, photo screensaver, chore charts, meals plans, to-do lists etc. Electronic planner paid features like Magic Import tailor advanced tools for users with special needs.
- Stay in Touch with Loved Ones: Share photos or videos from your phone to electronic wall calendar with app, instantly update your life moment, and keep in touch with your family, especially those who are far away; you can also surprise your smart calendar digital wall by sending him a wish card; it's also great for keeping tech-illiterate elders in touch with the youngsters.
- Evacuation: the surface contains the facility’s evacuation point.
- Reinforcement: Mobile Task Forces and Chaos Insurgents use surface insertion points.
- Re-entry: Gate-A’s elevator provides the documented connection back to Entrance Zone.
The sources establish these functions but do not provide one universal distance or a guaranteed room-by-room path between them. Use the surface objective itself and the Gate-A elevator as your stable references.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How the four zones connect
| Starting area | Destination | Connector to seek | What changes after crossing |
|---|---|---|---|
| LCZ | HCZ | An elevator system connecting the two zones | Move from testing and personnel facilities into the SCP-containment area; HCZ has more variable room ordering |
| HCZ | EZ | One of two checkpoints | Move from containment navigation to a transit-and-security layout |
| EZ | Surface | A transport elevator | Move from the underground facility to outdoor extraction and reinforcement space |
| Surface | EZ | Gate-A Surface elevator | Return to the underground transition area before taking a checkpoint route toward HCZ |
A reliable orientation routine
Use this routine whenever you spawn, cross a connector, or lose track of your position:
Recommended Free Tools
- Name the zone. Decide whether the surroundings match LCZ testing and personnel operations, HCZ SCP containment, EZ transit, or Surface extraction.
- Find the zone’s stable reference. In LCZ, use the fixed Class-D Cells location; in HCZ, use elevator systems and checkpoints; in EZ, use checkpoints and transport elevators; on Surface, use Gate-A, evacuation, or insertion objectives.
- Choose one destination. Avoid wandering without deciding whether you are trying to reach LCZ, HCZ, EZ, or Surface.
- Travel by connector. Elevators and checkpoints are more dependable than room order across generated layouts.
- Re-identify after crossing. When a connector opens into another zone, discard assumptions from the previous zone and apply the new zone’s landmarks.
Using SLMAPS for a known server seed
What the tool does
SLMAPS is a third-party digital seed map viewer. You enter a server seed, and it renders room layouts and loot spawn locations for Light, Heavy, and Entrance zones. Its interface lets you switch between those zones. It is useful for studying a known seed, but it is not an official physical map product and should not be treated as an authoritative replacement for the game’s current map generation.
Seed-viewing workflow
- Obtain the exact server seed for the round or server you want to study.
- Enter that seed in SLMAPS using the tool’s seed input.
- Render the map and select Light, Heavy, or Entrance with the zone controls.
- Compare the generated room arrangement with the connector you need: the LCZ elevator, an HCZ checkpoint, or an EZ transport elevator.
- Use the displayed loot-spawn information as a study aid, not as a guarantee that an item will be available in every gameplay situation.
SLMAPS does not establish a Surface map in the documented feature set. For Surface navigation, continue to use the Gate-A elevator, evacuation point, and insertion-point objectives described by the official sources.
When a seed map does not match your round
- Check that the seed was copied exactly; a different seed produces a different arrangement.
- Confirm that you selected the correct zone in the viewer.
- Allow for game updates: documented layout counts and room details can change, and a third-party viewer may not immediately reflect a newer version.
- Use the viewer to learn relationships and landmarks, then verify the actual in-game connector before committing to a route.
Common navigation mistakes and fixes
Trying to memorize one complete route
There are five documented LCZ layouts and ten documented HCZ layouts, so a route that works in one arrangement may fail in another. Memorize connector types and dependable landmarks instead: the fixed Class-D Cells location in LCZ, elevators and checkpoints in HCZ, transport elevators in EZ, and Gate-A or the surface objectives outside.
Searching for Surface directly from HCZ
HCZ connects to EZ through checkpoints. Reach EZ first, then search for its transport elevators. Looking for an outdoor exit while still inside HCZ mixes two separate navigation stages.
Assuming every elevator has the same destination
The zone connections are not interchangeable. LCZ’s documented elevator systems connect with HCZ; EZ’s transport elevators connect with Surface; Gate-A Surface has an elevator to EZ. Identify the zone you are leaving and the connector type before entering.
Using a third-party viewer as a permanent authority
SLMAPS can help with a known seed, but it is not an official product. If the viewer and the current game disagree, check the seed, selected zone, and game version, then rely on the connector structure documented for the current release.
Expecting exact distances or a universal surface route
The available official descriptions define purposes and connections, not a guaranteed distance, room count, or single path through every generated map. Plan around what is stable and treat local room order as round-specific.
A practical zone-by-zone checklist
- LCZ: Locate or remember the fixed Class-D Cells landmark; then identify the elevator route toward HCZ.
- HCZ: Decide whether you need LCZ or EZ; use elevator systems for the former and one of the two checkpoints for the latter.
- EZ: Use checkpoints to understand the HCZ boundary and transport elevators to reach Surface.
- Surface: Identify whether your objective is evacuation, reinforcement insertion, or re-entry through Gate-A.
- Any zone: After crossing a connector, rename your zone and reset your landmark assumptions.
Bottom line
Site-02 becomes much easier to navigate when you stop treating it as one memorized maze. LCZ has five documented layouts but a fixed Class-D Cells landmark; HCZ has ten documented layouts, so its two elevator systems and two checkpoints matter more than room order; EZ is the checkpoint-and-transport transition layer; and Surface is the evacuation and reinforcement area anchored by Gate-A’s elevator. Learn those structural relationships, verify the connector in the current round, and use SLMAPS only when you have a known seed to study.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
