Object Classes by The SCP Foundation Lyrics
"All anomalous objects, entities, and phenomena requiring Special Containment Procedures are assigned an Object Class for purposes of research priority, budgeting, and other considerations. The class assigned to an object is generally determined by a number of factors, but most importantly by a combination of its difficulty to contain as well as the danger posed to Foundation personnel and humanity at large.
A particular anomaly's classification is subject to update and modification as research and our understanding of the object, entity, or phenomenon improves.
Primary Classes
These are the most common Object Classes assigned to anomalies, and make up the bulk of the Foundation's database.
Safe
Safe-class objects are those anomalies that are either sufficiently understood that they are now completely and reliably contained on a permanent basis or otherwise do not trigger their anomalous effects unless intentionally activated.
Classifying an anomaly as Safe, however, does not mean that handling or activating it does not pose a threat, and personnel are to be reminded that all Special Containment Procedures and safety protocols are to be observed at all times.
Below is a list of the 25 highest-rated Safe-class articles on the site:
- Hide list
SCP-1981
SCP-914
SCP-1733
SCP-999
SCP-1370
SCP-993
SCP-085
SCP-348
SCP-1437
SCP-1867
SCP-1425
SCP-028
SCP-507
SCP-504
SCP-586
SCP-1230
SCP-261
SCP-1193
SCP-1545
SCP-1470
SCP-1057
SCP-1958
SCP-1025
SCP-662
SCP-1050
For a complete list of Safe-class articles on the site, click here
Euclid
Euclid-class objects are anomalies that are either insufficiently understood or inherently unpredictable, such that reliable containment is not always possible, but do not pose sufficient threat to qualify for Keter classification. The vast majority of anomalies cataloged and contained by the Foundation are initially classified as Euclid until they are either sufficiently understood or exhibit sufficient danger to qualify for reclassification.
In particular, any anomaly that exhibits autonomy, sentience and/or sapience is generally classified a Euclid-class entity at minimum, due to the inherent unpredictability of an object that can act or think on its own.
Below is a list of the 25 highest-rated Euclid-class articles on the site:
- Hide list
SCP-173
SCP-087
SCP-093
SCP-426
SCP-895
SCP-1171
SCP-096
SCP-294
SCP-049
Dr Clef's Proposal
SCP-701
SCP-2998
SCP-1893
SCP-002
SCP-186
SCP-3001
SCP-184
SCP-1471
SCP-1342
SCP-004
SCP-342
SCP-963
SCP-079
SCP-1609
SCP-015
For a complete list of Euclid-class articles on the site, click here
Keter
Keter-class objects are anomalies that pose an inherently serious threat to the safety of Foundation personnel and the rest of mankind and either require extensive and complex procedures to contain or cannot be fully contained by the Foundation's current technology and knowledge.
These anomalies are generally considered the most dangerous ones in Foundation containment, and all research efforts are directed towards enabling more reliable containment of such anomalies or, as a last resort, the timely neutralization or destruction of its anomalous effects.
Below is a list of the 25 highest-rated Keter-class articles on the site:
- Hide list
●●|●●●●●|●●|●
SCP-055
SCP-682
SCP-231
SCP-902
SCP-106
SCP-1048
Dr Clef's Proposal
SCP-1000
SCP-2006
SCP-1983
SCP-140
SCP-354
S Andrew Swann's Proposal
SCP-990
SCP-1440
SCP-1322
SCP-610
SCP-871
SCP-2030
SCP-035
SCP-076
SCP-2935
SCP-1295
SCP-835
For a complete list of Keter-class articles on the site, click here
Secondary Classes
The following Object Classes are sub-classes that supplement the object's primary (or former) classification.
Neutralized
Neutralized anomalies are those that are no longer anomalous, either through having been intentionally or accidentally destroyed, disabled, or otherwise no longer function or exhibit anomalous effects.
The documentation for Neutralized anomalies is archived for posterity in case the anomaly regains its anomalous properties or otherwise recurs in the future.
Below is a list of the 25 highest-rated Neutralized-class articles on the site:
- Hide list
SCP-1983
SCP-1470
SCP-1730
SCP-3999
SCP-2682
SCP-1522
SCP-1422
SCP-3519
SCP-1762
SCP-1682
SCP-2480
SCP-2002
SCP-2420
SCP-3240
SCP-711-EX
SCP-1241
SCP-2282
SCP-407
SCP-2308
SCP-2610
SCP-1287
SCP-818
SCP-821
SCP-3017
SCP-696
For a complete list of Neutralized-class articles on the site, click here.
Explained
Explained anomalies are those that are completely and fully understood to the point where their effects are now explainable by mainstream science, have been debunked as a false or mistaken classification, or are so widespread and publicly disseminated such that containment is no longer possible.
For a complete list of Explained-class articles on the site, click here.
Esoteric Classes
The following Object Classes fall outside of the purview of standard classification.
Thaumiel
Thaumiel-class objects are highly classified and extremely rare anomalies that are utilized by the Foundation to contain or counteract the effects of other highly dangerous anomalies, especially Keter-class objects. Even the mere existence of Thaumiel-class objects is classified at the highest levels of the Foundation and their locations, functions, and current status are known to few Foundation personnel outside of the O5 Council.
For a complete list of Thaumiel-class articles on the site, click here.
What is an Object Class?
An Object Class is a part of the standard SCP template and a rough indicator of an object's difficulty to contain and danger posed.
What is the Locked Box Test?
The Locked Box Test is an informal guideline used to determine an object's most appropriate Object Class. It goes like this:
If you lock it in a box, leave it alone, and nothing bad will happen, then it's probably Safe.
If you lock it in a box, leave it alone, and you're not entirely sure what will happen, then it's probably Euclid.
If you lock it in a box, leave it alone, and all hell breaks loose, then it's probably Keter.
As of the inclusion of Thaumiel as a generally accepted Object Class, the following has also been appended to the Locked Box Test:
If it is the box, then it's probably Thaumiel.
Note that as a special consideration, something that is autonomous, alive, and/or sapient is almost always at least Euclid-class. That is, if you lock a living thing in a box and forget about it, it will eventually suffocate or starve to death, and that's not a good outcome. Something that is intelligent could also end up being smart enough to outwit our containment procedures and/or stop cooperating with our attempts to contain it, making it more dangerous than it otherwise might be.
What is Thaumiel, anyways?
First introduced in SCP-001: Keter Duty and most famously used in SCP-2000, Thaumiel-class objects are either capable of containing or counteracting SCP objects or dealing with the aftermath of an uncontrolled containment breach either by retroactively altering history or otherwise "resetting" reality such that the disaster never occurred.
As with all parts of the Foundation narrative, selective canon means that you do not necessarily have to address the existence of any particular piece thereof. Many authors choose not to believe in Thaumiel-class objects, and you are free to write with or without the implications of their existence.
What is a Decommissioned object?
Decommissioned SCPs are a non-canon Object Class that was used by senior staff in the past to not only delete unwanted articles but place them in a sort of "Wall of Shame" to serve as examples of what not to do.
Decommissioning articles is generally not done anymore, partly because such heavy-handed edits by SCP staff are no longer done and partly because decommissioning ended up backfiring. See the History of the Universe Hub for more historical information about Decommissioned SCPs and their usage in the past.
What about other Object Classes?
It is highly recommended that objects use one of the standard Object Classes listed here. While some authors choose to introduce exceptions to these rules, they are only very rarely done and are considered a form of "format screw", and thus need to justify their existence and placement. Many site members will downvote for non-standard Object Classes if used without merit.
What if I find an SCP that is the wrong Object Class?
The Object Classes are intentionally left vague as to not limit the author's creative freedom; a rigid, defined system of classes might hinder an author's ability to write the way they would want to, and as such multiple proposals to create better-defined systems in the past have been turned down by SCP Wiki staff.
If you find an SCP article that you feel might be inappropriately classified, feel free to raise discussion on the topic and see what other community members think. If the explanation is not to your satisfaction, then feel free to express your opinion on the matter and vote accordingly on the page."
A particular anomaly's classification is subject to update and modification as research and our understanding of the object, entity, or phenomenon improves.
Primary Classes
These are the most common Object Classes assigned to anomalies, and make up the bulk of the Foundation's database.
Safe
Safe-class objects are those anomalies that are either sufficiently understood that they are now completely and reliably contained on a permanent basis or otherwise do not trigger their anomalous effects unless intentionally activated.
Classifying an anomaly as Safe, however, does not mean that handling or activating it does not pose a threat, and personnel are to be reminded that all Special Containment Procedures and safety protocols are to be observed at all times.
Below is a list of the 25 highest-rated Safe-class articles on the site:
- Hide list
SCP-1981
SCP-914
SCP-1733
SCP-999
SCP-1370
SCP-993
SCP-085
SCP-348
SCP-1437
SCP-1867
SCP-1425
SCP-028
SCP-507
SCP-504
SCP-586
SCP-1230
SCP-261
SCP-1193
SCP-1545
SCP-1470
SCP-1057
SCP-1958
SCP-1025
SCP-662
SCP-1050
For a complete list of Safe-class articles on the site, click here
Euclid
Euclid-class objects are anomalies that are either insufficiently understood or inherently unpredictable, such that reliable containment is not always possible, but do not pose sufficient threat to qualify for Keter classification. The vast majority of anomalies cataloged and contained by the Foundation are initially classified as Euclid until they are either sufficiently understood or exhibit sufficient danger to qualify for reclassification.
In particular, any anomaly that exhibits autonomy, sentience and/or sapience is generally classified a Euclid-class entity at minimum, due to the inherent unpredictability of an object that can act or think on its own.
Below is a list of the 25 highest-rated Euclid-class articles on the site:
- Hide list
SCP-173
SCP-087
SCP-093
SCP-426
SCP-895
SCP-1171
SCP-096
SCP-294
SCP-049
Dr Clef's Proposal
SCP-701
SCP-2998
SCP-1893
SCP-002
SCP-186
SCP-3001
SCP-184
SCP-1471
SCP-1342
SCP-004
SCP-342
SCP-963
SCP-079
SCP-1609
SCP-015
For a complete list of Euclid-class articles on the site, click here
Keter
Keter-class objects are anomalies that pose an inherently serious threat to the safety of Foundation personnel and the rest of mankind and either require extensive and complex procedures to contain or cannot be fully contained by the Foundation's current technology and knowledge.
These anomalies are generally considered the most dangerous ones in Foundation containment, and all research efforts are directed towards enabling more reliable containment of such anomalies or, as a last resort, the timely neutralization or destruction of its anomalous effects.
Below is a list of the 25 highest-rated Keter-class articles on the site:
- Hide list
●●|●●●●●|●●|●
SCP-055
SCP-682
SCP-231
SCP-902
SCP-106
SCP-1048
Dr Clef's Proposal
SCP-1000
SCP-2006
SCP-1983
SCP-140
SCP-354
S Andrew Swann's Proposal
SCP-990
SCP-1440
SCP-1322
SCP-610
SCP-871
SCP-2030
SCP-035
SCP-076
SCP-2935
SCP-1295
SCP-835
For a complete list of Keter-class articles on the site, click here
Secondary Classes
The following Object Classes are sub-classes that supplement the object's primary (or former) classification.
Neutralized
Neutralized anomalies are those that are no longer anomalous, either through having been intentionally or accidentally destroyed, disabled, or otherwise no longer function or exhibit anomalous effects.
The documentation for Neutralized anomalies is archived for posterity in case the anomaly regains its anomalous properties or otherwise recurs in the future.
Below is a list of the 25 highest-rated Neutralized-class articles on the site:
- Hide list
SCP-1983
SCP-1470
SCP-1730
SCP-3999
SCP-2682
SCP-1522
SCP-1422
SCP-3519
SCP-1762
SCP-1682
SCP-2480
SCP-2002
SCP-2420
SCP-3240
SCP-711-EX
SCP-1241
SCP-2282
SCP-407
SCP-2308
SCP-2610
SCP-1287
SCP-818
SCP-821
SCP-3017
SCP-696
For a complete list of Neutralized-class articles on the site, click here.
Explained
Explained anomalies are those that are completely and fully understood to the point where their effects are now explainable by mainstream science, have been debunked as a false or mistaken classification, or are so widespread and publicly disseminated such that containment is no longer possible.
For a complete list of Explained-class articles on the site, click here.
Esoteric Classes
The following Object Classes fall outside of the purview of standard classification.
Thaumiel
Thaumiel-class objects are highly classified and extremely rare anomalies that are utilized by the Foundation to contain or counteract the effects of other highly dangerous anomalies, especially Keter-class objects. Even the mere existence of Thaumiel-class objects is classified at the highest levels of the Foundation and their locations, functions, and current status are known to few Foundation personnel outside of the O5 Council.
For a complete list of Thaumiel-class articles on the site, click here.
What is an Object Class?
An Object Class is a part of the standard SCP template and a rough indicator of an object's difficulty to contain and danger posed.
What is the Locked Box Test?
The Locked Box Test is an informal guideline used to determine an object's most appropriate Object Class. It goes like this:
If you lock it in a box, leave it alone, and nothing bad will happen, then it's probably Safe.
If you lock it in a box, leave it alone, and you're not entirely sure what will happen, then it's probably Euclid.
If you lock it in a box, leave it alone, and all hell breaks loose, then it's probably Keter.
As of the inclusion of Thaumiel as a generally accepted Object Class, the following has also been appended to the Locked Box Test:
If it is the box, then it's probably Thaumiel.
Note that as a special consideration, something that is autonomous, alive, and/or sapient is almost always at least Euclid-class. That is, if you lock a living thing in a box and forget about it, it will eventually suffocate or starve to death, and that's not a good outcome. Something that is intelligent could also end up being smart enough to outwit our containment procedures and/or stop cooperating with our attempts to contain it, making it more dangerous than it otherwise might be.
What is Thaumiel, anyways?
First introduced in SCP-001: Keter Duty and most famously used in SCP-2000, Thaumiel-class objects are either capable of containing or counteracting SCP objects or dealing with the aftermath of an uncontrolled containment breach either by retroactively altering history or otherwise "resetting" reality such that the disaster never occurred.
As with all parts of the Foundation narrative, selective canon means that you do not necessarily have to address the existence of any particular piece thereof. Many authors choose not to believe in Thaumiel-class objects, and you are free to write with or without the implications of their existence.
What is a Decommissioned object?
Decommissioned SCPs are a non-canon Object Class that was used by senior staff in the past to not only delete unwanted articles but place them in a sort of "Wall of Shame" to serve as examples of what not to do.
Decommissioning articles is generally not done anymore, partly because such heavy-handed edits by SCP staff are no longer done and partly because decommissioning ended up backfiring. See the History of the Universe Hub for more historical information about Decommissioned SCPs and their usage in the past.
What about other Object Classes?
It is highly recommended that objects use one of the standard Object Classes listed here. While some authors choose to introduce exceptions to these rules, they are only very rarely done and are considered a form of "format screw", and thus need to justify their existence and placement. Many site members will downvote for non-standard Object Classes if used without merit.
What if I find an SCP that is the wrong Object Class?
The Object Classes are intentionally left vague as to not limit the author's creative freedom; a rigid, defined system of classes might hinder an author's ability to write the way they would want to, and as such multiple proposals to create better-defined systems in the past have been turned down by SCP Wiki staff.
If you find an SCP article that you feel might be inappropriately classified, feel free to raise discussion on the topic and see what other community members think. If the explanation is not to your satisfaction, then feel free to express your opinion on the matter and vote accordingly on the page."