SCP Foundation

• Primary Sources
  • esoteric-class - An automated list of articles tagged with "esoteric-class", although it does not include all examples of esoteric classes.
  • Object Classes Guide
  • Threat Levels Guide (Hosted on the International Wiki.)
  • Anomaly Classification System (ACS) Guide
    • This also has an automated catalog (Jump?) of articles using ACS.
• u/Cooldude971's Guides - These go into much greater detail on the definitions and histories of various classes than this guide will.
  • Master list of non-standard object classes (Hosted on Reddit.)
  • Master list of canonized and lost non-standard object classes (Hosted on Reddit.)
  • Where object classes came from: a history (Hosted on Reddit.)
  • The Origin of Object Classes
• If you want more cool ACS secondary class icons
  • ACS Icon Catalogue - Collaborative list of all icons known to be in use for all esoteric classes.
• Object Class Flow Chart (Hosted on Reddit.)
• Esoteric Class Comprehensive Flow Chart (Advanced) (Hosted on Reddit. Contains every standard Object Class and every Esoteric-class present on this page.)
• List of Esoteric Class (Depreciated, hosted on KaktusKontainer.)
• SCP Object Classifications (A forum post; origin of several theoretical classes; linked for historical purposes.)

Given that additions to this guide are manual, it's very likely that some classes will slip through the cracks. If you have information on a class being improperly labeled in this guide, you can update it as appropriate!

How to Edit

In order to change something, scroll down to the "Edit" button at the bottom of the page and open the edit window. Please list a description of changes made in the "Short description of changes:" window.

Adding New Classes

Here's the code for an entry; place it alphabetically in the appropriate section.

||Class||Definition (if necessary)||[[[SCP]]]||

• It isn't Safe, Euclid, Keter, Thaumiel, Apollyon, Archon, Ticonderoga, Pending, Explained, Neutralized or Decomissioned.
  • Apollyon, Archon, Ticonderoga, Pending and Decomissioned were formerly eligible for this list, but have graduated and become standard.
• It isn't a dual class of standard object classes. A document labeled "Euclid/Keter" is not esoteric, but "Euclid/Cernunnos" is, and the article should be added to "Cernunnos" below.
• It isn't the same as another class. For example, "Esoteric" and "Other" are grouped together in the list below. This only extends to the similarity of definitions.
• It isn't in a joke article. Explained SCPs, tales, GOI formats, and everything else is fair game. Exceptions can be made for subclasses in joke articles that belong to an established subclass system.

That's it, really. There are some special cases for esoteric classes created by foreign branches, however. Namely:

• It isn't the result of third-party manipulation, anomalous or otherwise. These classes tend to be single-use and the purpose of including foreign classes is to increase cohesion between branches.
• It's a subclass. These should be added to the Subclasses section instead of the Foreign section.
• Its article has been translated. If this is the case, it is no longer considered a foreign class; treat it as a local one.

Adding Or Changing A Definition

Definitions are only valid if they're sourced from an article, from an author who has used the class or can be reasonably drawn from "general consensus" in the absence of a definition.

Generally, self-explanatory classes like "Uncontained" should not be given definitions. If a class' meaning can be reasonably inferred from its name, then leave the definition slot blank.

Precedents

• "N/A", "None", and "Unnecessary" are treated as separate classes due to slight variance in definitions.
• The "Location" subclass was added, despite having never been used, due to its necessity in completing the Type System.
• The multiple classes of SCP-4205 were grouped together.
• "Scarf" and "Youklid" were added, despite being misspellings of standard classes.
• The poetry in the Object Class fields of S. D. Locke's Proposal are not listed, because of their length and the proposal being listed under Apollyon already.
• SCP-5708 was listed under the -prodest subclass despite not using it as a subclass, per the author's request.

If you need any clarifications or have any questions, contact MAST.

Suffix System

The following subclasses are attached to standard classes (e.g. Safe-alterius) to denote attributes of the anomaly. Several of these classes lack established definitions; where this is the case, definitions have been inferred.

Type System

The following subclasses are used in conjunction with standard classes (e.g. Safe // Location) to denote the applicable method of containment.

Object/Containment System

The following subclasses are Object Classes, with traditional classes designated Containment Classes (e.g. Object Class: Artifact; Containment Class: Safe) They denote characteristics of the contained item and may be used in conjunction with one another (e.g. Artifact/Audiovisual).

Additional Systems

The following subclasses are used in a variety of formats and do not belong to a system that has been properly enunciated.

Anomaly Classification System Secondary Classes

The ACS adds two more class types to the usual Containment Class; Risk Class and Disruption Class. While both of these have their own five standard classes, esoteric forms of each do exist;

Theoretical esoteric Risk and Disruption classes can be found on Dr Moned's Icons and Art and ZackVMK's ACS Icon Page.