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Operators
Richard Wilkes edited this page Sep 19, 2025
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Operators define how GCS compares values in fields for Prerequisites, Features, Defaults, Trait Modifiers, and Equipment Modifiers.
Some operators are used with text fields (names, notes, tags), while others are used with numbers (levels, modifiers).
| Operator | Works with | Description |
|---|---|---|
is anything |
Text, Number | Always passes |
is / is not
|
Text, Number | Matches exactly / does not match |
is at least / is at most
|
Number | Minimum or maximum value |
contains / does not contain
|
Text | Must include / must not include the value |
starts with / does not start with
|
Text | Must (not) begin with the value |
ends with / does not end with
|
Text | Must (not) end with the value |
- In Prerequisites, operators control how rules check for required traits, skills, or attributes.
- In Features, operators define how modifiers apply to skills, spells, or weapons.
- In Defaults, operators are used to set Tech Level rules.
Last updated for GCS v5.39
GURPS page references (example: B16) are provided for convenience. For full rules, see the relevant GURPS publications.
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