diff --git a/core/src/com/unciv/models/ruleset/unique/Conditionals.kt b/core/src/com/unciv/models/ruleset/unique/Conditionals.kt
index 0aa30e15f9fd4..30c436494e60c 100644
--- a/core/src/com/unciv/models/ruleset/unique/Conditionals.kt
+++ b/core/src/com/unciv/models/ruleset/unique/Conditionals.kt
@@ -132,6 +132,7 @@ object Conditionals {
             UniqueType.ConditionalAboveHappiness -> checkOnCiv { stats.happiness > conditional.params[0].toInt() }
             UniqueType.ConditionalBelowHappiness -> checkOnCiv { stats.happiness < conditional.params[0].toInt() }
             UniqueType.ConditionalGoldenAge -> checkOnCiv { goldenAges.isGoldenAge() }
+            UniqueType.ConditionalNotGoldenAge -> checkOnCiv { !goldenAges.isGoldenAge() }
 
             UniqueType.ConditionalBeforeEra -> compareEra(conditional.params[0]) { current, param -> current < param }
             UniqueType.ConditionalStartingFromEra -> compareEra(conditional.params[0]) { current, param -> current >= param }
diff --git a/core/src/com/unciv/models/ruleset/unique/UniqueType.kt b/core/src/com/unciv/models/ruleset/unique/UniqueType.kt
index b0c8c55b49035..50fccfc53657e 100644
--- a/core/src/com/unciv/models/ruleset/unique/UniqueType.kt
+++ b/core/src/com/unciv/models/ruleset/unique/UniqueType.kt
@@ -682,6 +682,7 @@ enum class UniqueType(
     ConditionalWar("when at war", UniqueTarget.Conditional),
     ConditionalNotWar("when not at war", UniqueTarget.Conditional),
     ConditionalGoldenAge("during a Golden Age", UniqueTarget.Conditional),
+    ConditionalNotGoldenAge("when not in a Golden Age", UniqueTarget.Conditional),
     ConditionalWLTKD("during We Love The King Day", UniqueTarget.Conditional),
 
     ConditionalHappy("while the empire is happy", UniqueTarget.Conditional),