diff --git a/core/src/com/unciv/logic/civilization/CivilizationInfo.kt b/core/src/com/unciv/logic/civilization/CivilizationInfo.kt
index 7791ae6515..3439bc84c6 100644
--- a/core/src/com/unciv/logic/civilization/CivilizationInfo.kt
+++ b/core/src/com/unciv/logic/civilization/CivilizationInfo.kt
@@ -32,9 +32,11 @@ import com.unciv.models.ruleset.tile.ResourceSupplyList
 import com.unciv.models.ruleset.tile.ResourceType
 import com.unciv.models.ruleset.tile.TileResource
 import com.unciv.models.ruleset.unique.StateForConditionals
-import com.unciv.models.ruleset.unique.TemporaryUniques
+import com.unciv.models.ruleset.unique.TemporaryUnique
 import com.unciv.models.ruleset.unique.Unique
 import com.unciv.models.ruleset.unique.UniqueType
+import com.unciv.models.ruleset.unique.endTurn
+import com.unciv.models.ruleset.unique.getMatchingUniques
 import com.unciv.models.ruleset.unit.BaseUnit
 import com.unciv.models.stats.Stat
 import com.unciv.models.stats.Stats
@@ -43,7 +45,6 @@ import com.unciv.ui.utils.MayaCalendar
 import com.unciv.ui.utils.extensions.toPercent
 import com.unciv.ui.utils.extensions.withItem
 import com.unciv.ui.victoryscreen.RankingType
-import com.unciv.utils.concurrency.Concurrency
 import java.util.*
 import kotlin.math.max
 import kotlin.math.min
@@ -183,9 +184,12 @@ class CivilizationInfo : IsPartOfGameInfoSerialization {
 
     /** Arraylist instead of HashMap as the same unique might appear multiple times
      * We don't use pairs, as these cannot be serialized due to having no no-arg constructor
+     * We ALSO can't use a class inheriting from ArrayList<TemporaryUnique>() because ANNOYINGLY that doesn't pass deserialization
+     * So we fake it with extension functions in Unique.kt
+     *
      * This can also contain NON-temporary uniques but I can't be bothered to do the deprecation dance with this one
      */
-    val temporaryUniques = TemporaryUniques()
+    val temporaryUniques = ArrayList<TemporaryUnique>()
 
     // if we only use lists, and change the list each time the cities are changed,
     // we won't get concurrent modification exceptions.
diff --git a/core/src/com/unciv/models/ruleset/unique/Unique.kt b/core/src/com/unciv/models/ruleset/unique/Unique.kt
index 6749211b23..1a13003cd1 100644
--- a/core/src/com/unciv/models/ruleset/unique/Unique.kt
+++ b/core/src/com/unciv/models/ruleset/unique/Unique.kt
@@ -343,8 +343,7 @@ class TemporaryUnique() : IsPartOfGameInfoSerialization {
     var turnsLeft: Int = 0
 }
 
-class TemporaryUniques:ArrayList<TemporaryUnique>(){
-    fun endTurn() {
+fun ArrayList<TemporaryUnique>.endTurn() {
         for (unique in this) {
             if (unique.turnsLeft >= 0)
                 unique.turnsLeft -= 1
@@ -352,9 +351,9 @@ class TemporaryUniques:ArrayList<TemporaryUnique>(){
         removeAll { it.turnsLeft == 0 }
     }
 
-    fun getMatchingUniques(uniqueType: UniqueType, stateForConditionals: StateForConditionals): Sequence<Unique> {
+fun ArrayList<TemporaryUnique>.getMatchingUniques(uniqueType: UniqueType, stateForConditionals: StateForConditionals): Sequence<Unique> {
         return this.asSequence()
             .map { it.uniqueObject }
             .filter { it.isOfType(uniqueType) && it.conditionalsApply(stateForConditionals) }
     }
-}
+