diff --git a/android/Images.Flags/FlagIcons/Zulu.png b/android/Images.Flags/FlagIcons/Zulu.png
new file mode 100644
index 0000000000..46955253ac
Binary files /dev/null and b/android/Images.Flags/FlagIcons/Zulu.png differ
diff --git a/android/assets/Flags.atlas b/android/assets/Flags.atlas
index 30f4a4f60d..dc31c14470 100644
--- a/android/assets/Flags.atlas
+++ b/android/assets/Flags.atlas
@@ -139,7 +139,7 @@ FlagIcons/Korean
   index: -1
 FlagIcons/Latin
   rotate: false
-  xy: 1636, 168
+  xy: 1772, 304
   size: 100, 100
   orig: 100, 100
   offset: 0, 0
@@ -277,3 +277,10 @@ FlagIcons/Vietnamese
   orig: 128, 128
   offset: 0, 0
   index: -1
+FlagIcons/Zulu
+  rotate: false
+  xy: 1636, 140
+  size: 128, 128
+  orig: 128, 128
+  offset: 0, 0
+  index: -1
diff --git a/android/assets/Flags.png b/android/assets/Flags.png
index 7b305c7204..fc180b9d54 100644
Binary files a/android/assets/Flags.png and b/android/assets/Flags.png differ
diff --git a/android/assets/jsons/translations/completionPercentages.properties b/android/assets/jsons/translations/completionPercentages.properties
index 203db8f359..1bec1f6ddc 100644
--- a/android/assets/jsons/translations/completionPercentages.properties
+++ b/android/assets/jsons/translations/completionPercentages.properties
@@ -35,3 +35,4 @@ Traditional_Chinese = 92
 Turkish = 99
 Ukrainian = 99
 Vietnamese = 98
+Zulu = 0
diff --git a/core/src/com/unciv/models/metadata/GameSettings.kt b/core/src/com/unciv/models/metadata/GameSettings.kt
index d99933c936..5abeed1030 100644
--- a/core/src/com/unciv/models/metadata/GameSettings.kt
+++ b/core/src/com/unciv/models/metadata/GameSettings.kt
@@ -251,7 +251,17 @@ class GameSettings {
 
     enum class NationPickerListMode { Icons, List }
 
+    /** Map Unciv language key to Java locale, for the purpose of getting a Collator for sorting.
+     *  - Effect depends on the Java libraries and may not always conform to expectations.
+     *    If in doubt, debug and see what Locale instance you get and compare its properties with `Locale.getDefault()`.
+     *    (`Collator.getInstance(LocaleCode.*.run { Locale(language, country) }) to Collator.getInstance())`, drill to both `rules`, compare hashes - if equal and other properties equal, then Java doesn't know your Language))
+     *  @property name same as translation file name with ' ', '_', '-', '(', ')' removed
+     *  @property language ISO 639-1 code for the language
+     *  @property country ISO 3166 code for the nation this is predominantly spoken in
+     *  @property trueLanguage If set, used instead of language to trick Java into supplying a close-enough collator (a no-match would otherwise give us the default collator, not a collator for a partial match)
+     */
     enum class LocaleCode(val language: String, val country: String, val trueLanguage: String? = null) {
+        Afrikaans("af", "ZA"),
         Arabic("ar", "IQ"),
         Belarusian("be", "BY"),
         Bosnian("bs", "BA"),
@@ -297,7 +307,7 @@ class GameSettings {
         Turkish("tr", "TR"),
         Ukrainian("uk", "UA"),
         Vietnamese("vi", "VN"),
-        Afrikaans("af", "ZA")
+        Zulu("zu", "ZA")
     }
 
     //endregion
diff --git a/docs/Credits.md b/docs/Credits.md
index 5ce46ee369..af28f280b9 100644
--- a/docs/Credits.md
+++ b/docs/Credits.md
@@ -7,6 +7,7 @@ Flag Icons made by [Freepik](https://www.flaticon.com/authors/freepik) from [www
 -   [Catalan flag] by J0anJosep licensed under Public Domain
 -   [Rusyn flag] gimped from the wikipedia flag [Flag of Pannonian Rusyns](https://en.wikipedia.org/wiki/File:Flag_of_Rusyns_in_Serbia.svg) (CC-BY-SA 4.0)
 -   [Latin flag] made from [wikipedia entry for SPQR](https://en.wikipedia.org/wiki/SPQR#/media/File:Roman_SPQR_banner.svg), Creative Commons Attribution 3.0 Unported
+-   [Zulu flag] made from [wikipedia entry for the Z flag](https://en.wikipedia.org/wiki/Z_flag#/media/File:ICS_Zulu.svg): public domain
 
 New Unciv logo made by u-ndefined on Discord