diff --git a/core/assets/bundles/bundle.properties b/core/assets/bundles/bundle.properties
index c56546da49..fd4850a5d5 100644
--- a/core/assets/bundles/bundle.properties
+++ b/core/assets/bundles/bundle.properties
@@ -251,7 +251,8 @@ client.command.scanprocs.description = Scans every processor on the map, printin
 client.command.marker.description = Adds a marker with specified name at (x, y) or your current position if x and y are not specified
 client.command.marker.added = Successfully added a new marker at ({0}, {1})
 client.command.js.description = Runs JS on the client
-client.command.serverjs.description = Runs JS on the client as well as the server
+client.command.kt.description = Runs Kotlin Script on the client
+client.command.serverjs.description = Runs JS on the client as well as the server (runs !js & /js)
 client.command.networking.description = Check the current status of the client networking system
 client.command.fixpower.description = [accent]Connects all power grids (unless they're insulated or dioded)
 client.command.fixpower.success = [accent]Successfully connected {0} power grids in {2} configs {1} grids remain
diff --git a/core/assets/bundles/bundle_ja.properties b/core/assets/bundles/bundle_ja.properties
index a3a13ad5a8..6c4c1e52cb 100644
--- a/core/assets/bundles/bundle_ja.properties
+++ b/core/assets/bundles/bundle_ja.properties
@@ -82,8 +82,8 @@ client.sortedplans = 距離で建設キューを正常に並べ替えました
 client.freeze = 凍結
 client.confirmfreeze = {0}[white]を凍結/解凍しますか？現在の凍結状態は次のとおりです：{1}
 client.rollback.title = このプレイヤーの行動をロールバックしますか？
-client.banreason.title = バン理由
-client.banreason.body = このバンの理由を入力してください
+client.banreason.title = BANの理由
+client.banreason.body = このBANの理由を入力してください
 client.setupcomms = 通信用に使用
 client.setupcomms.confirm = このブロックを通信に使用しますか？
 client.attemwarn = ({1}, {2}) に {0} によって配置されたアテム
@@ -229,6 +229,7 @@ client.command.scanprocs.description = マップ上のすべてのプロセッ
 client.command.marker.description = 指定された名前のマーカーを (x, y) または現在の位置に追加します。x と y が指定されていない場合は現在の位置に追加されます
 client.command.marker.added = ({0}, {1}) に新しいマーカーを追加しました
 client.command.js.description = クライアントで JS を実行します
+client.command.kt.description = クライアントで Kotlin を実行します
 client.command.serverjs.description = サーバーとクライアントの両方で JS を実行します
 client.command.networking.description = 現在のクライアントネットワーキングシステムの状態を確認します
 client.command.fixpower.description = [accent]すべての電力グリッドを接続します（絶縁またはダイオード化されていない場合）
@@ -304,9 +305,9 @@ client.command.unmute.byid = [accent]プレイヤー ID {0}！
 client.command.unmute.notmuted = [scarlet]そのプレイヤーはミュートされていません！
 client.command.clearmutes.description = ミュートされたプレイヤーのリストをクリアします。
 client.command.clearmutes.success = [accent]ミュートされたプレイヤーのリストをクリアしました！
-client.command.autoohno.description = Runs the auto ohno procedure on fish servers
-client.command.autoohno.running = [accent]Running auto ohno
-client.command.seer.description = Clientside moderation utilities
+client.command.autoohno.description = fishサーバーで自動ohno手順を実行します
+client.command.autoohno.running = [accent]自動ohno実行中
+client.command.seer.description = クライアント側のモデレーションユーティリティ
 client.command.seer.disabled = [scarlet]設定で Seer を有効にしてください！
 client.command.admin.description = モデレーションコマンドと設定にアクセスします
 # End Client Commands
@@ -419,7 +420,7 @@ client.setting.showtoasts.name = トーストを表示
 client.setting.showtoasts.description = トーストの表示を無効にします。ClashGonesのトローリングを止めるのに便利
 client.setting.unloaderview.name = 搬出機の転送を表示
 client.setting.customnullunloader.name = カスタムヌルアンローダー
-client.setting.cursednesslevel.name = 呪い度
+client.setting.cursednesslevel.name = 呪いレベル
 client.setting.cursednesslevel.description = [scarlet]てんかん警告: OHNO以上の値\n(OHNOより上に対するてんかん警告)
 client.setting.showcutscenes.name = カットシーンを表示
 client.setting.logiclinkorder.name = リンク解除時にロジックリンク名を解放
diff --git a/core/src/mindustry/client/Commands.kt b/core/src/mindustry/client/Commands.kt
index fa076340c5..1b2dc67e02 100644
--- a/core/src/mindustry/client/Commands.kt
+++ b/core/src/mindustry/client/Commands.kt
@@ -1,6 +1,7 @@
 package mindustry.client
 
 import arc.*
+import arc.files.*
 import arc.func.*
 import arc.graphics.*
 import arc.math.*
@@ -202,11 +203,23 @@ fun setupCommands() {
         Log.debug(out)
     }
 
-    // Removed as the dependency was like 50MB. If i ever add this back, it will probably just download the jar when needed and then cache it between client builds so that each update isn't massive.
-//        val kts by lazy { ScriptEngineManager().getEngineByExtension("kts") }
-//        register("kts <code...>", Core.bundle.get("client.command.kts.description")) { args, player: Player ->
-//            player.sendMessage("[accent]${try{ kts.eval(args[0]) }catch(e: ScriptException){ e.message }}")
-//        }
+    var installingKt = false
+    // This command doesn't work unless the supporting jar file is on the class path
+    register("kt <code...>", Core.bundle.get("client.command.kts.description")) { args, player: Player ->
+        try { ScriptEngineHolder } catch (_: Throwable) { player.sendMessage("[scarlet]The current java install does not support scripting. Please install a full jvm"); return@register }
+
+        if (installingKt) player.sendMessage("[scarlet]Already installing kotlin script support")
+            if (ScriptEngineHolder.kts == null) ui.showConfirm("It seems that you do not have kotlin script support installed. Would you like to download it? (~60MB)") { // FINISHME: Bundle
+            installingKt = true
+            becontrol.downloadJar(
+                "https://github.com/mindustry-antigrief/kotlinScriptSupport/releases/latest/download/fooKotlinScriptSupport.jar",
+                Fi(ScriptEngineHolder::class.java.protectionDomain.codeSource.location.toURI().path).sibling("fooKotlinScriptSupport.jar"),
+                { ui.showConfirm("Finished downloading kotlin script support. You must restart the game to use it. Restart now?") { restartGame() } },
+                { player.sendMessage("[scarlet]Problem downloading kotlin script support ${it.printStackTrace()}") }
+            )
+        }
+        player.sendMessage("[accent]${try { ScriptEngineHolder.kts?.eval(args[0]) ?: return@register } catch (e: Throwable /* ScriptException */) { e.message }}")
+    }
 
     register("/js <code...>", Core.bundle.get("client.command.serverjs.description")) { args, player ->
         player.sendMessage("[accent]${mods.scripts.runConsole(args[0])}")
@@ -754,7 +767,7 @@ fun setupCommands() {
             val current = ui.join.lastHost ?: return@register
             if (current.group == null) current.group = ui.join.communityHosts.find { it == current } ?.group ?: return@register
             switchTo = ui.join.communityHosts.filterTo(arrayListOf<Any>()) { it.group == current.group && it != current && (it.version == Version.build || Version.build == -1) }.apply { add(current); add(u) }
-            val first = switchTo!!.removeFirst() as Host
+            val first = switchTo!!.removeAt(0) as Host
             NetClient.connect(first.address, first.port)
         }
 
diff --git a/core/src/mindustry/client/ScriptEngineHolder.kt b/core/src/mindustry/client/ScriptEngineHolder.kt
new file mode 100644
index 0000000000..f4149d021e
--- /dev/null
+++ b/core/src/mindustry/client/ScriptEngineHolder.kt
@@ -0,0 +1,8 @@
+package mindustry.client
+
+import javax.script.ScriptEngine
+import javax.script.ScriptEngineManager
+
+object ScriptEngineHolder {
+    val kts: ScriptEngine? by lazy { ScriptEngineManager().getEngineByExtension("kts") }
+}
\ No newline at end of file
diff --git a/core/src/mindustry/client/antigrief/Moderation.kt b/core/src/mindustry/client/antigrief/Moderation.kt
index ecbc54562b..03f7f34319 100644
--- a/core/src/mindustry/client/antigrief/Moderation.kt
+++ b/core/src/mindustry/client/antigrief/Moderation.kt
@@ -1,6 +1,7 @@
 package mindustry.client.antigrief
 
 import arc.*
+import arc.struct.*
 import arc.util.*
 import arc.util.serialization.*
 import mindustry.*
@@ -101,15 +102,19 @@ class Moderation {
             // Dont send in admin chat as it can get spammy
 //            if (info.timesJoined > 10 && info.timesKicked < 3) Vars.player.sendMessage("[accent]${player.name}[accent] has joined ${info.timesJoined-1} times before, they have been kicked ${info.timesKicked} times")
 //            else sendMessage("/a [scarlet]${player.name}[scarlet] has joined ${info.timesJoined-1} times before, they have been kicked ${info.timesKicked} times")
-            Vars.player.sendMessage("[scarlet]${player.name}[scarlet] has joined ${info.timesJoined-1} times before, they have been kicked ${info.timesKicked} times")
+            Vars.player.sendMessage("[scarlet]${player.name} [scarlet]has joined ${info.timesJoined-1} times before, they have been kicked ${info.timesKicked} times")
         }
 
+        // These next three lines are the laziest way of deduplicating the messages but it works so we don't really care.
+        val ids = ObjectSet<String>()
+        val ips = ObjectSet<String>()
+        val names = ObjectSet<String>()
         for (n in traces.size - 1 downTo 0) {
             val i = traces[n]
             if (i.trace.ip == info.uuid || i.trace.ip == info.ip) { // Update info
-                if (i.trace.uuid != info.uuid) Vars.player.sendMessage("[scarlet]${player.name}[scarlet] has changed UUID: ${i.trace.uuid} -> ${info.uuid}")
-                if (i.trace.ip != info.ip) Vars.player.sendMessage("[scarlet]${player.name}[scarlet] has changed IP: ${i.trace.ip} -> ${info.ip}")
-                if (i.name != player.name) Vars.player.sendMessage("[scarlet]${player.name}[scarlet] has changed name, was previously: ${i.name}")
+                if (i.trace.uuid != info.uuid && ids.add(i.trace.uuid)) Vars.player.sendMessage("[scarlet]${player.name} [scarlet]has changed UUID: ${i.trace.uuid} -> ${info.uuid}")
+                if (i.trace.ip != info.ip && ips.add(i.trace.ip)) Vars.player.sendMessage("[scarlet]${player.name} [scarlet]has changed IP: ${i.trace.ip} -> ${info.ip}")
+                if (i.name != player.name && names.add(i.name)) Vars.player.sendMessage("[scarlet]${player.name} [scarlet]has changed name, was previously: ${i.name}")
             }
         }
 
diff --git a/core/src/mindustry/net/BeControl.java b/core/src/mindustry/net/BeControl.java
index 005c4066a7..0426c82a1c 100644
--- a/core/src/mindustry/net/BeControl.java
+++ b/core/src/mindustry/net/BeControl.java
@@ -151,6 +151,11 @@ public void showUpdateDialog(){
         }
     }
 
+    /** Convenience method to download a jar so that this doesn't need to get copied multiple times */
+    public void downloadJar(String url, Fi dest, Runnable done, Cons<Throwable> error){
+        download(url, dest, l -> {}, p -> {}, () -> false, done, error);
+    }
+
     private void download(String furl, Fi dest, Intc length, Floatc progressor, Boolp canceled, Runnable done, Cons<Throwable> error){
         mainExecutor.submit(() -> {
             try{
diff --git a/desktop/build.gradle b/desktop/build.gradle
index f88865db83..7a98fca03b 100644
--- a/desktop/build.gradle
+++ b/desktop/build.gradle
@@ -64,7 +64,7 @@ task dist(type: Jar, dependsOn: configurations.runtimeClasspath){
 
     manifest{
         attributes 'Main-Class': project.mainClassName
-        attributes 'Class-Path': "bcprov-jdk15on.jar bcpkix-jdk15on.jar bctls-jdk15on.jar bcutil-jdk15on.jar"
+        attributes 'Class-Path': "bcprov-jdk15on.jar bcpkix-jdk15on.jar bctls-jdk15on.jar bcutil-jdk15on.jar fooKotlinScriptSupport.jar"
     }
 }