diff --git a/build.gradle b/build.gradle
index 64bab1e3..72df0589 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,7 +5,7 @@ plugins {
 }
 
 group = 'org.cubewhy.celestial'
-version = '1.4-pre1-SNAPSHOT'
+version = '1.4-pre2-SNAPSHOT'
 
 println('Java: ' + System.getProperty('java.version') + ' JVM: ' + System.getProperty('java.vm.version') + '(' + System.getProperty('java.vendor') + ') Arch: ' + System.getProperty('os.arch'))
 println('Celestial Launcher -> https://www.lunarclient.top/')
diff --git a/src/main/java/org/cubewhy/celestial/gui/pages/GuiSettings.java b/src/main/java/org/cubewhy/celestial/gui/pages/GuiSettings.java
index 44bc1947..c52b1aae 100644
--- a/src/main/java/org/cubewhy/celestial/gui/pages/GuiSettings.java
+++ b/src/main/java/org/cubewhy/celestial/gui/pages/GuiSettings.java
@@ -9,6 +9,7 @@
 import org.cubewhy.celestial.utils.GuiUtils;
 import org.cubewhy.celestial.utils.SystemUtils;
 import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 
 import javax.swing.*;
 import javax.swing.border.TitledBorder;
@@ -194,6 +195,35 @@ private void initGui() {
         claim("installation-dir");
         claim("game-dir");
 
+        // addon
+        JPanel panelAddon = new JPanel();
+        panelAddon.setLayout(new VerticalFlowLayout(VerticalFlowLayout.LEFT));
+        panelAddon.setBorder(new TitledBorder(null, f.getString("gui.settings.addon"), TitledBorder.DEFAULT_JUSTIFICATION, TitledBorder.DEFAULT_POSITION, null, Color.orange));
+        JPanel p10 = new JPanel();
+        ButtonGroup btnGroup = new ButtonGroup();
+        JRadioButton btnLoaderUnset = new JRadioButton(f.getString("gui.settings.addon.loader.unset"), isLoaderSelected(null));
+        btnGroup.add(btnLoaderUnset);
+        JRadioButton btnWeave = new JRadioButton("Weave", isLoaderSelected("weave"));
+        btnGroup.add(btnWeave);
+        JRadioButton btnLunarCN = new JRadioButton("LunarCN", isLoaderSelected("cn"));
+        btnGroup.add(btnLunarCN);
+        btnLoaderUnset.addActionListener((e) -> {
+            // make weave & cn = false
+            toggleLoader(null);
+        });
+        btnWeave.addActionListener((e) -> {
+            toggleLoader("weave");
+        });
+        btnLunarCN.addActionListener((e) -> {
+            toggleLoader("cn");
+        });
+        p10.add(btnLoaderUnset);
+        p10.add(btnWeave);
+        p10.add(btnLunarCN);
+        panelAddon.add(p10);
+
+        claim("addon", panelAddon);
+
         JPanel panelUnclaimed = new JPanel();
         panelUnclaimed.setBorder(new TitledBorder(null, f.getString("gui.settings.unclaimed"), TitledBorder.DEFAULT_JUSTIFICATION, TitledBorder.DEFAULT_POSITION, null, Color.orange));
         panelUnclaimed.setLayout(new VerticalFlowLayout(VerticalFlowLayout.LEFT));
@@ -201,6 +231,54 @@ private void initGui() {
         panel.add(panelUnclaimed);
     }
 
+    /**
+     * Toggle loader
+     *
+     * @param type null, cn, weave
+     */
+    private void toggleLoader(@Nullable String type) {
+        boolean b1 = false; // weave
+        boolean b2 = false; // lccn
+        if (type != null) {
+            if (type.equals("cn")) {
+                b2 = true;
+            } else if (type.equals("weave")) {
+                b1 = true;
+            }
+        }
+        JsonObject addon = config.getValue("addon").getAsJsonObject();
+        JsonObject weave = addon.get("weave").getAsJsonObject();
+        JsonObject cn = addon.get("lunarcn").getAsJsonObject();
+        weave.addProperty("enable", b1);
+        cn.addProperty("enable", b2);
+        config.save();
+    }
+
+    private boolean isLoaderSelected(String type) {
+        JsonObject addon = config.getValue("addon").getAsJsonObject();
+        JsonObject weave = addon.get("weave").getAsJsonObject();
+        JsonObject cn = addon.get("lunarcn").getAsJsonObject();
+        boolean stateWeave = weave.get("enable").getAsBoolean();
+        boolean stateCN = cn.get("enable").getAsBoolean();
+        if (stateWeave && stateCN && type != null) {
+            // correct it
+
+            log.warn("Weave cannot load with LunarCN, auto corrected");
+            weave.addProperty("enable", false);
+            cn.addProperty("enable", false);
+            config.save();
+            return isLoaderSelected(null);
+        }
+        if (type == null) {
+            return !(stateWeave || stateCN);
+        } else if (type.equals("weave")) {
+            return stateWeave;
+        } else if (type.equals("cn")) {
+            return stateCN;
+        }
+        return false;
+    }
+
     private void addUnclaimed(JPanel basePanel, @NotNull JsonObject json) {
         for (Map.Entry<String, JsonElement> s : json.entrySet()) {
             if (!claimed.contains(s.getKey())) {
diff --git a/src/main/resources/languages/launcher.properties b/src/main/resources/languages/launcher.properties
index 10b9b125..9d4f0548 100644
--- a/src/main/resources/languages/launcher.properties
+++ b/src/main/resources/languages/launcher.properties
@@ -160,4 +160,6 @@ gui.plugin.title=Plugins
 gui.plugin.refresh=Refresh
 gui.plugins.download=Download %s
 gui.plugin.unsupported=You are using an API that does not support the plugin market (e.g. the official API), so there is nothing here
-gui.plugin.exist=Exist
\ No newline at end of file
+gui.plugin.exist=Exist
+gui.settings.addon=Addon
+gui.settings.addon.loader.unset=Unset
\ No newline at end of file
diff --git a/src/main/resources/languages/launcher_en.properties b/src/main/resources/languages/launcher_en.properties
index 61e30355..76fa5614 100644
--- a/src/main/resources/languages/launcher_en.properties
+++ b/src/main/resources/languages/launcher_en.properties
@@ -160,4 +160,6 @@ gui.plugin.title=Plugins
 gui.plugin.refresh=Refresh
 gui.plugins.download=Download %s
 gui.plugin.unsupported=You are using an API that does not support the plugin market (e.g. the official API), so there is nothing here
-gui.plugin.exist=Exist
\ No newline at end of file
+gui.plugin.exist=Exist
+gui.settings.addon=Addon
+gui.settings.addon.loader.unset=Unset
\ No newline at end of file
diff --git a/src/main/resources/languages/launcher_zh.properties b/src/main/resources/languages/launcher_zh.properties
index 07ddfcd0..499e77c8 100644
--- a/src/main/resources/languages/launcher_zh.properties
+++ b/src/main/resources/languages/launcher_zh.properties
@@ -159,4 +159,6 @@ gui.plugin.title=插件市场
 gui.plugin.refresh=刷新
 gui.plugins.download=下载 %s
 gui.plugin.unsupported=你正在使用不支持插件市场的API(例如官方API),所以此处什么都没有
-gui.plugin.exist=已存在
\ No newline at end of file
+gui.plugin.exist=已存在
+gui.settings.addon=加载项
+gui.settings.addon.loader.unset=不使用模组加载器
\ No newline at end of file