diff --git a/Editor/UnityBuilderHelper.cs b/Editor/UnityBuilderHelper.cs
index 8ce0b51..bb62235 100644
--- a/Editor/UnityBuilderHelper.cs
+++ b/Editor/UnityBuilderHelper.cs
@@ -1,5 +1,6 @@
 using System.Collections.Generic;
 using System.IO;
+using System.Text;
 using NiceJson;
 using UnityEditor;
 using UnityEditor.Build.Reporting;
@@ -1084,6 +1085,95 @@ void InitColors() {
             }
         }
 
+        /// <summary>
+        /// Assmble project by command line
+        /// </summary>
+        static void Assemble() {
+            string[] args = System.Environment.GetCommandLineArgs();
+            Dictionary<string, string> param = new Dictionary<string, string>();
+            for (int i = 1; i < args.Length - 1; i++) {
+                string key = (args[i][0].Equals('-')) ? args[i].Substring(1) : "";
+                if (!string.IsNullOrEmpty(key) && !args[i + 1][0].Equals('-')) {
+                    param.Add(key, args[i + 1]);
+                }
+            }
+            JsonObject info = new JsonObject();
+            PlatformType platform = PlatformType.UNKNOWN;
+            switch (param["platform"]) {
+                case "ios":
+                    platform = PlatformType.IOS;
+                    break;
+                case "google":
+                    platform = PlatformType.GOOGLE;
+                    break;
+                case "huawei":
+                    platform = PlatformType.HUAWEI;
+                    break;
+                case "webgl":
+                    platform = PlatformType.WEB;
+                    break;
+                default:
+                    break;
+            }
+            string list = UBHPrefs.GetString(LOGGER_KEY);
+            string defines = param["defines"];
+            string path = param["output"];
+            string postfix = "";
+            BuildTargetGroup group = BuildTargetGroup.Unknown;
+            BuildTarget target = BuildTarget.iOS;
+            switch (platform) {
+                case PlatformType.IOS:
+                    group = BuildTargetGroup.iOS;
+                    target = BuildTarget.iOS;
+                    info["code"] = PlayerSettings.iOS.buildNumber;
+                    path = string.Format(IOS_BUILD_MASK, path, UBHPrefs.GetString(GAME_TITLE_KEY), PlayerSettings.bundleVersion, PlayerSettings.iOS.buildNumber, "-dev");
+                    if (!Directory.Exists(path)) {
+                        Directory.CreateDirectory(path);
+                    }
+                    break;
+                case PlatformType.GOOGLE:
+                    group = BuildTargetGroup.Android;
+                    target = BuildTarget.Android;
+                    info["code"] = PlayerSettings.Android.bundleVersionCode;
+                    path = string.Format(ANDROID_BUILD_FILE_MASK, path, UBHPrefs.GetString(GAME_TITLE_KEY), PlayerSettings.bundleVersion, PlayerSettings.Android.bundleVersionCode, "", "-dev", "apk");
+                    break;
+                case PlatformType.HUAWEI:
+                    group = BuildTargetGroup.Android;
+                    target = BuildTarget.Android;
+                    postfix = "-huawei";
+                    info["code"] = PlayerSettings.Android.bundleVersionCode;
+                    path = string.Format(ANDROID_BUILD_FILE_MASK, path, UBHPrefs.GetString(GAME_TITLE_KEY), PlayerSettings.bundleVersion, PlayerSettings.Android.bundleVersionCode, "-huawei", "-dev", "apk");
+                    break;
+                default:
+                    break;
+            }
+            info["name"] = UBHPrefs.GetString(GAME_TITLE_KEY);
+            info["bundle"] = PlayerSettings.applicationIdentifier;
+            info["company"] = PlayerSettings.companyName;
+            info["version"] = PlayerSettings.bundleVersion;
+            info["source"] = string.Format("{0}.{1}.{2}{3}-dev", UBHPrefs.GetString(GAME_TITLE_KEY), info["version"], info["code"], postfix);
+            byte[] data = Encoding.UTF8.GetBytes(info.ToJsonString());
+            File.WriteAllText(Path.Combine(param["output"], string.Format("{0}.{1}.build.json", param["project"], param["platform"])), info.ToJsonString());
+            PlayerSettings.SetScriptingBackend(group, ScriptingImplementation.IL2CPP);
+            PlayerSettings.SetScriptingDefineSymbolsForGroup(group, defines);
+            EditorUserBuildSettings.SwitchActiveBuildTarget(group, target);
+            EditorUserBuildSettings.development = true;
+            if (platform == PlatformType.GOOGLE) {
+                PlayerSettings.Android.keystoreName = UBHPrefs.GetString(GOOGLE_PATH_KEY);
+                PlayerSettings.Android.keystorePass = UBHPrefs.GetString(GOOGLE_PASSWORD_KEY);
+                PlayerSettings.Android.keyaliasName = UBHPrefs.GetString(GOOGLE_ALIAS_KEY);
+                PlayerSettings.Android.keyaliasPass = UBHPrefs.GetString(GOOGLE_APASS_KEY);
+            } else if (platform == PlatformType.HUAWEI) {
+                PlayerSettings.Android.keystoreName = UBHPrefs.GetString(HUAWEI_PATH_KEY);
+                PlayerSettings.Android.keystorePass = UBHPrefs.GetString(HUAWEI_PASSWORD_KEY);
+                PlayerSettings.Android.keyaliasName = UBHPrefs.GetString(HUAWEI_ALIAS_KEY);
+                PlayerSettings.Android.keyaliasPass = UBHPrefs.GetString(HUAWEI_APASS_KEY);
+            }
+            BuildReport report = BuildPipeline.BuildPlayer(GetScenes(), path, target, BuildOptions.None);
+            int code = (report.summary.result == BuildResult.Succeeded) ? 0 : 1;
+            EditorApplication.Exit(code);
+        }
+
     }
 
 }
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diff --git a/README.md b/README.md
index dd86763..a2aea5d 100644
--- a/README.md
+++ b/README.md
@@ -118,6 +118,7 @@ Get it from [releases page](https://github.com/mopsicus/ubh/releases) or add the
 1. Open UBH in Unity Editor via hotkey `cmd+g` or menu `Tools -> Unity Builder Helper`
 2. Tap "Settings" button
 3. Fill settings and save
+4. UBH get some vars from git repo, so your project should be git inited
 
 <p align="right">(<a href="#top">back to top</a>)</p>
 
diff --git a/Samples~/Demo/Demo.cs b/Samples~/Demo/Demo.cs
new file mode 100644
index 0000000..63e8606
--- /dev/null
+++ b/Samples~/Demo/Demo.cs
@@ -0,0 +1 @@
+// full demo project https://github.com/mopsicus/ubh-demo
\ No newline at end of file