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I tried with the good "old" Crosswalk but sadly Android cmd tools were changed so I now cannot build apps with Crosswalk. Now there is Android 4.4, KitKat, WebView. I managed to make a hybrid app up and running, however I see the grey background or blank/black canvas instead of my game. I found some links, and people say that I should disable hardware acceleration for WebView which i did, and then the black canvas appeared. What do you recommend, switch to newer WebView version or I am missing something? Android manifest xml: <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="sandhiflowers.game.com" > <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:roundIcon="@mipmap/ic_launcher_round" android:supportsRtl="true" android:theme="@style/AppTheme" android:hardwareAccelerated="true" > <activity android:name=".MainActivity" android:hardwareAccelerated="false"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> <uses-permission android:name="android.permission.INTERNET" /> </manifest> As you can seen, hardware acceleration was enabled application wide, but disabled only for the MainActivity. Before doing this, no canvas was visible, only the gray page background. When I disabled hardware acceleration then this black rectangle appeared. My MainActivity.java file: package sandhiflowers.game.com; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.webkit.WebSettings; import android.webkit.WebView; public class MainActivity extends AppCompatActivity { private WebView mWebView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mWebView = (WebView) findViewById(R.id.activity_main_webview); WebSettings webSettings = mWebView.getSettings(); webSettings.setJavaScriptEnabled(true); mWebView.setWebViewClient(new MyAppWebViewClient()); } @Override public void onResume(){ mWebView.loadUrl("file:///android_asset/www/index.html"); super.onResume(); } @Override public void onBackPressed() { if(mWebView.canGoBack()) { mWebView.goBack(); } else { super.onBackPressed(); } } } Any ideas?