diff --git a/index.html b/index.html
index 9b89a96..21d9ba4 100644
--- a/index.html
+++ b/index.html
@@ -13,6 +13,15 @@
     <link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">
     <link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/font-awesome/4.1.0/css/font-awesome.min.css">
     <link rel="stylesheet" href="css/style.css">
+
+    <!-- Google Analytics -->
+    <script>
+    (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+    (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+    m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+    })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+    </script>
+    <!-- End Google Analytics -->
   </head>
   <body>
     <nav class="navbar navbar-default navbar-fixed-top" role="navigation">
@@ -206,6 +215,7 @@
 
     <script src="js/storage.js"></script>
     <script src="js/helpers.js"></script>
+    <script src="js/analytics.js"></script>
     <script src="js/gameobjects.js"></script>
     <script src="js/event.js"></script>
     <script src="js/detector.js"></script>
diff --git a/js/analytics.js b/js/analytics.js
new file mode 100644
index 0000000..c8cf2fc
--- /dev/null
+++ b/js/analytics.js
@@ -0,0 +1,75 @@
+var analytics =
+{
+    enabled: true,
+
+    screens:
+    {
+        main: 'Main screen',
+        about: 'About',
+        achievements: 'Achievements',
+        info: 'Physics information'
+    },
+
+    events:
+    {
+        categoryResearch: 'Research',
+        categoryHR: 'HR',
+        categoryUpgrades: 'Upgrades',
+        
+        actionResearch: 'Research',
+        actionHire: 'Hire',
+        actionBuy: 'Buy'
+    },
+    
+    init: function()
+    {
+        if (typeof Helpers.analytics === 'undefined' || Helpers.analytics == '') {
+            analytics.enabled = false;
+            return;
+        }
+        
+        ga('create', Helpers.analytics);
+        ga('set', { 'appName': 'Particle Clicker', 'appId': 'ch.cern.particle-clicker', 'appVersion': Helpers.version });
+        ga('set', 'anonymizeIp', true);
+
+
+        $('#myModal').on('show.bs.modal', function (e) {
+            analytics.sendScreen(analytics.screens.about);
+        });
+        $('#myModal').on('hide.bs.modal', function (e) {
+            analytics.sendScreen(analytics.screens.main);
+        });
+
+        $('#achievements-modal').on('show.bs.modal', function (e) {
+            analytics.sendScreen(analytics.screens.achievements);
+        });
+        $('#achievements-modal').on('hide.bs.modal', function (e) {
+            analytics.sendScreen(analytics.screens.main);
+        });
+
+        $('#infoBox').on('show.bs.modal', function (e) {
+            analytics.sendScreen(analytics.screens.info);
+        });
+        $('#infoBox').on('hide.bs.modal', function (e) {
+            analytics.sendScreen(analytics.screens.main);
+        });
+    },
+    
+    sendScreen: function(type)
+    {
+        if (!analytics.enabled || typeof type === 'undefined') {
+            return;
+        }
+        
+        ga('send', 'screenview', { 'screenName': type });
+    },
+    
+    sendEvent: function(category, action, label, value)
+    {
+        if (!analytics.enabled || typeof category === 'undefined' || typeof action === 'undefined' || typeof label === 'undefined' || typeof value === 'undefined') {
+            return;
+        }
+        
+        ga('send', 'event', category, action, label, value);
+    }
+};
diff --git a/js/game.js b/js/game.js
index 525ff13..8b6d1b3 100644
--- a/js/game.js
+++ b/js/game.js
@@ -119,4 +119,7 @@
     };
     $interval($scope.saveNow, 10000);
   }]);
+
+  analytics.init();
+  analytics.sendScreen(analytics.screens.main);
 })();
diff --git a/js/gameobjects.js b/js/gameobjects.js
index c037796..850f6f9 100644
--- a/js/gameobjects.js
+++ b/js/gameobjects.js
@@ -61,6 +61,7 @@ var GameObjects = (function() {
     research: function() {
       if (lab.research(this.cost, this.reputation)) {
         this.level++;
+        analytics.sendEvent(analytics.events.categoryResearch, analytics.events.actionResearch, this.name, this.level);
         var oldCost = this.cost;
         this.cost = Math.round(this.cost * this.cost_increase);
         return oldCost;
@@ -74,7 +75,7 @@ var GameObjects = (function() {
       return this._info;
     },
     showInfo: function() {
-      Helpers.showModal(this.name, this.getInfo());
+      UI.showModal(this.name, this.getInfo());
     }
   };
   var research = $.extend([], Helpers.loadFile('json/research.json'),
@@ -97,6 +98,7 @@ var GameObjects = (function() {
     hire: function() {
       if (lab.buy(this.cost)) {
         this.hired++;
+        analytics.sendEvent(analytics.events.categoryHR, analytics.events.actionHire, this.name, this.hired);
         var cost = this.cost;
         this.cost = Math.round(this.cost * this.cost_increase);
         return cost;
@@ -153,6 +155,7 @@ var GameObjects = (function() {
     buy: function() {
       if (!this.used && lab.buy(this.cost)) {
         this.used = true;
+        analytics.sendEvent(analytics.events.categoryUpgrades, analytics.events.actionBuy, this.name, 1);
         var rec = this.getReceiver();
         if (rec) {
           rec[this.property] = rec[this.property] * this.factor + this.constant;
diff --git a/js/helpers.js b/js/helpers.js
index f569d59..e7f4f6d 100644
--- a/js/helpers.js
+++ b/js/helpers.js
@@ -38,6 +38,7 @@ var Helpers = (function() {
   return {
     loadFile: loadFile,
     formatNumberPostfix: formatNumberPostfix,
-    version: '0.2'
+    version: '0.2',
+    analytics: ''
   };
 })();
