diff --git a/presave.js b/presave.js
new file mode 100644
index 0000000..6727b1e
--- /dev/null
+++ b/presave.js
@@ -0,0 +1,44 @@
+var H5PPresave = H5PPresave || {};
+
+/**
+ * Resolve the presave logic for the content type Question Set
+ *
+ * @param {object} content
+ * @param finished
+ * @constructor
+ */
+H5PPresave['H5P.QuestionSet'] = function (content, finished) {
+  var presave = H5PEditor.Presave;
+
+  if (isContentInValid()) {
+    throw new presave.exceptions.InvalidContentSemanticsException('Invalid Question Set Error')
+  }
+
+  var score = content.questions
+    .filter(function (action) {
+      return action.hasOwnProperty('library') && action.hasOwnProperty('params');
+    })
+    .map(function (action) {
+      return (new presave).process(action.library, action.params).maxScore;
+    })
+    .reduce(function (currentScore, scoreToAdd) {
+      if (presave.isInt(scoreToAdd)) {
+        currentScore += scoreToAdd;
+      }
+      return currentScore;
+    }, 0);
+
+  presave.validateScore(score);
+
+  if (finished) {
+    finished({maxScore: score});
+  }
+
+  /**
+   * Check if required parameters is present
+   * @return {boolean}
+   */
+  function isContentInValid() {
+    return !presave.checkNestedRequirements(content, 'content.questions') || !Array.isArray(content.questions);
+  }
+};