diff --git a/seed/challenges/intermediate-ziplines.json b/seed/challenges/intermediate-ziplines.json
index bba888f2cf..0e6246077b 100644
--- a/seed/challenges/intermediate-ziplines.json
+++ b/seed/challenges/intermediate-ziplines.json
@@ -133,6 +133,45 @@
       "descriptionEs": [],
       "namePt": "",
       "descriptionPt": []
+    },
+    {
+      "id": "bd7158d8c442eddfaeb5bd1c",
+      "name": "Zipline: Build a Simon Game",
+      "dashedName": "zipline-build-a-simon-game",
+      "difficulty": 1.07,
+      "challengeSeed": ["126415123"],
+      "description": [
+        "<span class='text-info'>Objective:</span> Build a <a href='http://codepen.io' target='_blank'>CodePen.io</a> app that successfully reverse-engineers this: <a href='' target='_blank'>http://codepen.io/dting/full/KpJXZV/</a>.",
+        "<span class='text-info'>Rule #1:</span> Don't look at the example project's code on CodePen. Figure it out for yourself.",
+        "<span class='text-info'>Rule #2:</span> You may use whichever libraries or APIs you need.",
+        "<span class='text-info'>Rule #3:</span> Reverse engineer the example project's functionality, and also feel free to personalize it.",
+        "Here are the <a href='http://en.wikipedia.org/wiki/User_story' target='_blank'>user stories</a> you must enable, and optional bonus user stories:",
+        "<span class='text-info'>User Story:</span> As a user, I am presented with a random series of button presses.",
+        "<span class='text-info'>User Story:</span> As a user, each time I input a series of button presses correctly, I see the same series of button presses but with an additional step.",
+        "<span class='text-info'>User Story:</span> As a user, I hear a sound that corresponds to each button both when the series of button presses plays, and when I personally press a button.",
+        "<span class='text-info'>User Story:</span> As a user, if I press the wrong button, I am notified that I have done so, and that series of button presses starts again to remind me of the pattern so I can try again.",
+        "<span class='text-info'>User Story:</span> As a user, I can see how many steps are in the current series of button presses.",
+        "<span class='text-info'>Bonus User Story:</span> As a user, if I want to restart, I can hit a button to do so, and the game will return to a single step.",
+        "<span class='text-info'>Bonus User Story:</span> As a user, I can play in strict mode where if I get a button press wrong, it notifies me that I have done so, and the game restarts at a new random series of button presses.",
+        "<span class='text-info'>Bonus User Story:</span> As a user, the tempo of the game speeds up incrementally on the 5th, 9th and 13th step.",
+        "<span class='text-info'>Bonus User Story:</span> As a user, I can win the game by getting a series of 20 steps correct. I am notified of my victory, then the game starts over.",
+        "<span class='text-info'>Hint:</span> Here are mp3s you can use for each button: <code>https://s3.amazonaws.com/freecodecamp/simonSound1.mp3</code>, <code>https://s3.amazonaws.com/freecodecamp/simonSound2.mp3</code>, <code>https://s3.amazonaws.com/freecodecamp/simonSound3.mp3</code>, <code>https://s3.amazonaws.com/freecodecamp/simonSound4.mp3</code>.",
+        "Remember to use <a href='//github.com/FreeCodeCamp/freecodecamp/wiki/How-to-get-help-when-you-get-stuck' target='_blank'>RSAP</a> if you get stuck.",
+        "When you are finished, click the \"I've completed this challenge\" button and include a link to your CodePen. If you pair programmed, you should also include the Free Code Camp username of your pair.",
+        "If you'd like immediate feedback on your project, click this button and paste in a link to your CodePen project. Otherwise, we'll review it before you start your nonprofit projects.<br><br><a class='btn btn-primary btn-block' href='https://twitter.com/intent/tweet?text=Check%20out%20the%20project%20I%20just%20built%20with%20%40FreeCodeCamp:%20%0A%20%23LearnToCode%20%23JavaScript' target='_blank'>Click here then add your link to your tweet's text</a>"
+      ],
+      "challengeType": 3,
+      "tests": [],
+      "nameCn": "",
+      "descriptionCn": [],
+      "nameFr": "",
+      "descriptionFr": [],
+      "nameRu": "",
+      "descriptionRu": [],
+      "nameEs": "",
+      "descriptionEs": [],
+      "namePt": "",
+      "descriptionPt": []
     }
   ]
 }