This is awesome! I love this kind of games - they are very fun and educational at the same time.

If you're like me, you might enjoy these as well:

1. Microcorruption - https://microcorruption.com/ (a game that teaches about embedded systems and security basics)

2. Over the Wire - http://overthewire.org (several games based on Web security)

3. WeChall - http://www.wechall.net/ (a big list of games with progress tracking)