Check this out: Introduction to AI for Video Games (Reinforcement Learning) by Siraj Raval
Also this lecture on Deep Reinforcement Learning from Stanford CS231n
And this playlist: Introduction to Reinforcement Learning by Deep Mind
If you are interested in creating Games in Unity, this is also something you shall check out https://github.com/Unity-Technologies/ml-agents
And this: Playlist (Unity Machine Learning)
This Lecture from MIT was also interesting (and the DeepTraffic assignment was fun)