Q. How do I cite a video game in APA format?

Video games are software, so you can use that format (section 10.10 pages 338-340 of the APA Manual). More details are available at the APA Style Blog. 

Basic Format:

Title of Software [Computer software]. (Year). Location: Publisher.

Example with no author:
Candy Crush Saga [Computer software]. (2014). London: King.

Example with an author:
von Funck, W. & von Funck, S. (2014). Cube World [Computer software]. Saarlouis: Picroma.