Overview
Bethesda

Bethesda is a well-known, award-winning, video game company known for creating games like The Elder Scrolls and Fallout series.
Behaviour Interactive

Behaviour Interactive is a Canadian video game development company, most notably known for creating the Westworld mobile game. As well as working on the Fallout Shelter mobile game.
Warner Bros.

Warner Bros. is a global entertainment studio, involved in film, television, and video game production. Known for Harry Potter, DC Comics, Batman and more.
Games Involved in the Legal Battle
Fallout Shelter (Bethesda)

Fallout Shelter is a construction management simulation video game developed by Bethesda Game Studios, with assistance by Behaviour Interactive and published by Bethesda Softworks.
Westworld (Warner Bros. & Behaviour Interactive)

Westworld is the offical HBO mobile game that challenges you to create the best park that you can to satisfy visitors. Developed by Behaviour Interactive and published by Warner Bros.