If you want to know more about the story behind this best-selling game, check out the New Yorker Article.

A Dark Room makes use of the ProMotion and BubbleWrap gems. During its development Amir used all the refactoring techniques of the Ruby language and also ran the built-in spec framework in the background

Not enjoying Xcode, Amir used RubyMotion instead. Amir had real-world experience with Xcode and Objective-C, but didn't like it at all. Amir also has a Ruby background and went with RubyMotion to build A Dark Room. The command-line interface, the testing framework, the gems libraries and the CocoaPods integration and the freedom to use any text editor contributed to his decision.