Ren'Py is a game engine that can be used to create visual novels and simulation games. Ren'Py uses its own "screen language" that is similar in format to how screenplays are written. Using only this language, authors can create interactive visual novels that incorporate images, videos, and sounds. It even supports branching, non-linear plot lines. Blocks of Python code may also be included to extend Ren'Py with additional features and facilitate the creation of full-fledged simulation games. The Ren'Py front page mentions that more than 1500 such projects have been created to date. Ren'Py has been recommended as a platform for game creation by outlets such as MakeUseOf and The Guardian. It has also been used in University-level art classes. The Quickstart section in the Ren'Py documentation outlines the creation of a simple visual novel and provides links to detailed reference material. In the Download section of the site, users can locate versions of the Ren'Py Software Development Kit for Windows, macOS, and Linux systems. This SDK can be used to create games that run on computers running Windows, macOS, or Linux/BSD, devices running iOS or Android, or as HTML5 websites running in a modern browser.