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Ren'Py is a free and cross platform engine for digital storytelling. It makes it easy to combine words, images, and sounds to create visual novels and life simulation games.

Visual novels are computer-based stories that are told through words, images, sounds, and music. Many visual novels also present the player with menu choices that allow the player to control how the story is told.

Ren'Py's script language makes it easy to write visual novels, and other writing-heavy games. It's easy to learn, and scales well to the largest projects. Even without customization, Ren'Py provides the features players have come to expect from their visual novels.

Life Simulation games, such as management and dating sims, are more interactive games that mix story with gameplay. Ren'Py's screen language allows one to create complex interfaces, while its support for the Python scripting language makes allows for complex game logic, if that's what your project requires.
Free and Open Source
Summer Session is one of many commercial games made with Ren'Py.

Ren'Py is free to use with commercial and non-commercial games. There is no need to pay a fee to us or anyone else1 to distribute your Ren'Py game. Ren'Py has already been used with a half-dozen commercial games, and more are on the way.

Ren'Py doesn't tie your work to a particular company, web service, or business model. Ren'Py games have been digitally downloaded millions of times, can be moved on USB drives, and have been burned to CD and sold at conventions from Texas to Tokyo. We think it's important the maker can choose how his or her work is distributed.

Ren'Py is open source, which means that everyone is allowed to change it, in order to fix bugs or add features. Of course, with a record of over six years of improvements, it likely won't be necessary --- but the option is there if your project needs it.

1 Unless you use mpeg or mp3 support, in which case you're responsible for paying for the patent license. We don't recommend using these formats in commercial games.
Cross Platform

One of Ren'Py's biggest advantages is that runs on almost every computer. There are three primary platforms we support:

    * Windows 2000+ (x86)
    * Mac OS X 10.4+ (x86 and ppc)
    * Linux (x86, glibc 2.3+)

The Ren'Py launcher makes it possible to build versions of Ren'Py games for all three from any of these three platforms, making it possible to develop (for example) Mac and Linux versions on Windows.

Ren'Py games are not dependent on any other software on these platforms. There's no need for your users to download runtimes, drivers, codecs, or anything like that. If a user has one of the supported platforms, Ren'Py will run. (Even if not, Ren'Py is written using portable technologies like pygame, and so can probably be made to run.)

Android (2.0+, with OpenGL ES 2.0 support) is supported as a secondary platform. While Ren'Py runs well on these devices, building for Android smartphones and tablets requires additional software, some features are unavailable, and developing on those devices is not supported.