Impact.js vs Ren'Py
Impact.js
impactjs.com
Ren'Py
renpy.orgSide by side
| Figure | Impact.js | Ren'Py |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | Yes |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| API | — | Yes |
| Plans published | 1 | 1 |
| Spec score · Game Engine Software | 7.9 (#63) | 9.0 (#6) |
| Browser support | The site says Impact runs in HTML5 capable browsers, including Firefox, Chrome, Safari, Opera and Internet Explorer 9. | Ren'Py can package games for WebAssembly browsers, but web support is marked beta and the web port does not support networking or multithreading. |
| Free plan | Yes | Yes |
| Mobile export | Yes | Yes |
| Scripting languages | JavaScript | Ren'Py script language; Python |
| Source code model | open_source | open_source |
| Support | The maker directs programming questions to the forums and IRC channel, and says forum questions are often answered faster than email. | Ren'Py directs users to its Discord and Lemma Soft Forums for questions, and to GitHub for bug reports. |
| Target platforms | web,iOS,Android,tvOS | Windows 10+,macOS 10.10+,Linux x86_64/Arm,Android 5.0+,iOS 11+,HTML5/WebAssembly (beta) |
| What it does | Impact is a JavaScript game engine for developing HTML5 games for desktop and mobile browsers. | Ren'Py is a visual-novel engine for combining words, images, sounds and Python to make interactive stories and life-simulation games. |
Plans
In their own words
Ren'Py
Ren'Py is a free visual novel engine for making interactive stories and life simulation games with words, images, and sounds. Its script language handles visual-novel writing, while Python can be used for more complex game logic. Default games include menus, automatic saves, rollback, predictive image loading, and mouse, keyboard, or gamepad controls. Creators can customize screens and styles using the screen language and Python. The launcher builds Windows, Mac, and Linux games from any of those desktop systems. Ren'Py also supports Android export and can package games for WebAssembly browsers, though web support is beta and lacks networking and multithreading. It targets Windows 10 or later, macOS 10.10 or later, Linux x86_64 or Arm, Android 5.0 or later, and iOS 11 or later. Building for iOS requires a Mac and Xcode, and that support remains a work in progress. The engine is free for commercial and non-commercial use; most is MIT-licensed, with some LGPL components whose terms distributors must meet.