
Description: The Castle Game Engine is a cross-platform, open source game engine for 2D and 3D games. It supports multiple programming languages and can export games to many platforms including Windows, macOS, Linux, Android, iOS, and web browsers.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Limon Engine is an open-source game engine focused on 2D games. It is lightweight, easy to use, and has a visual editor for building levels and gameplay without coding.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API