
Description: Retrospring is a browser-based retro game engine for creating and playing classic 2D video games. It allows users to build and share retro-style games without coding through its intuitive drag and drop interface.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Zabuu is a free and open source alternative to Microsoft Project for project management. It provides features like Gantt charts, resource management, collaboration tools, time tracking, and reporting to help plan and manage projects.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API