
Description: The Doomsday Engine is an open source game engine specialized for running classic first-person shooter games like Doom, Heretic, Hexen and Strife. It allows playing the games on modern systems with high resolution and graphical enhancements.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: GZDoom is an enhanced port of the Doom game engine, allowing modern graphics and gameplay enhancements on the original Doom games. It maintains compatibility while adding features like OpenGL rendering, uncapped frame rates, and advanced scripting.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API