
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: Zandronum is a multiplayer-focused engine port that allows you to play classic Doom games online with others. It builds on the Doom source code to provide features like character classes, player levels, and more.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API