
Description: Chocolate Doom is an open-source interpreter for the classic first-person shooter video game Doom. It aims to reproduce the original DOS version of Doom as closely as possible while running on modern operating systems.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Freedoom is a free and open source first-person shooter video game. It resembles Id Software's Doom but uses free or open source assets, allowing it to be legally distributed without infringing copyrights.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API