
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: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Tremulous is an open-source and cross-platform online first person shooter that features team-based gameplay with elements of real-time strategy. Players can choose to be agile but weaker humans or slower but stronger aliens in capture-the-flag style matches.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API