
Description: Unreal Engine is a complete suite of creation tools for game developers to design and build games, simulations, and visualizations. It provides a real-time 3D engine along with visual scripting tools to accelerate development for 2D and 3D projects across multiple platforms.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Atavism Online Engine is a software engine designed specifically for developing and operating massively multiplayer online games (MMOs). It handles features like network messaging, player logins, 3D rendering, and more so developers can focus on creating game content.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API