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

Description: Urho3D is a free and open source cross-platform 2D and 3D game engine. It provides features such as scene management, rendering, audio, physics, and networking for building games and 3D applications across desktop, mobile, and web platforms.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API