
Description: IO games are multiplayer online games played in a browser. They feature simple graphics and gameplay accessible to all ages. Popular IO games include Agar.io, Slither.io, and Diep.io.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Armor Games is a popular gaming website that features over 1,000 free online games of different genres such as action, puzzles, RPG and more. Their games can be played in browsers directly without downloads.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API