
Description: Piskvork is a free, open-source online version of tic-tac-toe. It allows you to play tic-tac-toe games in your browser against another player or against an AI opponent. Games can be played in real-time or by taking turns.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: 4 in a Row is a classic connect four style game for two players. Players take turns dropping discs into a vertical grid, attempting to get four of their color discs in a row horizontally, vertically, or diagonally to win.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API