
Description: PlayingCards.io is a free online card game website that allows users to play a variety of classic card games like poker, blackjack, crazy eights, and more against other players or AI opponents. Users can create custom game rooms and invite friends to play.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Vassal is an open-source engine for building and playing online adaptations of board games and tabletop games. It provides tools to create virtual game pieces and boards, build rulesets, and connect players over the internet.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API