
Description: Micropolis is an open source city-building game inspired by the classic game SimCity. It allows players to design, build, and manage a simulated city by placing roads, zoning land, adjusting taxes, and building infrastructure like power plants, schools, and parks.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: OpenTTD is an open source simulation and tycoon game where players transport goods and passengers by rail, road, air, and water. The goal is to grow your transport company by building transport routes and infrastructure.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API