
Description: World to Build is a free and open-source 3D world building and voxel art software. It allows users to create intricate voxel models and structures easily and provides tools to edit and manipulate them. The interface is intuitive and has a simple learning curve.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Polytoria is a free and open source collaborative world-building game inspired by games like Minecraft and Roblox. Players can join servers to collectively build structures and environments limited only by their creativity.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API