
Description: Block Tile Puzzle is a free and open source puzzle video game where players slide blocks around to complete puzzles. It features simple, minimal graphics and intuitive block-sliding mechanics. With hundreds of relaxing puzzles, it's great for passing time.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: Graviton Block is an open-source, decentralized blockchain platform that allows developers to build dApps and smart contracts. It focuses on speed, scalability, and security using a Delegated Proof of Stake consensus algorithm.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API