
Description: Ltris is an open-source, customizable Tetris clone and engine for Linux and other Unix-like systems. It features colorful block graphics, smooth animations, multiplayer support, and customization options to tweak the look, feel, and behavior of the game.
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