
Description: Teeworlds is a free and open source 2D retro multiplayer shooter game. It features simple and smooth gameplay with pixel art graphics, several game modes like deathmatch and capture the flag, and online multiplayer supporting up to 16 players.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: OpenLieroX is an open source clone of the classic 2D platforming action game Liero. It features 2D physics-based gameplay with pixel graphics, multiple game modes, multiplayer online and local play, a map editor, and customizable weapons and characters.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API