Knowledge Plaza - Knowledge Plaza is a SaaS Platform dedicated to Social Knowledge Management.
Xonotic - Xonotic is a free (GPL), fast-paced first-person shooter that works on Windows, OS X and Linux.
Tettra - Tettra is a company wiki that helps teams manage and share organizational knowledge.
Counter-Strike - Counter-Strike is a PC-exclusive FPS video game developed by Valve Corporation.
Obie.ai - Access knowledge quicker without leaving Slack
Quake - Quake is a series of first-person shooter video games released by id Software.