Q: What is actually projectUnknown?
A: A very basic Multiplayer Arena-style FPS, including 4 deadly weapons, 3 characters types and skills, bots, nuts and bolts! On the technical aspect, it shows deep use of CSQC (client side QuakeC), which permits fancy stuff like client-side skeletal animation, advanced physics(ropes, ragdolls), animated HUD, client-only particle effects (bandwith saver), etc.
Q: When will the game be released?
A: Dunno, really. Maybe tomorrow, maybe in 2 years, maybe never.
Q: Is it free?
A: If it should be released someday, of course! Every single line of code is created by me (Antonio Latronico) and will be released under CC0 License. Same license will have every artistic element created by me (models, textures, maps, sounds, etc.) with the sole exception of GLSL shader files, which belong to respective authors (written in every glsl file)