Storm United ( Steam Key / Region Free ).

http://store.steampowered.com/app/332970/ Storm United is a class-based multiplayer First Person Shooter that aims to bring top tier fps fun and smooth sensations with the help of our unique procedural physically simulated weapon and camera movements tech. If you are a FPS fan, please try and feel it for yourself, we really worked a lot on the gameplay fluidity and hope you like it as much as we do!

Storm United comes with a built-in development tool called the "United Developer Hub" (UDH) allowing players to
1. submit ideas, recommendations and bug reports
2. Choose development priorities based on submissions
3. Participate to tweaks and fundamental decisions through a voting system.

UDH is easy to use and will tell us when and what our team should works on and how we implement features. More details about it can be found here: http://www.stormunited.com/
With an ex Counter-Strike pro-gamer at the head of the project, a talented indie team and UDH, we empower players to build a competitive game with innovative mechanics.
Join us in this endeavor, be part of our friendly community and help us build the FPS of your dreams.