Via Steam-Gift. Have fun with this Game :)

Nuclear Dawn is a Source engine based Multiplayer game that combines the visceral action of a First Person Shooter with the deep branching gameplay of a Real Time Strategy title.Forge your own destiny on the field of battle with every tactical decision, and ensure your faction’s survival with each headshot, capture buildings and bring the fight to your enemies’ strongholds riding the future’s machines of destruction.Exploit the terrain and resource point locations to block your enemies’ tactical advance, and crush their plans in an iron fist. Research and implement new technology to give your soldiers the edge on the battlefield, and set up forward bases to lead the assault on your enemies, with full defensive and offensive structures to choose from and upgrade to build your perfect fortress.The world has changed, it has been swept clean by the winds of change. Do you think you can survive it?