Insurgency is delivered as Steam cd key after your purchase. Insurgency installation is done entirely on Steam. Internet connection is required. Take to the streets for intense close quarters combat, where a team's survival depends upon securing crucial strongholds and destroying enemy supply in this multiplayer and cooperative Source Engine based experience. The follow-up game to the award-winning Source mod, Insurgency is highly competitive and unforgivingly lethal, striking a balance between one-life gameplay and prolonged action. Buy Insurgency, be ready for fear.