Insurgency: Sandstorm has just received even more free content in update 1.3, and new players are welcome to try the game during its Steam Free Weekend, 10am PST Thursday June 20th to 10am PST Monday June 24th. Today’s monster update includes a remake of the indoor-focused classic Insurgency map ‘Ministry’, new weapons, new weapon upgrades, a zombie-inspired game mode called Frenzy

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