Free • No download
About GTA: Operation Sigma
«GTA: Operation Sigma» is an action-packed shooter with open-world mayhem. Accomplish missions, take out foes, level up your character, and become the city's champion!
How to play
The game has four levels of difficulty: * Easy: standard money reward and damage; * Medium: damage increases 5 times, money — 3 times; * Hard: damage up 10 times, money up 10; * Impossible: damage rises 30 times, and the money — 20. Controls: * Aim and move with your mouse; * Move your character using the arrow keys or WASD; * Jump using space or J; * Fire using the left mouse button or Z; * Throw a grenade with the right mouse button or X; * Use Hammer Time with Left Shift or C; * Switch weapons with Q or E, or use mouse wheel; * Enter a vehicle using E or Enter; * Pause the game with Esc or P; * Mute audio toggle with M. Eliminate the targets marked on your minimap, and remember to shoot crates to discover hidden treasures.
Screenshots
GTA: Operation Sigma FAQ
Is GTA: Operation Sigma free to play?
Yes. You can play GTA: Operation Sigma online for free without buying the game or creating an account.
Can I play on mobile or a Chromebook?
Yes. The game runs in a modern browser on phones, tablets, laptops, desktops, and Chromebooks.
Do I need to download anything?
No. Press Play and the browser game loads directly on this page.
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