Your choice of Operating System (OS) is the single most important cyberware decision you'll make in Night City. It's not just another chrome upgrade; it's the core of your build, defining your entire approach to combat and problem-solving. This choice dictates whether you become a ghost in the machine, a time-bending warrior, or an unstoppable juggernaut. If you're not planning to pour attribute points into Intelligence, your decision is already narrowed down to two: the lightning-fast Sandevistan or the brutish Berserk. Picking your OS is the first real step to deciding who your V is going to be.

The Cyberdeck: Become a Ghost in the Machine

The Cyberdeck is the default OS and the quintessential tool for the netrunner. This is the path of strategy, stealth, and manipulation. Instead of kicking down the front door, you'll be disabling cameras, turning turrets against their owners, and frying enemy synapses from the safety of cover. A Cyberdeck allows you to scan enemies and the environment to upload powerful programs called quickhacks, turning every combat encounter into a deadly puzzle you solve remotely.

Your primary resource is RAM, and your entire build will revolve around maximizing it, speeding up its recovery, and using it efficiently. With the right perks, you can queue multiple quickhacks on a single target, creating devastating combos. For example, you can use the covert quickhack 'Sonic Shock' to make an enemy undetectable by their allies, then follow up with a lethal 'Short Circuit' or 'Overheat' for a silent, untraceable kill. It’s a playstyle that rewards patience and tactical thinking over twitch reflexes.

Who is the Cyberdeck for?

This OS is for the thinkers. If you enjoy controlling the battlefield from the shadows, exploiting enemy weaknesses, and feeling like the smartest person in the room, the Cyberdeck is for you. It requires a heavy investment in the Intelligence attribute, as nearly every perk and piece of cyberware that boosts your netrunning prowess is tied to it. You’ll also want to invest in the Technical Ability tree to unlock perks that improve your cyberware capacity, allowing you to install chrome that further enhances your RAM and hacking abilities. This is not a path for those who want to run-and-gun; it’s for those who want to win the fight before it even starts.

Cyberpunk 2077 in-game screenshot

Cyberpunk 2077 in-game screenshot

The Sandevistan: Bend Time to Your Will

Popularized by the Cyberpunk: Edgerunners anime, the Sandevistan is the ultimate OS for players who crave speed, style, and high-octane action. Activating it slows down time for everyone but you, turning a chaotic firefight into a ballet of bullets and blades where you are the conductor. In this dilated time, you can line up a dozen headshots with a pistol, close an impossible gap to slice an enemy with your katana, or simply sidestep a barrage of incoming fire with ease.

Unlike the Cyberdeck, the Sandevistan completely replaces your ability to perform quickhacks. Your power comes from pure, unadulterated speed. Builds centered around this OS typically focus on the Reflexes attribute to enhance blade and assault weapon damage, and the Cool attribute to boost critical hits and stealth abilities. Perks like 'Dash' and 'Air Dash' from the Reflexes tree become incredibly potent, allowing you to move like a blur across the battlefield while time is slowed. With the 'Road Warrior' perk from the Cool tree, you can even activate the Sandevistan while driving, allowing you to take corners with impossible precision or line up perfect shots in vehicle combat.

Cyberpunk 2077 in-game screenshot

Cyberpunk 2077 in-game screenshot

Who is the Sandevistan for?

Choose the Sandevistan if you want to be a hyper-lethal predator. It’s for the player who wants to be in the thick of the fight, dishing out immense damage with surgical precision. Whether you're a gunslinger fanning the hammer of a revolver or a modern-day samurai deflecting bullets with a sword, the Sandevistan gives you the temporal advantage to dominate any encounter. It’s a high-skill, high-reward playstyle that feels incredibly powerful and looks even cooler in action. If your V's philosophy is 'attack is the best defense', this is your OS.

The Berserk: Unleash Your Inner Beast

If the Cyberdeck is for strategists and the Sandevistan is for assassins, the Berserk OS is for one thing: pure, unadulterated rage. Activating Berserk turns you into a walking tank. You gain massive boosts to damage resistance, a significant health buff, and often enhanced melee damage and attack speed. While in this state of fury, you become an unstoppable force, capable of shrugging off damage that would flatten a lesser choom and pulverizing enemies with your bare (or Gorilla-Arm-equipped) fists.

Like the Sandevistan, equipping Berserk locks you out of quickhacking. Your focus shifts entirely to raw physical power, anchored by the Body attribute. Perks in this tree, such as 'Adrenaline Rush' and the earth-shattering 'Quake' ability, synergize perfectly with Berserk. This OS is the cornerstone of any brawler, shotgunner, or LMG-wielding solo. It encourages a head-on-assault playstyle where cover is an afterthought and the best solution to any problem is to charge straight through it. Certain Berserk modules even grant immunity to movement penalties and non-damaging status effects, ensuring nothing can stop your rampage.

Cyberpunk 2077 in-game screenshot

Cyberpunk 2077 in-game screenshot

Who is the Berserk for?

The Berserk OS is for the player who wants to feel invincible. If your ideal combat strategy involves sprinting into a room full of gangoons and turning them into red paste with a blunt weapon, this is your calling. It’s a straightforward and brutally effective playstyle that excels at absorbing and dealing massive amounts of damage up close. Forget stealth, forget tactics—Berserk is about overwhelming your foes with brute force and raw survivability. It's the perfect fit for a V who wants to be a cybernetically enhanced juggernaut.

How Do You Choose?

Your choice of OS is a fundamental decision that should be made early and built around. It’s not just a combat tool but the heart of your character's identity in battle. Here’s the breakdown:

  • Choose the Cyberdeck if: You want to be a hacker. You prefer strategy, stealth, and manipulating the environment. You are investing heavily in the Intelligence attribute.
  • Choose the Sandevistan if: You want to be a speed demon. You prefer fast-paced, stylish combat with blades or precise gunplay. You are investing heavily in the Reflexes and Cool attributes.
  • Choose the Berserk if: You want to be a tank. You prefer brute force, high survivability, and in-your-face brawling with blunt weapons or shotguns. You are investing heavily in the Body attribute.

While you can technically swap between them by visiting a Ripperdoc, the most effective builds commit to one path. The attribute points and perks that make a Cyberdeck powerful are useless for a Berserk user, and vice versa. Think about the power fantasy that appeals to you most, and build your V around that core.

A Final Take

Ultimately, there is no wrong answer. Since the 2.0 update, all three Operating Systems are incredibly viable and offer a unique and satisfying way to experience Night City. The Cyberdeck makes you a digital god, the Sandevistan turns you into a time-bending warrior, and Berserk lets you become an unstoppable force of nature. The most important factor is what you find fun. Pick the OS that resonates with your desired playstyle, chrome up, and show Night City what you're made of.