Top similar games like Nullsec: Unauthorized Access:

A real-time hacking sandbox simulator with procedurally generated content. Multiple tools and techniques to use, multiple computers to hack, multiple missions to solve, and multiple vulnerabilities to exploit!

Step into a living virtual OS and learn cybersecurity by doing. Breach targets with chain-exploit puzzles, defend your own machine with firewalls and honeypots, script your tools in CyberCode, and rise from script kiddie to elite across 25+ hands-on modules.

CTRL+ESC is a hacker-themed idle clicker where you exploit systems, crack encryptions, and build an unstoppable network of automated exploits. Click to hack, solve captchas and minigames to boost production, and unlock powerful upgrades as you progress through increasingly complex systems.

Grey Hack is a massively multiplayer hacking simulator game. You're a hacker with full freedom to act as you wish on a vast network of procedurally generated computers.

The world runs on systems you're not supposed to touch. SIGKILL hands you the keys. A realistic hacking simulator where every hack ripples through a living geopolitical simulation. What you do with that power is up to you.

RootKit is a tactical hacking game set inside a corporate honeypot network. Track hostile hackers, infiltrate their systems, steal crypto and data, and eliminate them before they trace your connection.

Are you ready to build your own torrent empire? Crack software, manage servers, dive into shady deals, and outsmart the authorities—all in the shadow of the 2000s. Balance risk and reward in this terminal-based strategy sim. Become a digital legend or lose it all!

Bitburner is a programming-based incremental game. Write scripts in JavaScript to automate gameplay, learn skills, play minigames, solve puzzles, and more in this cyberpunk text-based incremental RPG.

In Void Future: Hacking Protocol, you play as a hacker in a cyberpunk world ruled by corporations. Hack, solve puzzles, and uncover a global conspiracy. Hunted by a system that never sleeps, you’ll need to stay hidden, outsmart surveillance, and fight to survive.

HELLO HACKER features a realistic terminal. Use real Linux commands, network scanning, password cracking, and cryptography to infiltrate 10 interconnected servers and expose a deadly government surveillance program. Your colleague is missing. You're next. Are you ready to be a hacker?

YOU ARE NOT ALICE is a social engineering sandbox game where you play the role of a hacker who has taken over Alice's work computer.  Your goal is to spread through her company by talking to her coworkers and convincing them to run a virus file you can send them.

ZIRQUITZ is a chill yet deep graph-building game. Build and optimize an evolving graph of nodes to produce “Work,” your resource for upgrades and expansion. Discover synergy, power up your network, and unlock endless potential!

Incremental hacker about faking productivity while stealing from your employer. Sell intel for credits or keep it and raise suspicion. One bad audit and you’re back to Intern.

Enter the terminal and jack into a retro-cyberpunk world. Hardwired is a hacker simulation where you explore networks, uncover secrets, and manipulate systems through command-line interfaces. Discover hidden logs, tap into surveillance feeds, and unravel story a set in a fractured dystopia.

An action hacking simulator set in a fully simulated world. Choose your path, craft your own tools, exploit vulnerabilities, and build your reputation. Every company, hacker, and law enforcement agency operates independently — nothing happens by chance. Every playthrough is unique.

Master the machine. In RE_ALLOC, you are the architect of execution. Design intricate hardware circuits, write custom assembly code, and optimize data flow across memory nodes. Efficiency is your only metric. Can you reach the kernel, or will your logic fail?

Reveal company secrets while hacking and exploring their quantum simulation networks. Fights for control with other players, coop with your faction, gather best tools, build most secure servers, write scripts and webs, or choose to be solo hacker who makes the right choices to change the world.

Welcome to CYBERLIFE! A multiplayer hacking RPG played through a terminal interface. Infiltrate corporations, manipulate real-time stock markets, craft your own tools, and join one of four factions competing for control of the darknet. Every player action impacts the game’s economy.

‘Ruin Adventurer’ is an automation game with survival and programming elements. Use your robots to ensure your survival, automate resource gathering, and ultimately escape the ruins.

You're a hacker with a terminal and four terrible scripts. Rewrite them. Hack servers by writing actual code in a custom scripting language - probe ports, crack passwords, steal data, and get out before the trace completes. Better code = better hacker.

Void Future: Prologue is a standalone free experience set in the universe of Void Future. Play as a hacker in a cyberpunk world ruled by corporations and complete a single, fully designed mission. Hack systems, solve puzzles,and uncover secrets — while staying hidden from a system that never sleeps.

Tracked is a strategic hacker-heist game played through a fictional operating system. Analyze contracts, route through digital relays, and run tools on your own rig. Manage resources and an active Trace—and disappear before the trail leads back to you.

Write real code in a Python-like language to control one machine that copies itself. Then watch a thousand copies of your program eat a world. A single-player programming incremental game about self-replicating machines.

A terminal-style hacking puzzle game where every command matters. Investigate logs, decode secrets, avoid traps, and uncover the rogue system watching from behind the screen.

Sort, analyze and sell dangerous data in a cyberpunk city. Every file you trade affects factions, the economy — and your fate.

Become a young programmer diving into the dangerous world of cybercrime. When the elite hacking collective Dark Shadows challenges you with a series of ruthless trials, you must push your genius to the limit. Will you prove your worth or become another digital casualty?

A sci-fi management game where you build and optimize your computer's system from the ground up. Connect and configure interconnected nodes to efficiently download, process, and upload files. Manage your setup, solve system challenges, and become the ultimate system architect

Reverse-engineer a private 1990s BBS. Read disassembly, patch broken checks, optimize a nine-core rack, and write assembly firmware that locks onto live scope traces. With 200+ puzzles, full controller support and offline play, you can refine your assembly skills on all your devices!

Build your own AI company from scratch. Train models, deploy datacenters across the globe, acquire your rivals, and go public. A grand-strategy tycoon about racing to the top in the post-ChatGPT era.

ROOTLINE is a multiplayer hacking and systems simulation where every machine, network, program, file and exploit exists inside a massively multiplayer persistent shared world.

Operate a remote armoured vehicle for the glory and whims of a dying empire. Undertake tactical missions, configure your command desk with an array of devices, and remain in favour to survive.

Hacker's Life is a game where you take the seat of a hacker, infect devices all over the world with malware, and join a hacker group to pull off bigger attacks. See your malware take control of the world and become famous for your hacking skills, but be careful not to get busted.

Alternate between infiltration and hacking of cameras and servers, using real tools. Sharpen your OSInt skills, prepare a trojan, and launch a targeted phishing attack to hack in total discretion...

Trade Bots is an educational simulation game featuring technical analysis and algorithmic trading. Buy or sell an unknown stock using its real, historic data based solely on patterns and technical indicators. As your profit increases, unlock upgrades that help expedite + automate gameplay with bots.

Build the most advanced operating system ever created! Can you master the fictional simulation language of this mind-bending machine? Design circuits, automate UBITS (coloured mobile data blocks), and optimize your system. The Admin is always watching, and he’s not what he seems.