Grey Hack review

Grey Hack is the pick for players who want hacking with real stakes against other people. Its Steam page describes a massively multiplayer simulator on a vast network of procedurally generated computers, with an online world that stays active 24/7, so changes you make to a machine are still there when other players connect to it. Each network has its own size, configuration and security, and you plan attacks by studying a target, using social engineering, scanning for oversights and trying exploits, then covering your tracks. The terminal is based on real UNIX commands. It costs $19.99, runs on Windows, macOS and Linux, and 90% of 1,820 Steam user reviews are positive. It ranks fourth because it is still in Early Access and has a steeper learning curve than story-driven picks, and because a persistent world means your mistakes stick.

Who it is for

Players who want an online sandbox where other hackers can be targets

Price

$19.99 one-time purchase on Steam (US store).

You're a hacker with full freedom to act as you wish on a vast network of procedurally generated computers. $19.99 Buy on Steam
Quoted from the vendor pricing page on November 11, 2026.

Key features

• Persistent online world that stays active 24/7
• Procedurally generated networks with different configurations and security
• Terminal based on real UNIX commands
• Social engineering, system scanning and exploits to open backdoors
• File Explorer, Terminal and Text Editor from the start, with more utilities to find

Strengths and weaknesses

• Strength: Online PvP, co-op and single-player modes
• Strength: 90% of 1,820 Steam user reviews are positive
• Strength: 512 MB RAM minimum
• Weakness: Still listed as Early Access on Steam
• Weakness: Changes you make persist, so mistakes and attacks have lasting consequences
• Weakness: Windows minimum spec lists Windows 10 or 11

Key facts

• Developer: Loading Home
• Publisher: Loading Home
• Released on Steam: December 14, 2017
• Minimum RAM: 512 MB
• Steam user reviews: 90% positive of 1,820

Where it ranks

Grey Hack is No. 4 in our Best Hacker Games verdict.