Open now · By request
ROOTLINE playtest
by SamV522
ROOTLINE is a multiplayer hacking and systems simulation where every machine, network, program, file and exploit exists inside a massively multiplayer persistent shared world.
It's free to ask. The developer chooses who gets in.
- Access
- By request
- On playtest since
- Sep 2, 2026
- Planned release
- To be announced
- Developer
- SamV522
- Platforms
- Windows
- Players
- Co-op, MMO, Multiplayer, Online co-op, Online PvP, PvP
- Languages
- English
How to join the ROOTLINE playtest
- Open the game's Steam page with the Request access button. Sign in to Steam if it asks.
- Request access to the ROOTLINE playtest there. It's free and doesn't commit you to anything.
- The developer lets players in, often in batches, so it can take a while. Steam emails you when you're in, and the playtest appears in your library.
New to playtests? How Steam playtests work
How AI is used
Generative AI tools were used during development to assist with some pre-generated in-game website and mission content. Generative AI is not used during gameplay.
The developer's own words, from Steam.
About ROOTLINE
WELCOME TO ROOTLINE
ROOTLINE is a multiplayer hacking and systems simulator set inside a collection of persistent, connected networks for you to explore, exploit and control.
The machines inside those networks have users, files and software running on them. Find a target, work out how it is configured, discover a way in and decide what to do once you have access.
START WITH THE TERMINAL
Learn your way around a Linux-inspired environment and use the same tools for everything from basic navigation to full network attacks.
ROOTLINE gives you tools and systems and lets you come up with the solutions.
TAKE THE JOB
Contracts give you a target and an objective. How you reach it is up to you.
Deface a website. Recover a file. Steal credentials. Compromise a machine. Investigate a network.
Jobs arrive through the same in-game systems you use everywhere else. Read the brief, investigate the target, complete the objective and submit the result to get paid.
Use your earnings to expand what you're capable of and take on increasingly difficult targets.
A PERSISTENT SHARED WORLD
ROOTLINE takes place in an online world shared with other players.
Machines, networks and services form part of a larger simulated internet and the world continues running when you disconnect.
The machine you find today may become infrastructure, a target or an opportunity tomorrow.
LEARN THE SYSTEM. THEN ABUSE IT.
Software in ROOTLINE is built from libraries that can contain vulnerabilities. Different versions expose different weaknesses and discovering one is only the beginning.
Resolve domains, scan ports, investigate running services and inspect process memory to identify vulnerable software, then piece together what you discover until you find a way inside.
As the world evolves, so does the attack surface.
MAKE YOUR OWN TOOLS
All of the software you will come across or use in ROOTLINE is built within ROOTLINE.
Find the source and modify it, or write your own software, automate repetitive work and build tools around the systems available to you.
What begins as a command you type manually can become part of your own toolkit.
The more you understand ROOTLINE's systems, the more you can make them work for you.
THERE IS ALWAYS ANOTHER MACHINE
Take contracts, explore the network, follow strange domains and investigate unfamiliar services. Sometimes the most interesting targets are the ones nobody sent you looking for.
ROOTLINE gives you a simulated internet and the tools to pull it apart.
From the game's Steam page.
