System Shock 2 (1999) (1999): runs on Windows 11, Mac, Linux, Steam Deck?

Windows 11✓ with 2 fixes
Steam Deck✓ Playable
Mac✓ Mac version sold
Linux✓ Proton Platinum

Gamicality score 92 / 100

Playability today ★★★★★ 3.5

Runs today4.5 / 5
Design today2.5 / 5
See the checks

Steam user reviews Very Positive

7,611 reviews95% positive
Steam store page

Get it on GOGDRM-free

Released: 1999
Developer: Irrational Games, Nightdive Studios
Genre: Action, RPG
Best version today: The 1999 original was delisted on Steam in October 2025 and now comes bundled with Nightdive's 25th Anniversary Remaster, which is the more comfortable version to play today.
Time to beat: About 13.5 hours for the main story HowLongToBeat
Runs on: Windows, macOS, Linux, Steam Deck
Last checked: October 31, 2026

Does System Shock 2 (1999) run on Windows 11, Apple Silicon Macs, Linux and Steam Deck?

Windows 11	✓Runs with a fix. See the steps below. Source
Mac (Apple Silicon)	?A Mac version is sold. Not yet confirmed on Apple Silicon. Source
Linux	✓Through Proton. ProtonDB: Platinum, runs perfectly out of the box. Source
Steam Deck	✓Playable, as rated by Valve. May need some setup. Source

Played it lately? Press Works for me or Doesn’t work on your platform, so the next player knows. One click, no account. How we check where it runs

How to get System Shock 2 (1999) running today

What you need

Optional SS2ToolPatcher that sets up the latest NewDark engine, fixes various issues and prepares the game for mods.

Steps

Open a step for the full walkthrough.

Start the game as it is first: the Steam version already includes the NewDark patch with widescreen and modern-system fixes (PCGamingWiki).
1. Install System Shock 2 in Steam and click Play.
2. Set your monitor's resolution in the game's options.
3. If the game runs well, nothing else is needed.
If the game crashes at random, or before adding mods, install SS2Tool as recommended by PCGamingWiki.
1. Find the game folder: in Steam, right-click the game > Manage > Browse local files.
2. Open the SS2Tool page and download the newest version.
3. Save the downloaded file into the game folder.
4. Run SS2Tool from there and follow its prompts to patch the game.
5. Start the game from Steam. SS2Tool turns off the intro video by default; that shows the patch is active.
6. Settings now live in cam_ext.cfg in the game folder. Open it with Notepad to change options such as fov.
7. The systemshock.org guide warns that Steam updates can overwrite SS2Tool's changes. If the problems come back after an update, run SS2Tool again.

Synopsis

A first-person horror RPG in which a soldier wakes from cryosleep aboard the starship Von Braun to find the crew dead or twisted by a mysterious infection. Players explore the ship deck by deck, scavenge scarce ammunition, and build their character through combat, hacking and psychic skills while a voice on the radio guides them.

What people say

Critics in 1999 praised its atmosphere, sound design and blend of shooter and RPG, though it sold poorly at the time. It is now regarded as one of the most influential PC games, a direct ancestor of BioShock and the modern immersive sim. Player reviews still praise its tension and connected ship, but often criticize dated graphics, weak melee, respawning enemies, some needless backtracking and a weaker final stretch. Many players also find its mouse-driven inventory and interface awkward next to modern games.

Playability today

The average of two parts, each from 1 to 5. Tap a check to see why. How it works

Runs today

4.5 / 5

✓Sold or given away today by an official source
✗Needs fan patches to run well on Windows 11
✓Single-player works without an internet connection
GOG sells a DRM-free version that plays offline (GOG).
✓All of its content still works (servers, DLC, unlocks)
PCGamingWiki records no shut-down servers or lost content (PCGamingWiki).
✓Supports modern resolutions and widescreen
Native widescreen and modern resolutions (PCGamingWiki).
✓Full controller support or remappable controls
Remappable keys (PCGamingWiki).
✓Steam Deck Verified or Playable
✓No pay-to-win or pushy microtransactions
✓No known game-breaking bugs in the current version
PCGamingWiki lists no unresolved issues (PCGamingWiki).

1 check not confirmed yet

No intrusive DRM or required third-party launcher account

From the Steam store, Valve’s Steam Deck rating and the sources under each check. Checks not confirmed yet don’t count.

Design today

2.5 / 5

✗Controls feel awkward on a modern controller or mouse and keyboard
Movement and aiming work with a mouse, but the Steam version lists no controller support, and the dated key layout, weapon swapping and drag-and-drop item use feel clumsy next to modern shooters. Source: store.steampowered.com.
✗Menus, text or interface are hard to read on today's screens
The inventory is a drag-and-drop grid at the top of the screen with small text, and the status panels sit in the corners, which reads poorly on large modern displays. Source: en.wikipedia.org.
✓Saving is fair: free saves or frequent checkpoints, little lost progress
The player can save at any time and quick-save, with dying outside a Quantum Bio-Reconstruction Machine area sending the player back to the last save. Source: en.wikipedia.org.
✗Hard to make progress without a guide
Character creation locks in stats and skills before play starts, and the many systems (hacking, repair, research, ammo types) are explained thinly, so many players lean on a guide to avoid a weak build. Source: en.wikipedia.org.
✗Pacing drags: grind, filler or forced backtracking
Resources are scarce and the ship's decks require long trips between levels, with respawning enemies and backtracking for ammo and keys that slow the middle of the game. Source: en.wikipedia.org.
✓Camera and movement never fight the player
The first-person view is stable and supports leaning, and the NewDark engine patch in the Steam version gives smooth mouse look. Source: en.wikipedia.org.