From PCGamingWiki, the wiki about fixing PC games

This page is for the 2007 puzzle-platform game. For the unrelated 1986 game, see Portal (1986).

Portal cover
Valve Corporation
Release dates
Windows October 9, 2007
macOS (OS X) May 12, 2010
Linux May 2, 2013
Metacritic 90
Modes Singleplayer
Pacing Real-time
Perspectives First-person
Controls Direct control
Genres Platform, Puzzle, Shooter
Art styles Stylized
Themes Comedy, Sci-fi
Series Portal
Portal on HowLongToBeat
Portal on IGDB
Portal guide on StrategyWiki
Portal on MobyGames
Portal on Wikipedia
Subseries of Half-Life
Portal 2007
Portal 2 2011
Portal 2 Sixense Perceptual Pack 2013
Aperture Tag: The Paint Gun Testing Initiative (unofficial mod) 2014
Portal Stories (series)
The Lab 2016
Bridge Constructor Portal 2017
Moondust 2018
Aperture Hand Lab 2019
Aperture Desk Job 2022


The macOS (OS X) version of this game does not work on macOS Catalina (version 10.15) or later due to the removal of support for 32-bit-only apps.

General information

GitHub Issue Tracker for Portal and other Source-based games
Steam Community Discussions


Source DRM Notes Keys OS
Icon overlay.png
DRM-free after installation through Steam client (notes may include more details)
DRM-free when launched directly from the executable with -game portal command line argument.[citation needed]
Portal Bundle also available.
macOS (OS X)
A demo is available.
Soundtrack is available for free with purchase here.
Does not include the 14 bonus levels present in the Xbox 360 arcade version. However, modders ported over the levels, and have released them.[1]

DLC and expansion packs

Name Notes
Still Alive Xbox 360 exclusive containing 14 extra levels, modded into the PC version. Avaliable via Quality of Life Mod or Portal: Still Alive For PC
macOS (OS X)
Soundtrack Available for free.
macOS (OS X)

Essential improvements[edit]

Quality of Life Mod[edit]

Adds Xbox 360 exclusive Still Alive DLC into the main game, reimpliments missing voice lines, textures and normal maps.

Peixoto's patch[edit]

Forced resolution allows in high resolution without shrinking the HUD\menus. Supersampling anti-aliasing is also possible

Skip intro videos[edit]

Use -novid command line argument[citation needed]

Game data[edit]

In-game general settings.
In-game general settings.

Configuration file(s) location[edit]

System Location
Steam <path-to-game>/portal/cfg/
This game does not follow the XDG Base Directory Specification on Linux.

Save game data location[edit]

System Location
Steam <path-to-game>/portal/save/

Save game cloud syncing[edit]

System Native Notes
Steam Cloud
Approx. 1 GB available.
Settings will sync too, except graphics settings.


In-game general video settings.
In-game general video settings.
In-game advanced video settings.
In-game advanced video settings.

Graphics feature State WSGF Notes
Widescreen resolution
4K Ultra HD
Some text may be too small, see this thread.
Field of view (FOV)
Values between 75° and 110°[2] (up to 120° using fov_desired) horizontal can be set via ingame slider.[3] For higher values use this guide.
Borderless fullscreen windowed
For newer versions, update then set to "Run in a window (No Border), otherwise set launch options to -windowed -noborder
Anisotropic filtering (AF)
Up to 16 samples.
Anti-aliasing (AA)
Up to 8x MSAA and up to 16x QCSAA. SGSSAA available with flag 0x004010C1.
Vertical sync (Vsync)
Double and triple buffered.
60 FPS and 120+ FPS
Capped at 300 FPS. Frame rate cap can be changed by changing fps_max in the developer console.
High dynamic range display (HDR)
Rendered image uses SDR color space. In-game HDR option refers only to HDR Rendering.
HBAO also available with flags (increasing in strength from left to right) 0x00000014, 0x0000002C, 0x00000006 and 0x00000008.


In-game key map settings.
In-game key map settings.
In-game mouse/gamepad settings.
In-game mouse/gamepad settings.

Keyboard and mouse State Notes
Mouse acceleration
Mouse sensitivity
Mouse input in menus
Mouse Y-axis inversion
Controller support
Full controller support
Use Controller UI Mod, old versions only for a console style menu that can be navigated with a controller. Use the console command exec 360controller to automatically setup Xbox controller support (if not already configured at startup).

Later versions (including the "beta/deck_test" branch) added Steam Input API support and Controller-centric UI (Vulkan supported card required) designed for both Steam Deck and any Gamepads[Note 1]. Gamepad UI can be enabled with -gamepadui Command line argument.
Controller remapping
Controller sensitivity
Controller Y-axis inversion
Controller types
XInput-compatible controllers
Xbox button prompts
Supported via Steam Input API.
Impulse Trigger vibration
DualShock 4 controllers
DualShock button prompts
Supported via Steam Input API.
Light bar support
Connection modes Wired, Wireless, Bluetooth.[4]
Tracked motion controllers
Generic/other controllers
Both Nintendo Switch Pro Controller and Generic Gamepads are supported via Steam Input API
Button prompts
Nintendo Switch Pro Controller button prompts are supported via Steam Input API
Additional information
Button prompts
Use Controller UI Mod (for old version only) to get a choice of button prompts such as Xbox 360, Xbox One, PlayStation 3/4, Switch, and more. Otherwise use Controller-centric UI with Steam Input API.
Controller hotplugging
Haptic feedback
Supported via Steam Input API.

If using the old version: you can bring back Controller rumble by download an updated version of the SDL2 runtime binary (choose Runtime Binaries x86) and replace it with the one in <path-to-game>\bin.[5] This works for any Source engine based game.
Simultaneous controller+KB/M


In-game audio settings.
In-game audio settings.

Audio feature State Notes
Separate volume controls
Over-all game volume and separate music slider.
Surround sound
7.1, 5.1 surround sound, 4 speaker surround. 7.1 output may require DirectSound3D restoration software.
Closed captions
Mute on focus lost
"Silence the audio while the game window is in the background" check box
EAX support
Set snd_legacy_surround 1 in console, 4 speakers in options, and use DSOAL for binaural HRTF mixing.


Language UI Audio Sub Notes
Simplified Chinese
Traditional Chinese
Fan localization by YinSasin (incl. Dubbing, Subtitles, Graphics). Download here
Fan translation. Download here

VR support[edit]

3D modes Native GG3D Notes
G3D, DirectVR
Officially supported game, see official vorpx game list.
Headsets Native Notes
HTC Vive
This game might be playable with the Revive Compatibility Layer (compatibility list).
Oculus Rift
See Oculus Rift.
Windows Mixed Reality
This game might be playable with the Revive Compatibility Layer (compatibility list).
Devices Native Notes
Tracked motion controllers
Traditional controller
See Input for details.
Novint Falcon

Oculus Rift[edit]

Enable Oculus Rift support[6]
  1. Find Portal in your Steam Library
  2. Right-click and select Properties
  3. Choose Set Launch Options...
  4. Add -vr and press OK.
  5. Close the window and relaunch the game

Issues fixed[edit]

Black and purple textures and giant red models[edit]

See Missing models or textures.

Game crashes when going through a portal (Windows)[edit]

Run the game in DirectX 9 or higher[citation needed]
If the game is running on a version below DirectX 9 it may crash when entering a portal.

Missing crosshair[edit]

cl_drawcrosshair 1[citation needed]
  1. Open the console in game (Default key is ~)
  2. Input cl_drawcrosshair 1 to show your crosshair. Similarly, you can use cl_drawcrosshair 0 to hide it.
You may need to enable the console in the settings

Portals are rendered incorrectly or lack any effects[edit]

Run the game in DirectX 9 or higher[citation needed]

The game may have defaulted to DirectX 8, causing portals to be rendered without effects. Add -dxlevel 95 to the game's launch options to run the game in DirectX 9, then remove it after running the game once or your in-game video options will keep resetting back to the defaults.

"Node Graph Out of Date. Rebuilding..." error in Still Alive levels[edit]

Download pre-built graphs[citation needed]
  1. Download this file.
  2. Extract Portal-StillAlive folder from the archive into the <Steam-folder>\steamapps\sourcemods.
  3. Launch the game.

Screen Tearing[edit]

-refresh 60[citation needed]

You may experience Screen Tearing while you play, or your game may also look slow for your screen refresh rate (for 60Hz+ monitors), if it's the case for you, you can either turn on Vsync or add -refresh [your Screen refresh rate] as a launch argument, in order to solve this issue.

Vsync can cause input lag in some cases.

Other information[edit]


Technical specs Supported Notes
Direct3D 6, 7, 8, 8.1, 9
OpenGL 2.1 OS X and Linux only.
Undocumented officially. Enable Vulkan using -vulkan Command line argument. Works via DXVK translation layer.[7] Windows[8] and Linux only.[citation needed]
Shader Model support 2, 3
Executable 32-bit 64-bit Notes
macOS (OS X)
This 32-bit-only macOS game does not work on macOS Catalina (10.15) or later.


Middleware Notes
Physics Havok Heavily modified variant.
Audio Miles Sound System
Input SDL
Cutscenes Bink Video Used for startup videos and in-game movies.

Console commands[edit]

Games running on the Source engine can utilize Source Engine Console Commands for various tasks.
Enabling the console in Source games[citation needed]
  1. Launch the game
  2. From the main menu select Options
  3. Select the Keyboard tab
  4. Click the Advanced button
  5. Check the box next to Enable developer console (~).
  6. Click Apply


Some commands may first require you enabling sv_cheats. You can do so with sv_cheats 1.
Many servers will not allow you to play with cheats enabled, or will disable them upon entering the server.
Users without a US keyboard could experience some problems.

Launch options[edit]

View this Steam Support Article regarding launch options as well as the relevant Valve Developer wiki page for further information and a list of useful Source engine launch options.
Enabling a launch parameter[citation needed]
  1. Find the game in your Steam Library
  2. Right-click the game name
  3. Select Properties
  4. Select Set Launch Options...
  5. Input your selected launch options and separate each command with a space
  6. Press OK
  7. Launch the game

Mute the radios from the Portal 2 ARG (Transmission Received)[edit]

Before Portal 2 was announced, Valve ran an ARG that cryptically hinted at a sequel through an update in Portal. The update added a radio to find in every single level and carrying them all to the end to be vaporized caused them to emit shrieking noises. These noises could be decoded into pictures that seemed to hint at Portal 2, which was later confirmed. Since the ARG serves no purpose anymore, the audio that these radios play to alert you to their presence may be distracting. To mute these radios and achieve a near-vanilla Portal experience, follow these steps or download a file.

Mute the Radios[citation needed]
  1. Go to <path-to-game>\portal\
  2. Create a folder named custom and open it
  3. Create a folder named mute radios inside the custom folder and open it
  4. Create a folder named sound inside the mute radios folder and open it
  5. Create a folder named ambient inside the sound folder and open it
  6. Create a folder named music inside the ambient folder and open it
  7. Find a replacement .wav file such as this empty one from wc3c.net and copy it into the music folder
  8. Rename the .wav file to looping_radio_mix.wav
  9. Launch the game.
Mute the Radios but easier[citation needed]
  1. Download this file.
  2. Extract portal folder into <path-to-game>.
  3. Launch the game.

System requirements[edit]

Minimum Recommended
Operating system (OS) XP, Vista, 7
Processor (CPU) Intel Pentium 4 1.7 GHz
AMD Athlon XP 1700+
System memory (RAM) 512 MB
Hard disk drive (HDD) 4 GB
Video card (GPU) Nvidia GeForce 3
ATI Radeon 8500
128 MB of VRAM
DirectX 8.1 compatible
Must be run without Steam to play on XP and Vista.
macOS (OS X)
Operating system (OS) 10.5.8
Processor (CPU)
System memory (RAM) 1 GB
Hard disk drive (HDD) 4 GB
Video card (GPU) Nvidia GeForce 8 series
ATI Radeon X1600
Intel HD Graphics 3000


  1. While it partially works on XInput/Legacy Mode, it's best suited for Steam Input API mode.


  1. Portal: Still Alive for PC
  2. Originally 90° before 2022 patch
  3. Field of View - Valve Developer Community
  4. Verified by User:Al2009man on 2022-05-05
    Tested on DualShock 4 V2 and DualSense Controller while Steam Input is forcefully disabled.

    As of this writing: Left/Right Joystick does not work if Steam Input (under Legacy mode) is enabled.
  5. Verified by User:Al2009man on 2022-05-05
    Seems like this method no longer works on Steam Deck branch.
  6. "Portal 1 - steampipe beta Active for Rift now!" - Oculus Rift Developer Forums
  7. https://www.thegamer.com/portal-ui-steam-deck-half-life-2/
  8. Verified by User:kr0tchet on 2022-04-03
    dxvk_d3d9.dll exists in game directory (Windows only)
    dxvk_d3d9.dll exists in game directory (Windows only)