Anonymous edits have been disabled on the wiki. If you want to contribute please login or create an account.

Aliens versus Predator

From PCGamingWiki, the wiki about fixing PC games

For 2010 remake, see Aliens vs. Predator (2010).

Aliens versus Predator
Aliens versus Predator cover
Rebellion Developments
Mac OS (Classic) Logicware
macOS (OS X) Logicware
Fox Interactive
Japan Electronic Arts
Europe Sierra Studios
Classic 2000 edition Rebellion Developments
Release dates
Windows May 28, 1999
Mac OS (Classic) October 21, 2001
macOS (OS X) October 21, 2001
Monetization One-time game purchase, Expansion pack
Modes Singleplayer, Multiplayer
Pacing Real-time
Perspectives First-person
Controls Direct control
Genres Action, FPS, Stealth, Survival horror
Vehicles Robot
Art styles Stylized
Themes Horror, Sci-fi, Space
Series Aliens versus Predator
Aliens versus Predator on HowLongToBeat
Aliens versus Predator guide on StrategyWiki
Aliens versus Predator on MobyGames
Aliens versus Predator on Wikipedia
Aliens versus Predator
Subseries of Alien
Subseries of Predator
Aliens versus Predator 1999
Aliens versus Predator 2 2001
Aliens vs. Predator 2010


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.

Aliens versus Predator is a singleplayer and multiplayer first-person action, FPS, stealth and survival horror game in the Aliens versus Predator series.

General information Community Discussions Support Page
Steam Community Discussions


Source DRM Notes Keys OS
Disc check (requires the CD/DVD in the drive to play)
2 CDs
Mac OS
macOS (OS X)
Icon overlay.png
Classic 2000 edition.
Classic 2000 edition.
Green Man Gaming
Icon overlay.png
Classic 2000 edition.
Icon overlay.png
Classic 2000 edition. Not available in Germany.
ZOOM Platform
Classic 2000 Edition. Gold Edition also available
Free demo versions are available from Marine, Alien.

Version differences

The Gold Edition includes the base game and the Millennium Expansion Pack.
The Classic 2000 edition includes the added content from the Gold Edition, as well as modifications to run the game on modern systems without requiring tweaking.
Only the and Steam versions of Classic 2000 include multiplayer.
The Classic 2000 edition features plethora of bugs, that were nowhere to be found in the Gold Edition.[1]


DLC and expansion packs

Name Notes
Millennium Expansion Pack Included in the Gold Edition and Classic 2000 edition.

Essential improvements


Patches are available for both the Windows and Macintosh versions. Digital distribution versions are already patched.

Peixoto's patch

Peixoto's patch allows high resolution without shrinking the HUD\menus and Super sampling anti aliasing.


  • Fixed AvP Classic Soundtrack - restore's the Classic version's soundtrack so that the right music is played on the right level. Without it each of the level tracks is played 1 level prior to the level it should be played on.


  • AvP Direct3D9 Renderer - fan made source port used as a base for the Classic 2000 re-release. Compatible with modern systems, but has several bugs (broken Xenoborg rendering, star skybox not being rendered, huge HUD on widescreen resolutions, main menu music not looping, only one CD track being played per level).
  • An unofficial Linux and another OS X port were created and their source code is available here. It contains compiling instructions and required dependencies for compiling.

Game data

Configuration file(s) location

System Location
Windows %LOCALAPPDATA%\Rebellion\AvP Classic\video.cfg
Mac OS (Classic)
macOS (OS X)
Steam Play (Linux) <Steam-folder>/steamapps/compatdata/3730/pfx/[Note 1]

Save game data location

System Location
Windows %LOCALAPPDATA%\Rebellion\AvP Classic\User_Profiles
Mac OS (Classic)
macOS (OS X)
Steam Play (Linux) <Steam-folder>/steamapps/compatdata/3730/pfx/[Note 1]

Save game cloud syncing

System Native Notes
GOG Galaxy
Steam Cloud


General settings.
General settings.

Graphics feature State WSGF Notes
Widescreen resolution
Added in Version 1.01 update for Classic 2000.[2] Cutscenes and main menu are 640x480.
Use Widescreen Fixer to center the HUD.
4K Ultra HD
Text scales very poorly at higher resolutions.
Field of view (FOV)
Use -windowed parameter.
Borderless fullscreen windowed
See the glossary page for potential workarounds.
Anisotropic filtering (AF)
See the glossary page for potential workarounds.
Anti-aliasing (AA)
See the glossary page for potential workarounds.
Vertical sync (Vsync)
See the glossary page for potential workarounds.
60 FPS
FPS higher than 60 causes issues with blood spatter and fps higher than 120 causes character to get stuck[3]
120+ FPS
Classic 2000 edition is capped at 120 FPS.[2]


Keyboard and mouse State Notes
Mouse acceleration
There is negative mouse acceleration.
Also, the more FPS the game runs on, the higher sensitivity is.
Mouse sensitivity
There is a slider for each axis. However, when these sliders are on equal notches, horizontal sensitivity is higher than vertical sensitivity.
Downward movement, and movement to the right both have a small dead-zone, and sensitivity for these directions is slightly lower than for the opposite directions.
Mouse input in menus
Mouse Y-axis inversion
Controller support
Classic 2000 edition supports XInput controllers.
Full controller support
Launcher requires mouse. Full support in-game.
Controller remapping
Controller sensitivity
Controller Y-axis inversion
Controller types
XInput-compatible controllers
PlayStation controllers
Generic/other controllers
Additional information
Controller hotplugging
Haptic feedback
Digital movement supported
Simultaneous controller+KB/M


Audio feature State Notes
Separate volume controls
Surround sound
Up to 7.0 output.[4] May require DirectSound 3D restoration software.
Closed captions
Mute on focus lost
Losing focus often causes a sound loop bug.
EAX support
EAX 1[5]
Royalty free audio
Red Book CD audio
Retail release only.[6]


Language UI Audio Sub Notes
Fan translation.
Fan translation by «ENPY Studio»


Multiplayer types

Type Native Players Notes
LAN play
9 Co-op, Versus
Retail only; removed from digital distribution versions.[7]
Online play
9 Co-op, Versus
The official service has been shut down; the Classic 2000 edition on Steam and has an alternative master server.

Connection types

Type Native Notes
Direct IP
Retail only; removed from digital distribution versions.[7]

Issues fixed

Game crashes at the end of the mission

In some missions game crashes, when player presses any key at the results screen.
Use a restart function[8]
  1. Play through a level like you normally would.
  2. At the end of a level, when the game displays stats press Esc to restart the mission.
  3. Press Esc again to go to in-game menu and choose Abort Play to go back to main menu.
  4. Choose Single Player and after that choose a campaign, they you've just been playing.
  5. Choose a newly unlocked mission from the list and continue your playthrough.
Run AvP_Classic.exe in compatibility mode for Windows 98 / Me and with disabled high DPI scaling.

Other information


Technical specs Supported Notes
Direct3D 6
ExecutablePPC16-bit 32-bit 64-bitARM Notes
A source port for ARM was published in 2013.[9]
macOS (OS X)
Retail edition only.
Requires the unofficial Linux port.[10]
Mac OS (Classic)


Middleware Notes
Audio OpenAL Use AvP Direct3D Renderer
Cutscenes Smacker, Bink Video Smacker version 3.1s, Bink Video version 0.8e

Remove the save limit

By default, the number of saves per level is limited to 8, 4, or 2 (from the easiest to the hardest difficulty).
Use an argument[2]

Use the -unlimitedsaves command line argument.

Enable quick save and quick load

By default, saving and loading can only be done via the menus.
Edit config file[11]
  1. Go to the installation folder.
  2. Open CONFIG.CFG with a text editor (or create it if it does not already exist).
  3. Add the following commands to the file.
  4. When in-game, press F5 to save and F9 to load.


Quick saving and loading always uses the first save slot.

Enable crouch mode toggle

Useful when playing as the Alien.
Edit config file[11]
  1. Go to the installation folder.
  2. Open CONFIG.CFG with a text editor (or create it if it does not already exist).
  3. Add the following commands to the file.
  4. When in-game, press C to enable the toggle and X to disable.

Disable mouse movement being halved when walking/crouching

By default, mouse sensitivity is halved when you either walk or crouch.
Edit AvPx config file
  1. Install AvP Direct3D9 Renderer
  2. After running AvPx.exe once, go to %USERPROFILE%\Documents\My Games\Aliens versus Predator and open AliensVsPredator.cfg
  3. Go to the [Gameplay] section and find the following line:
    TurnSpeedAdjust = true
  4. Change the line to
    TurnSpeedAdjust = false

Aliens versus Predator Classic Redux

A project that updates and expands the original Aliens vs. Predator Classic 2000. It replaces almost every model, texture, and sound in the game with higher quality ones. Every single-player and standard multiplayer map has these improvements, and some single-player levels have significant additions.

System requirements


Operating system (OS) XP, Vista, 7
Processor (CPU) Intel Pentium II 400 MMX
System memory (RAM) 128 MB
Hard disk drive (HDD) 500 MB
Video card (GPU) DirectX 9.0c compatible

Disc Version

Operating system (OS) 95, 98
Processor (CPU) Intel Pentium MMX 200 MHz
System memory (RAM) 32 MB
Hard disk drive (HDD) 64 MB
Video card (GPU) 3dfx Voodoo Graphics
4 MB of VRAM


  1. 1.0 1.1 File/folder structure within this directory reflects the path(s) listed for Windows and/or Steam game data (use Wine regedit to access Windows registry paths). Games with Steam Cloud support may store data in ~/.steam/steam/userdata/<user-id>/3730/ in addition to or instead of this directory. The app ID (3730) may differ in some cases. Treat backslashes as forward slashes. See the glossary page for details.