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Alien Shooter

From PCGamingWiki, the wiki about fixing PC games
Alien Shooter
Alien Shooter cover
Sigma Team
Release dates
Windows June 12, 2003
Series Alien Shooter
Alien Shooter on HowLongToBeat
Alien Shooter on MobyGames
Alien Shooter on Wikipedia
Alien Shooter
Alien Shooter 2003
Theseus: Return of the Hero 2005
Alien Shooter: Vengeance 2007
Alien Shooter 2: Reloaded 2009
Alien Shooter: Revisited 2009
Alien Shooter 2: Conscription 2010
Alien Shooter TD 2017
Alien Shooter 2: The Legend 2020

Key points

Very limited graphical options.
Keys can only be rebound by editing a config file.

General information Community Discussions for game series Support Page
Steam Community Discussions


Source DRM Notes Keys OS
Requires online activation
ASProtect DRM in Russia. UK version was sold as Invasion: Earth. In-game text is different from Alien Shooter.
Bundled with both expansions.
ZOOM Platform
Bundled with both expansions.
Icon overlay.png
Version 1.22.
Developer website
Requires online activation
ASProtect DRM. Base game only. Expansions available standalone.
Developer website
Requires online activation
ASProtect DRM. Alien Shooter Gold Pack. Base game only. Also contains Alien Shooter 2: Reloaded and Zombie Shooter.
Developer website
Requires online activation
Russian version.

DLC and expansion packs

Name Notes
Fight for Life
The Experiment

Game data

Configuration file(s) location

System Location
Windows HKEY_CURRENT_USER\Software\SigmaTeam\AlienShooter\
<path-to-game>\AlienShooter.cfg[Note 1]
Steam Play (Linux) <SteamLibrary-folder>/steamapps/compatdata/33100/pfx/[Note 2]

Save game data location

System Location
Windows HKEY_CURRENT_USER\Software\SigmaTeam\AlienShooter\<user-id>
Steam Play (Linux) <SteamLibrary-folder>/steamapps/compatdata/33100/pfx/[Note 2]

Save game cloud syncing

System Native Notes
GOG Galaxy
Steam Cloud


Game's launcher.
Game's launcher.

Graphics feature State Notes
Widescreen resolution
Limited to 640x480, 800x600 and 1024x768 by default. Steam version in fullscreen 1440x900 (inside perhaps 1280x720 with black borders). A hack for GOG version enables several resolutions up to 1920x1080. There's a similar one for Steam. At least one level for the expansion, The Experiment [Mission 04 - Testing Laboratory] will crash if set to a higher resolution. Also, high resolutions allow a bit of cheating by being able to shoot further than monsters can normally see.
4K Ultra HD
Field of view (FOV)
See Windowed. Steam version toggleable.
Borderless fullscreen windowed
See the glossary page for potential workarounds.
Anisotropic filtering (AF)
Anti-aliasing (AA)
Vertical sync (Vsync)
Enabled by default. See Vertical sync (Vsync).
60 FPS
120+ FPS


Edit registry to set window mode[citation needed]
Playing in a window mode may be problematic, as the mouse cursor is not grabbed by the game's window.
  1. Go to HKEY_CURRENT_USER\Software\ETeam\SW
  2. Change the FullScreen value to 0.

Vertical sync (Vsync)

Disable Vsync by editing AlienShooter.cfg[citation needed]
  1. Go to the installation folder.
  2. Open AlienShooter.cfg
  3. Change VSync=1 to VSync=0.



Change controls by editing AlienShooter.cfg[citation needed]
  1. Go to the installation folder.
  2. Open AlienShooter.cfg using Notepad.
  3. Below [control] you'll find actions bound to specific keys.
  4. Change keys to your liking leaving action names unchanged.


Audio feature State Notes
Separate volume controls
Surround sound
Closed captions
Mute on focus lost
Royalty free audio


Language UI Audio Sub Notes
Local retail version only. Patch for digital release here.
Fan translation, download.
Fan translation by rubinho146, Including expansions, Download

Issues fixed

The game crashes at level 1

When going to the right hand side of the map, the game crashes.

Use dgVoodoo 2
  1. Download dgVoodoo2.
  2. Extract the files from the archive.
  3. Copy D3D8.dll from extracted archive folder\MS\x86 to the game folder.
  4. Copy dgVoodoo2.conf file from the extracted archive folder to the game folder.

Reborn crash

If the player dies and they have an extra life, the game will crash.

Use dgVoodoo 2. See the above entry for details.

Medkit crash

If the player's HP is down to zero, the medkit should activate. However, on modern systems the item crashes the game.

Use dgVoodoo 2. See the above entry for details.

Erroneous Display Problem

This issue happens when running the game in a resolution with 16-bit color depth.

Set the resolution with 32-bit color depth at game's launcher.

Other information


Executable 32-bit 64-bit Notes

System requirements

Operating system (OS) 2000, XP, Vista
Processor (CPU) Intel Pentium III 800 MHz
System memory (RAM) 128 MB
Hard disk drive (HDD) 50 MB
Video card (GPU) 32 MB of VRAM


  1. When running this game without elevated privileges (Run as administrator option), write operations against a location below %PROGRAMFILES%, %PROGRAMDATA%, or %WINDIR% might be redirected to %LOCALAPPDATA%\VirtualStore on Windows Vista and later (more details).
  2. 2.0 2.1 Notes regarding Steam Play (Linux) data: