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Alien Trilogy

From PCGamingWiki, the wiki about fixing PC games
Alien Trilogy
Alien Trilogy cover
Probe Entertainment
Retail Acclaim Entertainment
Digital Throwback Entertainment
Release dates
DOS November 30, 1996
Windows (DOSBox) September 2020
macOS (OS X) (DOSBox) February 17, 2023[1]
Linux (DOSBox) February 17, 2023[1]
Monetization One-time game purchase
Modes Singleplayer, Multiplayer
Pacing Real-time
Perspectives First-person
Controls Direct control
Genres Action, Shooter
Art styles Realistic
Themes Horror, Sci-fi
Series Alien
Alien Trilogy on HowLongToBeat
Alien Trilogy guide on StrategyWiki
Alien Trilogy on MobyGames
Alien Trilogy on Wikipedia
Aliens: A Comic Book Adventure 1995
Alien Trilogy 1996
Aliens Online 1998
Aliens versus Predator (series)
Aliens: Colonial Marines 2013
Alien: Isolation 2014
Aliens: Fireteam Elite 2021
Aliens: Dark Descent 2023

Alien Trilogy is a singleplayer and multiplayer first-person action and shooter game in the Alien series.

Currently unavailable digitally due to rights expiring.


Source DRM Notes Keys OS
Disc check (requires the CD/DVD in the drive to play)
ZOOM Platform (unavailable)
Pre-packaged with DOSBox.
macOS (OS X)

Game data

Configuration file(s) location

System Location
DOS <path-to-game>\TRILOGY.CFG

Save game data location

System Location
DOS <path-to-game>\TRIL.SG*
10 save slots available. Game can only be saved between levels.


Graphics feature State Notes
Widescreen resolution
320x240 only.
4K Ultra HD
Field of view (FOV)
For DOSBox toggle with Alt+ Enter (see the glossary page for other workarounds).
Borderless fullscreen windowed
See the glossary page for potential workarounds.
Anisotropic filtering (AF)
Anti-aliasing (AA)
Vertical sync (Vsync)
For DOSBox use an unofficial build (see the glossary page for other workarounds).
60 FPS and 120+ FPS
Game never goes above 45 FPS.
High dynamic range display (HDR)
Ray tracing (RT)


In-game general control settings.
In-game general control settings.
In-game key map settings.
In-game key map settings.
In-game mouse settings.
In-game mouse settings.

Keyboard and mouse State Notes
Map/Inventory button cannot be rebound away from Esc. Quick weapon selection cannot be rebound away from the number keys.
Mouse acceleration
Mouse sensitivity
For DOSBox set in the DOSBox configuration file.
Mouse input in menus
Mouse Y-axis inversion
Mouse Y-axis permanently bound to moving forward/backward.
Controller support
Full controller support
While it is possible to scroll through menu items and access submenus, it seems impossible to go back
Controller remapping
For DOSBox use the DOSBox Mapper (see the glossary page for other workarounds).
Controller sensitivity
Controller Y-axis inversion
Controller types
XInput-compatible controllers
PlayStation controllers
Tracked motion controllers
Button/gesture prompts
Generic/other controllers
Button prompts
Additional information
Controller hotplugging
Haptic feedback
Digital movement supported
Simultaneous controller+KB/M


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

Audio feature State Notes
Separate volume controls
CD music, sound effects.
Surround sound
Closed captions
Mute on focus lost
For DOSBox change the priority background value in the DOSBox configuration file.
Royalty free audio
Red Book CD audio


Language UI Audio Sub Notes


Multiplayer types

Type Native Players Notes
Local play
LAN play
Online play
For DOSBox use DOSBox IPX/modem emulation.

Connection types

VR support

3D modes State Notes
Native 3D
VFX1 Headgear

Issues fixed

Running the game with DOSBox

Alien Trilogy may run at ludicrous speed if launched using DOSBox's default settings.
Change core setting to normal for correct game timing[2]
  1. In DOSBox's .conf file, change core=auto to core=normal.

Other information


Technical specs Supported Notes
DOS video modes SVGA

System requirements

Operating system (OS) MS-DOS
Processor (CPU) 66 MHz
System memory (RAM) 8 MB
Hard disk drive (HDD) 2 MB Free
Video card (GPU) VGA
1 MB of VRAM


  1. 1.0 1.1 Given only to prior owners via an update; not available for purchase at time of release.
  2. Verified by User:Antrad on April 4, 2023