Warhammer 40,000: Chaos Gate

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Warhammer 40,000: Chaos Gate
Warhammer 40,000: Chaos Gate cover
Random Games Inc.
Strategic Simulations Inc.
Release dates
Windows October 31, 1998
Modes Singleplayer, Multiplayer
Pacing Turn-based
Perspectives Bird's-eye view, Isometric
Controls Point and select
Genres Strategy
Themes Sci-fi
Series Warhammer 40,000: Chaos Gate
Warhammer 40,000: Chaos Gate on HowLongToBeat
Warhammer 40,000: Chaos Gate on IGDB
Warhammer 40,000: Chaos Gate on MobyGames
Warhammer 40,000: Chaos Gate on Wikipedia
Warhammer 40,000: Chaos Gate
Subseries of Warhammer 40,000
Warhammer 40,000: Chaos Gate 1998
Warhammer 40,000: Chaos Gate - Daemonhunters 2022

Key points

The game is unplayable by default on Windows 10. See Warhammer 40,000 Chaos Gate Windows 10 Patch.
Cannot use Alt+Tab while in-game

General information

Lexicanum - A huge wiki for the Warhammer 40,000 series
GOG.com Community Discussions
GOG.com Support Page


Source DRM Notes Keys OS
Disc check (requires the CD/DVD in the drive to play)

Essential improvements[edit]


Warhammer 40,000: Chaos Gate Updates contains all the currently released patches for the game.

Game data[edit]

Configuration file(s) location[edit]

System Location
Windows <path-to-game>\[Note 1]

Save game data location[edit]

System Location
Windows <path-to-game>\Save_G[Note 1]

Save game cloud syncing[edit]

System Native Notes
GOG Galaxy



Keyboard and mouse State Notes
Full rebinding in the options menu.
Mouse acceleration
Mouse sensitivity
Mouse input in menus
Mouse Y-axis inversion
Controller support
See the glossary page for potential workarounds.


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


Language UI Audio Sub Notes


Multiplayer types

Type Native Notes
LAN play
Online play

Connection types

Issues unresolved[edit]

Windows 10 compatibility problems[edit]

The game has compatibility issues on Windows 10.[1]
See Chaos Gate fixes for Windows 10 for various fixes.

to fix this:


Start the game and press ESC to skib cutscenes. In the main menu press "O" to get into options In the options menu press "S" to disable music In the options Menu press Enter to save and exit Quit the game

In Windows Press windows key+R to open the Run window type: REGEDIT in the run window In the Registry Editor go to the following address Computer\HKEY_CURRENT_USER\SOFTWARE\Classes\VirtualStore\Machine\SOFTWARE\Wow6432Node\RandomGames\WH40K\1.0 Double click on Music (the Value data for music should be: No Change the Value data for Music to: Yes Change the Value data for Music Volume to: 50 (or whatever you like) Change the Value data for Unit Animation Speed to: 88 (or whatever you like)

Go to your ChaosGate folder and change the WH40k.exe file to WH40.exe Start the game and close it again


In Windows Press windows key+R to open the Run window type: REGEDIT in the Run window In the Registry Editor go to the following address Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers Change the Value data for the Wh40.exe entry to: $ DWM8And16BitMitigation 8And16BitTimedPriSync 8And16BitAggregateBlts Layer_ForceDirectDrawEmulation


Tooltip performance issues[edit]

Hovering tooltips can slow down the game immensely.

Issues fixed[edit]

Game runs very slow on Windows 10[edit]

Use Elisha's Windows 10 Patch[citation needed]
  1. Download the Warhammer 40,000 Chaos Gate Windows 10 Patch.
  2. Unzip the files to the installation folder.

Game crashes on startup[edit]

Comptability mode[citation needed]

Enable the following compatibility settings for WH40K.exe located in <path-to-game>.

  • Compatibility mode Windows XP (Service Pack 2)
  • Run in 256 colors (XP/Vista/7)
  • Disable visual themes (XP/Vista/7)
  • Disable desktop composition (XP/Vista/7)
  • Disable display scaling on high DPI settings
  • Run this program as an administrator

Crash to desktop on Chaos turn[edit]

Editing WeapDef.dat[citation needed]
Make a backup of the WeapDef.dat file before editing.
  1. Go to <path-to-game>\Data\
  2. Open WeapDef.dat with a text editor.
  3. Go to line 201 and change PlazPistHit.wav to PlazpistHit.wav.
  4. Save changes.
If the crashing persists change the following lines as well
  1. Go to line 165 and change 4 #Animation to 5 #Animation.
  2. Go to line 200 and change 2 #Number of Sound Effects for Firing to 1 #Number of Sound Effects for Firing.
  3. Go to line 202 and add # to the beginning of the line.

Game crashes on mission start[edit]

Instructions[citation needed]
  • The installation path can only have 2 subfolders and 35 characters total. If the game crashes, place the installation folder closer to the root drive. (e.g. Instead of installing to C:\GOG Games\WH40K Chaos Gate, try creating/installing to a location such as C:\Chaos Gate or C:\WH40K)

Graphical corruption[edit]

See Rainbow color problems in older games for solutions.

Other information[edit]


Executable 32-bit 64-bit Notes

System requirements[edit]

Operating system (OS) 95
Processor (CPU) Intel Pentium 133 MHz or Equivalent
System memory (RAM) 16 MB
Hard disk drive (HDD) 80 MB
Video card (GPU) 2 MB of VRAM


  1. 1.0 1.1 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).