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MechWarrior 4: Mercenaries

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MechWarrior 4: Mercenaries
MechWarrior 4: Mercenaries cover
Developers
FASA Interactive
Publishers
Microsoft Game Studios
MekTek Studios
Release dates
Windows November 7, 2002
MechWarrior 4: Mercenaries on Wikipedia
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Warnings

SafeDisc DRM does not work on Windows Vista and later (see Availability for affected releases).
⤏ Go to series page
Subseries of BattleTech
MechWarrior 1989
MechWarrior 2: 31st Century Combat 1995
MechWarrior 2: Mercenaries 1996
MechWarrior 3 1999
MechWarrior 4: Vengeance 2000
MechWarrior 4: Mercenaries 2002
MechWarrior: Living Legends (unofficial game) 2009
MechWarrior Online 2012
MechWarrior 5: Mercenaries 2019
MechWarrior 5: Clans 2024

Key points

Comes with all 'Mechs from the MechWarrior 4: Vengeance's expansion
Compatible with MechWarrior 4: Vengeance's Mech Packs.
No longer available as freeware.[1]

General information

BattleTech Wiki - A massive wiki for everything BattleTech related
MechWarrior 4: Mercenaries on TheGameEngine.org - solving some technical issues.

Availability

Source DRM Notes Keys OS
Retail
Disc check (requires the CD/DVD in the drive to play)
 SafeDisc v2 DRM[Note 1].
Windows
SafeDisc DRM does not work on Windows Vista and later (see above for affected releases).
This game is no longer available digitally.[1]

Game data

Configuration file(s) location

System Location
Windows <path-to-game>\options.ini[Note 2]
<path-to-game>\RESOURCE\Pilots\<user-id>\options.mw4[Note 2]

Save game data location

System Location
Windows <path-to-game>\RESOURCE\Pilots\[Note 2]

Video settings

Launcher settings.
Launcher settings.

Template:Video settings

Input settings

Template:Input settings

Audio settings

Audio settings.
Audio settings.

Template:Audio settings

Network

Multiplayer types

Type Native Players Notes
LAN play
Online play
16

Connection types

Type Native Notes
Peer-to-peer
Dedicated
Self-hosting
Direct IP

Issues fixed

"Your current hardware or driver setup is not compatible with MechWarrior 4" error

When attempting to run the game on a modern Nvidia GPU you may receive the error "Your current hardware or driver setup is not compatible with MechWarrior 4..."; you may also be prevented from selecting your graphics card in the autoconfig_MERCS.exe setup program.
Rename imagehlp.dll[4]
  1. Go to <path-to-game>\Assets\Binaries\
  2. Delete or rename imagehlp.dll.
  3. Run autoconfig_MERCS.exe as administrator.
  4. Select the correct GPU and setup options as preferred and click continue. You should now be able to run the game normally.

Other information

API

Technical specs Supported Notes
Direct3D 8.1
Executable 32-bit 64-bit Notes
Windows

System requirements

Windows
Minimum
Operating system (OS) 98, ME, 2000, XP
Processor (CPU) 700 MHz
System memory (RAM) 128 MB
Storage drive (HDD/SSD) 1 GB
3 GB (Free Release)
Video card (GPU) 16 MB of VRAM

Notes

  1. ↑ This version of SafeDisc DRM does not work on Windows 10[2] or Windows 11 and is disabled by default on Windows Vista, Windows 7, Windows 8, and Windows 8.1 when the KB3086255 update is installed.[3]
  2. ↑ 2.0 2.1 2.2 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).

References