Bio Menace

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Bio Menace
Bio Menace cover
Apogee Software
Release dates
DOS August 3, 1993[1]
Windows October 23, 2014[2]
macOS (OS X) May 5, 2015[3]
Linux December 21, 2015[4]
Bio Menace at Wikipedia

Key points

Re-released as freeware on December 23, 2005.[5]

General information Community Discussions Support Page
Steam Community Discussions
3D Realms page


Source DRM Notes Keys OS
DRM details are not known
Official website
macOS (OS X)

Essential improvements[edit]

Run in DOSBox[edit]

To run correctly in DOSBox, set cycles=max and timed=false. Leave all other DOSBox settings at their defaults.[6]

The freeware version includes a DOSBox patch; newer versions of DOSBox don't need this and it can cause problems.

Game data[edit]

Configuration file(s) location[edit]

System Location
DOS <path-to-game>\CONFIG.BM*
Windows <path-to-game>\CONFIG.BM*[Note 1]
macOS (OS X)
Linux (Proton) <Steam-folder>/steamapps/compatdata/358180/pfx/[Note 2]
The extension matches the episode number.
It's unknown whether this game follows the XDG Base Directory Specification on Linux. Please fill in this information.

Save game data location[edit]

System Location
DOS <path-to-game>\SAVEGAM*.BM*
Windows <path-to-game>\SAVEGAM*.BM*[Note 1]
macOS (OS X)
Linux (Proton) <Steam-folder>/steamapps/compatdata/358180/pfx/[Note 2]
Save games are SAVEGAM0.BM1 to SAVEGAM5.BM1; the extension matches the episode number.

Save game cloud syncing[edit]

System Native Notes
GOG Galaxy
Steam Cloud

Video settings[edit]

Options menu.
Options menu.

Input settings[edit]

Key mapping.
Key mapping.

Audio settings[edit]

Audio settings.
Audio settings.
Audio options Native Notes
Separate volume controls
Music can only be toggled; two volume levels for Sound Effects.
Surround sound
Everything is text-based.
Closed captions
Mute on focus lost


Language UI Audio Sub Notes

Issues fixed[edit]

Cursor/character moves constantly[edit]

Ensure you have set the DOSBox joystick timing correctly (see Run in DOSBox).

Other information[edit]


Technical specs Supported Notes
DOS video modes EGA
64-bit executable

System requirements[edit]

Minimum Recommended
Operating system (OS) 3.3
Processor (CPU) 286
System memory (RAM) 575k of conventional memory
Hard disk drive (HDD) 10 MB
Video card (GPU) EGA


  1. 1.0 1.1 When running this game without Administrator elevation, activity in %PROGRAMFILES%, %PROGRAMFILES(X86)%, and %WINDIR% might be redirected to %LOCALAPPDATA%\VirtualStore\ (more details).
  2. 2.0 2.1 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>/358180/ in addition to or instead of this directory. The app ID (358180) may differ in some cases. Treat backslashes as forward slashes. See the glossary page for details.