Bio Menace

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

Key points

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

General information Community Discussions Support Page
Steam Community Discussions


Source DRM Notes Keys OS
DRM details are not known
Official website
macOS (OS X)
ZOOM Platform
macOS (OS X)
Steam (unavailable)
Icon overlay.png
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> (mounted in DOSBox)[Note 1]
macOS (OS X) <path-to-game> (mounted in DOSBox)[Note 1]
Linux <path-to-game> (mounted in DOSBox)[Note 1]
Steam Play (Linux) <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> (mounted in DOSBox)[Note 1]
macOS (OS X) <path-to-game> (mounted in DOSBox)[Note 1]
Linux <path-to-game> (mounted in DOSBox)[Note 1]
Steam Play (Linux) <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


Options menu.
Options menu.

Graphics feature State Notes
Widescreen resolution
320x200 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
35 fps frame rate cap.[7]


Key mapping.
Key mapping.


Audio settings.
Audio settings.

Audio feature State 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
For DOSBox change the priority background value in the DOSBox configuration file.


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

System requirements[edit]

Minimum Recommended
Operating system (OS) 3.3
Processor (CPU) 286
System memory (RAM) 640 KB
Hard disk drive (HDD) 10 MB
Video card (GPU) EGA


  1. 1.0 1.1 1.2 1.3 1.4 1.5 File/folder structure within the installation folder reflects the path(s) listed for DOS game data. For the release, file changes in DOSBox are redirected to <path-to-game>/cloud_saves/ even if GOG Galaxy is not used (this folder contains all redirected files, so some files in the cloud_saves folder might be temporary files or other files that do not contain saves or settings).
  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.