Lifeforce Tenka

From PCGamingWiki, the wiki about fixing PC games
Lifeforce Tenka
Lifeforce Tenka cover
Release dates
Windows January 22, 1998
Lifeforce Tenka on HowLongToBeat
Lifeforce Tenka on IGDB
Lifeforce Tenka on MobyGames
Lifeforce Tenka on Wikipedia

Key points

Released as Lifeforce Tenka in Europe and Codename: Tenka in North America.
Poor compatibility with modern systems.


Source DRM Notes Keys OS
Disc check (requires the CD/DVD in the drive to play)
This game is not available digitally.

Game data[edit]

Configuration file(s) location[edit]

System Location
Windows HKEY_CURRENT_USER\Software\Psygnosis\Tenka\

Save game data location[edit]

System Location
Windows <path-to-game>\save\tenka.sav[Note 1]
All saves are stored in tenka.sav.
Information on how to edit the file with an hexadecimal editor can be found here.


Resolution selection screen
Resolution selection screen

Graphics feature State Notes
Widescreen resolution
Up to 720p.
4K Ultra HD
Field of view (FOV)
Alt-tabbing will cause the game to flicker and freeze on the last frame it displayed before losing focus.
Borderless fullscreen windowed
See the glossary page for potential workarounds.
Anisotropic filtering (AF)
See the glossary page for potential workarounds.
Anti-aliasing (AA)
See the glossary page for potential workarounds.
Vertical sync (Vsync)
60 FPS
A frame rate above 30 FPS will cause the game to run too fast and render timed missions impossible to complete. See Game runs too fast.
120+ FPS
High dynamic range display (HDR)


Control settings menu
Control settings menu


Audio settings menu
Audio settings menu

Audio feature State Notes
Separate volume controls
Sound effects, Music, Speech
Surround sound
Closed captions
Mute on focus lost
Red Book CD audio
See Background music doesn't play.


Language UI Audio Sub Notes

Issues fixed[edit]

Installer won't run on 64-bit operating systems[edit]

Use a 32-bit executable[1][2]
  1. Copy the content of the CD in a folder.
  2. Download this generic 32-bit version of the InstallShield 3 setup engine.
  3. Extract the file in the folder along with the CD's content.
  4. Delete SETUP.EXE and rename the new file after it.
  5. Proceed to install the game with the new executable file.
The folder may be safely deleted after the installation is complete.

Game runs too fast[edit]

Cap the frame rate at 30 FPS[2]
If using RivaTuner Statistics Server, detection level needs to be set to Medium.

Mouse controls are nearly unresponsive[edit]

Decrease mouse polling rate to 125 Hz[2]

Background music doesn't play[edit]

Patch the executable with _inmm.dll[2]
Applying this fix breaks control over music volume. It is recommended to increase sound effects and speech volume then lowering the overall game volume instead to get a decent mix as the music volume is very loud by default.
  1. Copy all the .wav files from the CD to the game's root folder.
  2. Download and install _inmm.dll.
  3. Open _inmm.dll Setup
  4. On the Method tab, make sure that .wav's method is set to DirectShow.
  5. Select the _inmm.dll tab, then click Add.
  6. Go to the game's root folder and select all the .wav files.
  7. Select Save and save the .ini file in the game's root folder. Close _inmm.dll Setup.
  8. Drag and drop tenka.exe onto _inmmcnf.exe. Select OK on the prompt asking to confirm the patching process.

Cutscenes don't play[edit]

Set Windows compatibility mode on "Windows 95"[2]

Other information[edit]


Technical specs Supported Notes
Direct3D 3
Executable 32-bit 64-bit Notes

System requirements[edit]

Minimum Recommended
Operating system (OS) 95
Processor (CPU) Intel Pentium 100
System memory (RAM) 16 MB
Hard disk drive (HDD) 40 MB
Video card (GPU) SVGA
1 MB of VRAM


  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).


  1. Installing 32-bit programs with 16-bit setup launcher stubs - ReactOS Website - last accessed on November 18, 2018
  2. 2.0 2.1 2.2 2.3 2.4 Verified by User:Azatoth on November 29, 2018