X-COM: Terror from the Deep

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X-COM: Terror from the Deep
X-COM: Terror from the Deep cover
Developers
MicroProse
Publishers
MicroProse
Hasbro Interactive
Current 2K Games
Release dates
DOS April 1, 1995
Windows May 4, 2007
X-COM: Terror from the Deep guide at StrategyWiki
X-COM: Terror from the Deep at Wikipedia
X-COM
X-COM: UFO Defense 1994
X-COM: Terror from the Deep 1995
X-COM: Apocalypse 1997
X-COM: Interceptor 1998
X-COM: Email games 1999
X-COM: Enforcer 2001
XCOM: Enemy Unknown 2012
The Bureau: XCOM Declassified 2013
XCOM 2 2016

Key points

OpenXCom is currently available for TftD, with a new beta build every night.

General information

UFOpaedia - A huge wiki for the XCOM series
GOG.com Community Discussions for game series
GOG.com Support Page
Steam Community Discussions
OpenXCom for a beta build of OpenTFTD, an open-source restoration project.

Availability[edit]

Source DRM Notes Keys OS
Retail
DRM details are not known
Run in DOSBox.
DOS
GOG.com
DRM-free
Windows
Steam
Icon overlay.png
Windows

Version differences[edit]

The Collectors Edition ("Gold") is Windows native and, thus, wont run in DOS.

Essential improvements[edit]

OpenXcom[edit]

An open-source, multi platform remake with various improvements.[1][2]
Unlimited save games support, along with native widescreen support and proper audio formats.
DOSBox no longer required, simply copy the new OpenXcom files where the main executable is located or use the provided installer.
Beta builds of TftD are compatible with both XCOM: UFO Defense as well as Terror form the Deep.
New beta builds are released every night.

Original MS-DOS and CE[edit]

Patches[edit]

Patch 2.1 and the beta geoscape patch will update the game to the latest. Be sure to apply the 2.1 patch before the beta geoscape one, which is actually the latest patch despite it's name. It should be noted that the CE version and digital versions use the 2.0 patch only; it may be beneficial to install the 2.1 which fixes a research tree bug. However using the geoscape patch with CE is impossible unfortunately as it replaces the game executable, which it only provides in DOS form.
Run with TFTD Extender plus XcomUtil[citation needed]
TFTD Extender is CE version only. XcomUtil however works on both versions. If you only have the DOS version you can replace some of UFO Extender's functionality with BaseFixer: info on getting Python working in DOSBox is available here and a modified linker for XcomUtil 9.7+ integration can be found here.

The TFTD Extender program runs on the Windows version, providing a mouse-resizable window, a smoother-running, more responsive screen than DOSBox, and a host of fixes for various bugs or exploits in the game.. It also supports the use of higher-quality .mp3 music from the PlayStation release, and keyboard shortcuts. XcomUtil provides bug fixes, including for the disjointed-base bug, and additional ease-of-use features like the automatic re-equipping of soldiers before a mission and appending rank and stat info to soldier names.

Both also offer many gameplay modifications such as enhanced weaponry, different starting-base layouts, and randomized terrain and UFO layouts. These are all optional and turned off by default.

The programs are confirmed to run on Windows 7 as well as older operating systems, and with the Steam release.

XcomUtil supports the TFTDExtender launcher, but assumes the use of DOS or DOSBox at several points in the installation process, so specific steps are required to run them simultaneously:

  1. Install X-COM. If installing from CD, make sure it is a full installation.
  2. Download the UFO Extender loader "TFTDextender.zip", available at this Ufopaedia page, and extract it directly to the folder "TFTD", which is inside the base installation folder (e.g. "Terror from the Deep") in distributions with DOSBox.
  3. In the "TFTD" folder open TFTDExtender.ini, find "D3D=0" and change it to "D3D=1" and change the value of "D3D Windowed" from 0 to 1. Save and close the modified .ini file.
    • On Windows 7 and Vista, you'll only be able to run this mod combo in a window. It will launch work once in fullscreen, and not again subsequently (The window can be maximized though).[citation needed]
    • If you do not wish to install XcomUtil as well, stop here, and you may run the game by launching "TFTDLoader.exe" in the "TFTD" folder.
  4. Download the XcomUtil install file, currently "XcomUtil 9.7 Beta-442.exe", available at the downloads page at Bladefirelight.com. Run this file, again directly selecting the "TFTD" folder as the install location. If unavailable, use this .zip file for build 442, extract it into the TFTD folder.
  5. Note that XcomUtil does not officially support TFTD yet so you need to download this mini patch and extract it to the the "TFTD" folder and then run XcuSetup.bat. The patch is old so you may have to rename TFTD Extender's exe to "TFTDLoader.exe" for XcomUtil to detect it properly.
  6. XcomUtil setup should now be running in a cmd.exe window. If the cmd.exe screen appears blank, right-click on its title bar and select Properties. Under the Colors tab set "Screen Text" to a contrasting color from "Screen Background".
  7. When asked if you wish to configure XcomUtil now, enter "yes" and allow the program to run.
    • XcomUtil setup may also ask Steam users if they wish to use XcomUtil when X-COM is launched from Steam. However, launching from within Steam will still launch DOSBox instead of the UFO Extender launcher, so select "no". You cannot launch with UFO Extender from Steam's menu.
  8. On the screen that says "Windows 7/Vista has Issues displaying DOS/Win. On startup you get a blank screen..." enter "no" to decline installing the patch suggested.
  9. Enter "yes" when asked if you wish to enable the use of UFO Extender when you launch the game.
  10. Continue answering the rest of the prompts with the options you prefer. If you do not wish to change gameplay, you can still enable the re-equipping of soldiers before each battle with their last set of items, and the automatic addition of useful information to soldier name strings after battles. Info on all the options can be found in the "XcomUtil.txt" file in the "XComUtil" folder.
  11. If you want to change these options, run setup again by launching "XcuSetup.bat" in the "TFTD" folder. You can also do this after starting a game.
  12. You may now launch the game by running "RunXCom.bat" (not "TFTD.bat") in the "TFTD" folder.
    • If you are running Steam do not launch X-COM directly from its menu.
    • Do not run the file "xcomutil.exe" to launch the game. It will not work outside DOS or DOSBox. Xcomutil.exe simply provides a launch menu, with options for running the Xcomutil setup and the X-COM sound programs.
  13. Set additional UFO Extender options as you see fit by altering TFTDextender.ini with Notepad. Information can be found here. In the provided download, all options are off by default, including enhancements that do not affect gameplay. You may enable Geoscape and Battlescape keyboard shortcuts and the stat display on the equip screen by setting the appropriate "Apply" values from 0 to 1, and set the keyboard shortcuts.
  14. To use the enhanced music from the PlayStation version of the game, download the appropriate .mp3 files found [hhttp://openxcommods.weebly.com/downloads10.html here] (right-click and select to save the links). Place them together in a new folder inside your XCOM folder. Name the new folder "mp3". Open "TFTDExtender.ini" with Notepad and under the "Music" heading set "Apply" from 0 to 1. Set the track names to match those in the new mp3 folder.

DOS/32A[edit]

DOS/32A is a more advanced extender and open source replacement to DOS4GW. It can improve both performance and stability of X-COM.

It is recommended to turn off the extender's warning messages with it's included ss.exe as they can be rather annoying and show up often when transitioning from geoscape to tactical mode.

Run in DOSBox[edit]

To improve DOSBox performance make the following changes to the DOSBox configuration file:

  • Change output=surface to output=opengl
  • Change memsize=16 to memsize=64
  • Change cycles=auto to cycles=auto limit 10000
  • Change prebuffer=20 to prebuffer=10

Force enable videos instead of slides[edit]

  1. Copy the ANIMS\ folder from the CD-ROM into the game directory
  2. Create a file called cdspeed.dat and place it in the SOUND\ directory.
Only relevant on a hard disk install of the game (CD installs always use videos). Digital version already have this tweak applied.

Enabling GUS music[edit]

UFOPedia has an excellent article on this here.

Game data[edit]

Configuration file(s) location[edit]

System Location
DOS
Windows
Linux (Proton) <Steam-folder>/steamapps/compatdata/7650/pfx/[Note 1]

Save game data location[edit]

System Location
DOS
Windows <path-to-game>\GAME_*
Linux (Proton) <Steam-folder>/steamapps/compatdata/7650/pfx/[Note 1]

Save game cloud syncing[edit]

System Native Notes
GOG Galaxy
Steam Cloud

Video settings[edit]

Input settings[edit]

Keyboard and mouse Native Notes
Remapping
For DOSBox use the DOSBox Mapper (see the glossary page for other workarounds).
Mouse acceleration
Mouse sensitivity
Mouse input in menus
Mouse Y-axis inversion
Controller
Controller support
For DOSBox use the DOSBox Mapper (see the glossary page for other workarounds).

Audio settings[edit]

Audio options Native Notes
Separate volume controls
Surround sound
Subtitles
Most speech is text-based.
Closed captions
Mute on focus lost

Localizations

Language UI Audio Sub Notes
English
French
German
Spanish
Italian
Use the 8 in 1 Language patch, available for CE here
Standalone patch also available here
Polish
Use the 8 in 1 Language patch, available for CE here
Czech
Use the 8 in 1 Language patch, available for CE here
Hungarian
Use the 8 in 1 Language patch, available for CE here

Network[edit]

Multiplayer types

Type Native Players Notes
Local play
2 Versus
Hotseat. Requires XcomUtil; a tutorial explaining the process can be found here. A batch to simplify the process can also be found here (direct link).
LAN play
2 Versus
Use the above method, but also requires passing save files around via sneakernet (physical media)
Online play
2 Versus
Same as above, but use email instead of sneaker net.

Issues fixed[edit]

Almost every single major bug has been fixed in OpenXcom.

Research tree bugs[edit]

The Research tree bugs can generally be fixed by using TFTDExtender of XcomUtil. If you are reluctant to use these you could try the TRTBAG instead.

No music when attempting to play digital versions of CE[edit]

Some digital versions of CE shipped without their MIDI sheet. Copy these into the sound\ directory.

Other information[edit]

API[edit]

Technical specs Supported Notes
Software renderer
DOS video modes VGA SVGA compatible.
64-bit executable

System requirements[edit]

DOS
Minimum Recommended
Operating system (OS) 5.0 6.2
Processor (CPU) Intel 386 33 MHz Intel 486 50 MHz
System memory (RAM) 4 MB 8 MB
Hard disk drive (HDD) 60 MB 63 MB
Video card (GPU) VGA SVGA

Notes

  1. 1.0 1.1 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>/7650/ in addition to or instead of this directory. The app ID (7650) may differ in some cases. Treat backslashes as forward slashes. See the glossary page for details.

References