The various help files are grouped under the sub-headings below. Most help files are given in their raw text format; links to full-html versions are provided where possible, in which case the abbreviations used are:

UWV = USA Web Version | EWV = European Web Version | LWV
= Local Web Version

• What is the Doom Help Service?

• Background, news, what's new, etc.

• What is Doom?

• Where and how can I get hold of Doom/Doom II/Ultimate Doom?

• The RGCD FAQ (frequently asked questions) [ UWV | EWV | LWV ]

• The Doom FAQ v6.666, by Hank Leukart.

• Cheats and Spoilers (secrets, level walkthroughs, etc)

• Doom FTP and World Wide Web Sites [ UWV | EWV | LWV ]

  
  

• Doom Levels Technical Information:
  • What is a WAD file? (also IWAD, PWAD, etc)

  • How do I use a PWAD (add-on level) file?

  • How do I go about creating my own add-on levels?

  • How do I record my Doom sessions? (making .lmp demos)

    
    

• Doom Editing Information (see also the file Depot below):
  • The Doom & Doom II Editing Guide, by Jan-Albert B. van Ree.

  • The Unofficial Doom Specs v1.666, by Matthew S. Fell.

  • Doom Level Design FAQ v1.2, by Tom Neff.

  • BSP TREE FAQ and a BSP Article.

  • DEU Help File v1.2, by Jawed Karim.

  • How was the famous TRINITY2.WAD made? (by Steve McCrea).

  • DEU 4 Dummies, by David Biggs.

  • DEU 4 Idiots, by Greg Cymbalist and Chris Durston.

    
    

• Network and Multiplayer Information:
  • The Doom Network Troubleshooting Guide, by Murray Chapman.

  • The TCP/IP Internet Doomer's FAQ, by Scott Coleman and Jay Cotton.

  • DOOM Modem Help, Version 3.13, by Keith Turbyfill & Ian Mapleson.

    
    

• Platform & Environment-Specific Information (SGI, Linux, Sun, WIndows, etc):
  • The SGI Doom FAQ, by John Troyer and the SGI Doom README file.

  • How to play Registered Doom, etc., on SGI systems.

  • The Linux Doom FAQ, by Steve VanDevender.

  • How to run Doom under Windows 3.1.

  • Some cool Windows Doom icons, by Robert J. Baker.

  • How to run Doom/Doom II under OS2/Warp, by Brian Kidby.

  • The SNES Doom FAQ v1.3, by H.J. Hornbeck.

    
    

• Patch File Information:
  • Some useful hints on using patch files.

  • Special info on patching Doom v1.2 (includes control bug description).

  • Miscellaneous information on patching Doom II.

    
    

• Miscellaneous:
  • An introduction to ftp and how to use it.

  • How to get Doom files from ftp sites by email.

  • Where to get some useful utilities by ftp.

  • The BFG FAQ v1.3, by Tony Fabris.

    
    

• Other 3D Games:
  • Quake [3D Games index].

  • The "DOOM: Other 3D Action Games" FAQ, by Frans P. de Vries.
    [ UWV | EWV | LWV ]

  • The Heretic FAQ v1.0, by Tom Laufert.

  • The Heretic Secrets List, by Paul Falstad.

  • The Wolfenstein 3D Cheats, chiefly by Ben Rudiak-Gould.

  
  
• File Depot (some useful utilities, files, etc.)

• Doom Publicity (newspaper articles, etc).

• My visit to the USA (Id Software/Paradigm/NOA/Dallas/Tacoma/Seattle).

• The day I met Raphael Quinet at Glasgow Airport.