Here are level editors and tools directly involved with level editing:

Blocked - Win32 UI program Structure creator for DMB2.
Download current version: V1.0 Beta 01 - 10/29/1997 (1888 kB) Explore Version Archive Send eMail to author: Luke Schneider

DBB - Descent Block Builder - Win16 UI program Structure creator for DMB2.
Download current version: V2.1 - 09/24/1997 (70 kB) Explore Version Archive Send eMail to authors: Luke Schneider, Bryan Aamot

DCheck - Available as DOS console application, Win16 UI and Win32 UI program Generates reports of levels for Descent 1/2.
Download current Win32 version: V1.1 - 04/14/1998 (638 kB) Download current Win16 version: V1.1 - 04/14/1998 (826 kB) Download current DOS version: V1.0 - 09/26/1997 (28 kB) Explore Version Archive Send eMail to authors: Peter Runge Go to official homepage

Devil - DOS UI program The classic D1/D2 level editor.
Download latest unofficial version: V2.2lc2 - 08/16/1998 (672 kB) Download current official version: V2.2l - 22/06/1997 (548 kB) Explore Version Archive Send eMail to author: Achim Stremplat Go to official homepage

DMB2 - Descent Mission Builder 2 - Win16 UI program The official D1/D2 level editor.
Download demo version (975 kB) Download V2.6 update for full version (896 kB) Information on how to buy this product Go to official homepage Go to DMB2 Resource Guide homepage

LVLVIEW32 - Descent Manager Win32 UI module Descent 1 and 2 WYSIWYG level viewer.
Go to Descent Manager LVLVIEW32 homepage for more information and download Go to Descent Manager PLAYER KIT homepage

Miner - DOS UI program The original D1 level editor used by Parallax to create the original D1 levels.
Current version: V1.61 - 02/22/1998 (747 kB) Go to D1X homepage - containing source code for D1X and MinerX

Here are tools for the D3 players. This includes save-game editors, player editors etc.

DEMOEDIT/DOS - Descent Manager DOS UI module Edit Descent 1 and 2 demo files.
Go to Descent Manager DEMOEDIT/DOS homepage for more information and download

DETLEF32 - Descent Manager Win32 UI module Professional, but still easy-to-use level downloader.
Go to Descent Manager DETLEF32 homepage for more information and download Go to Descent Manager PLAYER KIT homepage

DSPY32 - Descent Manager Win32 UI module Monitor Descent 1 and 2 net games played via Kali, Kahn or LAN.
Go to Descent Manager DSPY32 homepage for more information and download Go to Descent Manager PLAYER KIT homepage

Kahn - Win32 UI program Play Descent 1 and 2 online (works only under Win95/98, no NT/2000 support).
Go to official homepage

Kali - Win32 UI program Play Descent 1 and 2 online.
Go to official homepage

PLREDIT32 - Descent Manager Win32 UI module View D2 lifetime rankings and edit D1/D2 taunt macros "offline".
Go to Descent Manager PLREDIT32 homepage for more information and download Go to Descent Manager PLAYER KIT homepage

Here are tools to view and edit D3 resources. This includes texture, model, HOG, ... viewers, converters and editors.

256ED - Available as DOS console application and Win32 UI program Descent 2 Palette Editor.
Current version: V1.1 for Windows 9x/NT - 11/30/1998 (97 kB) Current version: V1.0 for DOS- 04/30/1998 (20 kB) Explore Version Archive Send eMail to author: Antony Galica

BriefEd - Win16 UI program Briefing editor for Descent 1 and Descent 2 (V1.2).
Current version: V1.0 - 06/27/1997 (37 kB) Explore Version Archive Send eMail to author: Micah Jon Lieske Go to official homepage

COB2PM - Win32 console application Creates Descent 2 polygon model files out of TrueSpace models.

Download current version: V0.73 - 04/17/1999 (61 kB) Explore Version Archive Send eMail to author: Garry Knudson Go to official homepage

DTX/DTX2 - Win16 UI program Resources editor: edits musics, sounds and textures.
Current version of DTX2 for Descent 2: V1.02 - 02/21/1997 (308 kB) Current version of DTX for Descent 1: V1.00 - 08/02/1995 (227 kB) Explore Version Archive Send eMail to author: Stefan Nilsson Go to official homepage

GX-Edit - Win16 UI program Ship attributes editor for Descent 2.
Current version: V1.0b - 09/30/1997 (70 kB) Explore Version Archive Send eMail to author: Micah Jon Lieske Go to official homepage

HAMM - Available as Win16 UI and Win32 UI program HOG manager with briefing editor for Descent 1/2.
Current version for Windows 9x/NT: V2.2 - 05/02/1997 (1659 kB) Current version for Windows 3.x: V1.12 - 02/20/1996 (437 kB) Advanced help file for all HAMM versions (118 kB) Explore Version Archive Send eMail to author: Micah Jon Lieske Go to official homepage

HAXMEDIT32 - Descent Manager Win32 UI module, also available as DOS UI module Edit HAM/HXM file.
Go to Descent Manager HAXMEDIT32 homepage for more information and download Go to Descent Manager HAXMEDIT/DOS homepage for more information and download Go to Descent Manager ROBOT CONSTRUCTION KIT homepage

Hoggle - Win16 UI program HOG manager with basic author informations for Descent 1/2.
Current version: V1.3 - 02/20/1998 (70 kB) Explore Version Archive Send eMail to author: Micah Jon Lieske Go to official homepage

HXMEdit - DOS UI program Robot attribute editor for Descent 2.
Current version: V1.0b - 05/02/1997 (102 kB) Explore Version Archive Send eMail to author: John M. Aldrich

MIDI2HMP - DOS console application Tool to create HMP/Q files out of MIDI files for Descent 1/2.

Download current version (34 kB) How to use (important information) Go to official homepage

PMView - Win32 UI program Polymodel viewer for Descent 2.
Download current version: V2.7 - 06/18/1998 (84 kB) Explore Version Archive Send eMail to author: Garry Knudson Go to official homepage

POLVIEW32 - Descent Manager Win32 UI module Align Descent 2 polygon models' textures.
Go to Descent Manager POLVIEW32 homepage for more information and download Go to Descent Manager ROBOT CONSTRUCTION KIT homepage

POLYTRON32 - Descent Manager Win32 UI module Create and edit Descent 2 polygon models.
Go to Descent Manager POLYTRON32 homepage for more information and download Go to Descent Manager ROBOT CONSTRUCTION KIT homepage

RBotEdit - Win32 UI program Visual Robot attribute editor for Descent 2.
Download current version: V1.3 - 06/16/1998 (143 kB) Explore Version Archive Send eMail to author: Garry Knudson Go to official homepage

TXT2TXB/TXB2TXT - DOS console application Tools to encode and decode TXB briefing files for Descent 1/2.

Download current version (24 kB) Go to official homepage

Yahoma - Win32 UI program HOG manager with basic author informations for Descent 1/2.
Download current version: V2.0 - 11/19/1997 (303 kB) Explore Version Archive Send eMail to author: Ben Damm Go to official homepage