GDSWare
geocities.com
Features WhosNext, an utility which is intended to help running combats with rolling for inititive and keeping track of damage for multiple characters.
Dices - Online Role Game Playing Software
dices.sourceforge.net
Opensource Online role game playing software
Eposic
eposic.com
Free online JavaScript and Java online roleplaying tools including animated Tunnels and Trolls dice roller, random event, weather, GM decision, NPC rune generators, private dice rooms for online RPGs, gallery of downloadable images.
Tabletop Mapper
tabletopmapper.hpg.ig.com.br
A Dungeon Master tools which helps to control character positions and actions on a map by hiding areas players can't see.
Garthac Games
garthac.com
Creates products that support and enhance role playing games. MageHand is a tool for creating, modifying, organizing, sharing and printing campaign information.
Hamete.org's Virtual Dice Server
hamete.org
Generates online and by-e-mail dice rolls.
Role Playing DB.
deepsoft.com
A commercial roleplaying database manager for Linux and Windows.
Irony Games
irony.com
"On-web support for Roleplaying Gamers." A nearly exhaustive set of on-web software roleplaying tools, including the first on-web dice roller, PBeM server, and map editors, with links to tools they don't host. That's all free - they also have a bookstore.
DemonSpawn Software
demonspawn.net
An online organization devoted to providing gamers with resources and programs. MapMaker, FUDGE and T&T die rollers, all in Beta test (trial download), for PCs.
Battlegrounds Games
battlegroundsgames.com
"Battlegrounds: RPG Edition" is new virtual tabletop software that allows you to play any RPG online or offline. It's very easy to use, is cross-platform, and has useful features like Fog of War.
Vassilakos RPG Programs
cs.ucr.edu
Many downloadable RPG GM tools, including mappers, character and party generators, and attack generators. Most for AD&D, also Traveller, Top Secret. Compiled for MSDOS, many with QuickBasic code.
Konkret Dice Roller
norwinter.com
A modern implementation of an online dice roller. Features nearly instant throws, roll history and recall of previously defined rolls. Calculates World of Darkness successes in addition to sum, modified results and so on.
Dungeon Helper
dh.abomb.info
Play P&P over the internet with ease
The Roleplaying Assistant
rpgweb.com
Freeware tool featuring character generator (for D&D, Alternity, Star Wars, in Nomine Satanis), fractal world generator, dungeon mapper and spell management.
Random RPG Idea Generator
randomrpg.com
Provides game masters and players with random weapon, encounter, story, and trap ideas.
AnderWare Development
anderware.org
Features MasterPlan, a freeware scenario-planning utility for Windows.
kLoOge.Werks - The Digital Gaming Table
kloogeinc.com
A commercial Java tool which allows playing round based and map using game to be played with a computer.
DA: The Role Player's Digital Assistant
mjhkstudios.com
A system independent tool designed to help create, organize, and run tabletop roleplaying games. [Shareware|Windows NT/2000/XP]
The Adventurer's Diary
adventurer.worldofbelushi.de
A shareware Windows database application for keeping track of events and persons the player meets.
Fantasy Grounds
fantasygrounds.com
An application acting as a virtual online gaming table primarily intended for pen and paper style narrative role playing games.
TenFootWiki
unclebear.com
A self-contained wiki as a personal campaign notebook for roleplaying gamemasters.
Tidal Software - Dungeon Master Assistant
tidalcanada.com
Take a tour and download Dungeon Master Assistant, the complete campaign management utility.
The RPG-SoundMixer
rpgsoundmixer.com
A commercial program (Demo available) for Windows specifically designed for creating musical and acoustic backgrounds for roleplaying sessions. [English/German]