D&D3/D20 System

The D20 System is the core engine for Dungeons And Dragons 3rd edition, probably the best known Role Playing Game. Converting from D20 is the most common conversion in the GURPS community.

D&D 3.5 to GURPS 4th Edition Conversion (webpage)
Dungeons And Dragons Monsters

The Dark Eye (TDE) / Das Schwarze Auge (DSA) / Myranor

Quite a few German people love the world of Aventuria and Myranor, but think that using GURPS rules would make for a better playability.

TDE/DSA is getting it's own Wiki, located at http://www.gurpswiki.net/default.aspx/Tde4Wiki/

Earthdawn

This conversion has been done in order to make this fantastic setting more playable (e.g. without having to roll a different bag of dice for every decision). The original ruleset is the property of Living Room Games (http://earthdawn.lrgames.com/) and Red Brick Ltd. (http://www.earthdawn-classic.com/).

Earthdawn

Exalted

Conversion notes for White Wolf's Exalted game line.

Exalted

Heroes Unlimited

A conversion of Kevin Siembieda's revised edition of Heroes Unlimited, originally published by Palladium Books. The 2nd edition of Heroes Unlimited is now available (http://www.palladiumbooks.com).

Heroes Unlimited

Lodland

A new german roleplaying game, set somewhere in the 23rd century. The attempt to stop the global warming has created a new ice age all around the world. Humanity was forced to settle the last habitable place on earth, the Ocean.

Lodland

Star Trek

Many attempts have been made to represent the Star Trek universe in RPG terms. This is yet another, this time for GURPS 4th Edition.

Star Trek

Other Star Trek RPG's to GURPS 4e

Prime Directive

GURPS Prime Directive is a line of Powered By GURPS supplements published by Amarillo Design Bureau. You can find out more about this adaptation of the Star Fleet Universe by visiting their web site at http://www.starfleetgames.com/prime/.

Star Wars

This is an extensive conversion of the epic battle between good and evil, a product of Lucas Film LTD. With painstaking work done by those in the SJ Games forums.

Star Wars

GURPS World War II

Conversions so that you can now play World War II with GURPS 4th edition!

Comparison of RPG Systems

The main purpose of this document is to provide tables based on statistical data, to convert characters and adventures from one RPG system to an other. The conversion values where determined by the analysis of success probabilities for different tasks in the given systems. http://www.tomshut.de/rpg/compare.html

To Do Fill this up! We could use the material from the Steve Jackson Games Forums - if anybody want to read through those old threads! This includes topics like converting the D&D magic system, how to convert levels to character points, etc.