44 Productions
- Online store offers Signature, an universal RPG as a PDF download.
- http://mysite.verizon.net/resq2tgs/

Wushu
- Universal role-playing game with martial arts and pulp era expansions.
- http://bayn.org/wushu/

Mythic Role-Playing
- Assists game masters in creating adventures without preparation. For use as a stand-alone role-playing game or as a supplement for other systems.
- http://www.mythic.wordpr.com

Shards of the Stone
- Detailed world setting with multiple realms divided by schisms of time. Rules available for FiveStat, Fuzion, and d20 conversions.
- http://www.shardsofthestone.com/

Necrotech's Universe of T.W.E.R.P.S.
- A space opera setting for The World's Easiest Role-Playing System, presented in English and German.
- http://www.twerps.de/