Material Robin (aka Roland) has written for various games (professional writing is on RobinFlanagan.pro). Mostly fan supplements, with the exception of the D.E.O. Memos which are outtakes from the published book. Some material is on other parts of the Silver-Gateway domain.

7th Sea

• Théan Wizardry

Babylon 5

• Nightwatch: An Unpublished RPG Supplement

DC Universe / D6 Legend

• Memos Censored by the D.E.O.
• Justice League: Avengers! (incomplete)

Exalted

• Denandsor A sketch for our version of the City of the Makers
• The Elemental Spells of Shining Phoenix Sentinel
• Pattern-Restoring Mandala (Spell)
• Matrix Spells
• Armies of Creation Trilogy (Spells)
• Exalted: the Inspired
• Heroic Gladiator Style (MA)
• Glorious Phoenix Style (MA)

MARVEL SAGA

• Squadron City (aka Other Earth 2) (incomplete)

Serenity

• Psychic Powers in the ‘Verse

Trinity (Aeon)

• Team Tomorrow

World Of Darkness (old/original)

• Aeon Covenant, a Scanners/Highlander Players’ Guide

Or, in case something did’nt get added to the list, anything with the Supplement tag.