When I first created the concept of Twilight Galaxy for Alternity, I had envisioned mecha as being an important part of that campaign design, which I referred to as Footprints of Thunder. When I decided to scrap Twilight Galaxy and integrate the best parts into Arcanum of the Stars, the concept of mecha was one of the first things I chose.
Then the hard part reared its ugly head.
At the time, the D20 System was still brand new and there weren't any hard rules for including mecha as part of my Dragonstar campaign. I toyed with the idea of converting BattleTech, which had been the originally basis for mecha design in Twilight Galaxy. The design was clunky to say the least. Then came D20 modern and the DUNGEON Magazine mini-games, specifically Mecha Crusade. I really like the set of rules designed for the mini-game. It won't be too much work to convert the material in that mini-game to be compatible with the Dragonstar universe.
Another reference that will ultimately influence where mecha design goes for my Dragonstar campaign is the D20 Mecha Compendium created by Dream Pod 9. The mecha in the book were created using the D20 Mecha Rulebook published by Guardians of Order, Inc, which I still don't own. However, GOO has provided a D20 Mecha SRD for free on their website, so I might not have to buy the book right away (or at all).
Several other mecha sourcebooks and campaigns have come out since I decided upon a hybrid of Mecha Crusade and D20 Mecha Compendium as the "rough" basis for mecha in Arcanum of the Stars. There is Mongoose Publishing's Armageddon 2089: Total War, which I'm not as interested in as I use to be (it looks too complex for what I want). There is also still the idea of converting BattleTech material as I had originally planned for Twilight Galaxy. I bought the DragonMech campaign setting by Goodman Games published through Sword & Sorcery Studios but quickly became disenfranchised with it. It will not be a part of Arcanum of the Stars.
DarkStar Home Page (v.3.5 Dragonstar)
When I found this website I felt like I wanted to do back flips, I was so happy. Once I calmed down and went through the updated source material I realized that a lot more work would need to be done to update Dragonstar completely to the D&D v.3.5 rule set. However, the DarkStar Home Page gives me a solid base to start with. Plus, there is some very good additional Dragonstar material on the page as well.
Another great website is Neo's Datalink. Mark "Neo" Howe is a diehard Dragonstar fan and the owner and moderator of the Dragonstar D20 Yahoo Group. His fan-based work for Dragonstar is some of the best I've seen and has made my life way easier. His ship construction rules are a must read for any Dragonstar fan and his Book of Races has saved me from having to do conversions of the core Alternity races as well as giff and the core races from Star Frontiers.
Dragonstar D20 Yahoo Group
After FFG cancelled Dragonstar, Dragonstar fans had to create their own communities. The best of the best is DSD20. This yahoo group is 770+ members strong and is the hub of Dragonstar activity on the Web. If you have a rule or campaign question, someone here can likely answer it. Therefore, it would be stupid of me not to seek out the council of my peers in the creation of Arcanum of the Stars. For while I already have a lot of material, the whole point of revisiting AtoS is to create more material for the Dragonstar campaign setting, as well as updating my campaign to the v.3.5 rule set.
My Threads on EN World
I've created several threads related to Dragonstar here on EN World This includes not only my Realmsian Dragonstar story hour but also my Dragonstar monsters thread. There are others but I've only included the important ones below.
Arcanum of the Stars
• Knightfall's Arcanum of the Stars
• [Dragonstar] Arcanum of the Stars Creatures
• Realmsian Dragonstar
• d20 Modern and Dragonstar