Anyway, back to making Traveller more popular.
Address the setting issue.
Make Charted Space the default setting, and rework it to address the problems, inconsistencies, and contradictions in it. Make it consistent, plausible, and logical. Jettison the idea that the Imperium rules the space between the stars and that members worlds are independent as long as they obey nebulous Imperial law. The Imperium isn't a commonwealth or an association, it's an empire, and empires don't work like that. The rich and powerful want more riches and power (don't we all). Be explicit that the Imperial feudal lord in charge of a planet is responsible for maintaining order and keeping trade and taxes flowing, but other than that, planetary governments are
allowed local autonomy. If people say well that's not Traveller, say Mongoose is the sole owner of Traveller now, and has the power to say what's Traveller and what's not. Even that doesn't matter since we all do whatever we want in our own TU's anyway.
Keep all the create your own setting tools, keep all of them for people who want to use them. Make them robust and available for people who want to use them to change or add to the Charted Space setting. They're not only for people who want to create a whole new setting. And also rework them. Adjust them to minimize results like TL1 people on hellworlds, and TL15 worlds with tiny populations, like 5 guys crouched around a TL15 keg. That or change the definition of TL to include the meaning of a world only having high TL installations or facilities, not only a world with TL 15 production facilities.
Figure out how jump drive works, and why it uses all that hydrogen. That was only written in to Traveller to create frontiers and limit the range of FTL travel, it never had a reason. And don't use that specious idea that the hydrogen is squirted out around the ship to protect it while it's in jump space either. Then it's not fuel at all. I don't mean a hard science explanation, and I mean something just plausible enough to answer the question, like the jump drive through the magic of handwavium converts all that hydrogen to energy almost instantly to create the burst of energy necessary to shift the ship into jumpspace or something. It doesn't have to be hard.
And for the love of Charted Space, figure out Vilani culture. Go with descriptions of the Vilani in MgT2e and the other editions of Traveller, then hire a cultural or four-field anthropologist to create a coherent culture out of all the snippets and comments about Vilani culture over all the editions of Traveller. If I can draw a conclusion from identifying all the comments in a book to quibble on this forum, then surely it's possible. IMO Mongoose should have an anthropologist advise for all of Traveller's races and nations (Chanestin, Sylean, etc. etc.). Give the Vilani their rightful place as the majority population in the 3rd Imperium. Make language and culture matter.
In the supplements about the regions of Charted Space, like the Solomani and so on, put in tailored customized character generation tables for those peoples or races, like the CT Alien modules. The CRB character generation will serve as a foundation with an Imperial focus, and the regional supplements should provide tailored character generation for the people in those regions. Make a real book for the Solomani, like a book about the Solomani Confederation, not just a book about the Solomani Rim. We're getting books for the Aslan, and we need them for the major empires in the Vargr Extents.
And I did a slight bit of research on reddit about why people don't like the 3rd Imperium as a setting. The primary issue was that these people would rather create their own settings. Fine, Traveller has the tools to let them do that.
The other complaint was that the 3rd Imperium was too stable, and that the highly independent nobles and so on would revolt and there would be civil wars, and so on.
The 3rd Imperium has had a ruinous civil war and plenty of related strife, and a devastating revolt in the form of the Solomani Rim War, but the main reason that the 3rd Imperium is as stable as it is, is because it does not depend on its vassal nobles for its military forces,
and it never has.
That's the big difference. Once the central authority directly controls a military that is powerful enough to utterly smash any one vassal or provincial governor, revolts tend to quiet right down. As I discussed in a post some time ago, there aren't revolts and civil wars because the Imperial nobles who control worlds are not those who control fleets, and the sector fleets are paid by and loyal to the Emperor alone, not the sector dukes. The military forces of a subsector duke or even a sector duke are completely overmatched by the forces directly controlled by the Emperor. People just see words like "nobles" or "feudal" and decide that there should be revolts and civil wars and so on like the middle ages, and don't think through anything else. I wonder if the people with this complaint would feel the same if the words were subsector governor and sector governor instead of "duke" which is just the evolution of the Latin dux, which means military commander.
Another complaint was that monarchy in a sci fi setting doesn't make sense. Well, tell that to Kim Jong Un. North Korea has been a monarchy since the first Kim in 1947, the Eternal President. Monarchy is one of the most natural forms of government, and some kind of feudalism (the central authority assigns a person to manage an asset and in return that person is allowed to profit from it to some extent) is a very effective system for a sci fi setting with long communication and travel times. Monarchy has been humanity's primary form of government for thousands of years. In a sci fi setting with long communication and travel times, monarchy is a stabilizing force. Instead of requiring all the provincial governors and powerful military commanders to travel for months to get to the capitol where they can do all the politicking they need to do to choose a new ruler, with a monarchy, especially an absolute monarchy, the process of choosing a new ruler is stabilized into simply accepting the child or official heir of the previous ruler. No one has to travel, all that has to happen is for the representatives of the provincial governors at court to send a message to their provincial governors saying, "The king is dead, succession is legitimate, long live the king."
The last complaint was that the 3rd Imperium was stale and boring. I can't fault them for this one. The role of nobles was vague and poorly explained (they didn't really seem to do much of anything, there weren't supposed to involve themselves in the worlds they were assigned to, etc.), the space between the stars doctrine made the Imperium so remote as to be nonexistent, the cultures of the Imperial were vague or completely undefined, and really, it was stale and boring. Despite the decades I've been playing Traveller, I felt the same way. I always had to reimagine it, IMTU it, and do what I had to do to make the the star of the Charted Space setting shine. The most enthusiastic I've felt about the 3rd Imperium is when I wrote the Dark Imperium thread.
https://forum.mongoosepublishing.com/threads/thoughts-on-the-dark-imperium.125481/
https://forum.mongoosepublishing.co...uture-of-traveller.123226/page-43#post-993236
Granted, the current Third Imperium book did a lot to alleviate this issue, but there still needs to much more done. And somebody called out Astroburgers and Brubek's as what caused their opinion of the 3rd Imperium to hit rock bottom.
Hire a couple of serious historians and anthropologists to sort all this out and make it logical.