The Culture: How Small Can A Space Adventure Setting Be?

There is one thing I adore Mobile Suit Gundam for, and that's for having a big Space Opera that is entirely confined to the Lunar Sphere.

Yes, by the time of Zeta there was talk of Jupiter and Mars and so on, but until you got to F91 and Victory the action was entirely within the Earth-Moon LaGrange system- and, primarily, between Earth and the Moon.

See that? There's your SWEEPING SPACE OPERA ADVENTURE SETTING. Massive fleets. Planetary invasions. Nobles and politicians and corporations all fucking each other and the common people over. That's not BattleTech- that's Gundam. This is most explicit when you read/watch Origin and Unicorn.

And yes, aside from Mekton Zeta and Jovian Chronicles, there is one other game that can handle this just fine.

You scoff. It can be done as-is, but someone bothered to work out the math to allow for stompy bois.

Try it for yourself using the free version.