Steve Jackson Games - Site Navigation
Home General Info Follow Us Search Illuminator Store Forums What's New Other Games Ogre GURPS Munchkin Our Games: Home

Go Back   Steve Jackson Games Forums > Roleplaying > Roleplaying in General

Reply
 
Thread Tools Display Modes
Old 05-18-2019, 09:47 PM   #1
Maximum7
 
Join Date: Apr 2017
Default Megastructures?

Iím looking for an idea for a megastructure in space for my RPG setting. Theyíve come up with Dyson spheres, Alderson Discs, Niven Rings, Globus Cassus, Shellworlds etc. Iím looking for an idea for a megastructure that is unique. I canít think of one. Maybe theyíve all been speculated already. Does anybody have any ideas?
Maximum7 is offline   Reply With Quote
Old 05-18-2019, 10:15 PM   #2
ericthered
Hero of Democracy
 
ericthered's Avatar
 
Join Date: Mar 2012
Location: far from the ocean
Default Re: Megastructures?

Digging through Issac Arthur's Youtube Channel is probably a good idea. Specifically the megastructures playlist

There's an idea in there for stringing together rotating habitats in long ladder like structures: they spin independently, but the non-spinning cases are connected.

Spinning artificial planet-sized disks are surprisingly doable, and distinct from Alderson disks.

Dyson Spheres have a lot of variation. There is the dyson shell, the dyson swarm, and the dyson bubble. They look and behave very differently.
__________________
Worlds Beyond Earth -- my blog
ericthered is online now   Reply With Quote
Old 05-18-2019, 10:25 PM   #3
Pragmatic
Ceci n'est pas une tag.
 
Join Date: Jul 2005
Location: Vancouver, WA (Portland Metro)
Default Re: Megastructures?

The second Uplift trilogy had Fractal Worlds (where some of the Retired class lives). Basically, Dyson spheres with fractal geometries.
__________________
I'm a collector, not a gamer. =)
Pragmatic is offline   Reply With Quote
Old 05-19-2019, 03:44 AM   #4
William
 
William's Avatar
 
Join Date: Sep 2004
Location: Upper Peninsula of Michigan
Default Re: Megastructures?

"Unique" is really hard, given the number of people that have been speculating. But "new to your players" is probably doable! "Not often done in a fantasy setting" is also possible.

What do you want the megastructure to achieve? If it's just high-magic architecture that's huge, you're fairly unlimited in your choices.

The Counter-Orrery: To the circumference of this disc-shaped world, some unbelievably high-powered magical civilization has affixed an enormous ring of adamant and orichalcum, the creation of which alone would have required the plundering of multiple worlds of this size. The Counter-Orrery holds a cage which can be loaded with a city-sized patch of soil, ice, pitch and fuses, wood, or other material as needed. Driven by the fires of the Beneath and the Infinite Falls of the constantly-renewed world ocean drifting down into the void, this hoist can be raised above the world, putting the material into the desired position in the sky, where it modulates astrological influences on the fates of the people below.
William is offline   Reply With Quote
Old 05-19-2019, 06:36 AM   #5
Anaraxes
 
Join Date: Sep 2007
Default Re: Megastructures?

A topopolis hasn't been mentioned in the thread yet. You might have multiple distinct ones braided together in the same space, but not connected, perhaps for different environments or just for "redundancy" as an excuse to have separated cultures or peoples. Travel outside, between tubes, could be good for shortcuts compared to the usual inside paths for long distances, and so narratively function something like teleportation or ley-line / Nevernever / the "Ways", etc walking in fantasy stories.
Anaraxes is online now   Reply With Quote
Old 05-19-2019, 09:26 AM   #6
Fred Brackin
 
Join Date: Aug 2007
Default Re: Megastructures?

40 years ago, when I was in college (and doesn't that phrase cut like a knife?) My first campaign for FGU's Space Opera had a reverse-Dyson sphere.

It was a sphere the size of Earth's orbit but the Precursors lived on the outside so when the machinery failed they didn't all fall into the center of it. Making big streetlights on the outside were a lot simpler.

It was also built around a larger than Sol-szed black hole rather than a star. It was probably used for multiple sorts of Precursor-like exotic technologies.

It had been mostly wrecked in the last Precursor war but enough of the defense system still worked that ships over 273 tons one at a time were shot at with what were very big guns by modern standards. Very difficult to move in and take over for any government.
__________________
Fred Brackin
Fred Brackin is offline   Reply With Quote
Old 05-19-2019, 12:36 PM   #7
ak_aramis
 
ak_aramis's Avatar
 
Join Date: May 2010
Location: Alsea, OR
Default Re: Megastructures?

Quote:
Originally Posted by Fred Brackin View Post
40 years ago, when I was in college (and doesn't that phrase cut like a knife?) My first campaign for FGU's Space Opera had a reverse-Dyson sphere.
Space opera wasn't out 40 years ago; were you a playtester?. (It was published in 1980)
ak_aramis is offline   Reply With Quote
Old 05-19-2019, 01:29 PM   #8
Fred Brackin
 
Join Date: Aug 2007
Default Re: Megastructures?

Quote:
Originally Posted by ak_aramis View Post
Space opera wasn't out 40 years ago; were you a playtester?. (It was published in 1980)
Ah, an error of a few months. It's not quite 40 years since I started rpg-ing. That was in late October or early November of '79. The Space Opera campaign was probably spring or summer of '80 with a brand new box set.
__________________
Fred Brackin
Fred Brackin is offline   Reply With Quote
Reply

Tags
architecture, sci fi, science, technology

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Fnords are Off
[IMG] code is Off
HTML code is Off

Forum Jump


All times are GMT -6. The time now is 07:19 AM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2019, vBulletin Solutions, Inc.