Space is BIG
One common quirk of science-fiction roleplaying, whether it be Traveller, Star Trek, or Battletech is that the Universe starts to seem rather small. The characters jump from world to world having adventures but they only stay as long as the adventure lasts. Once the adventure is done, they’re back on their ship and off to another world, light-years distant. The routine of interstellar travel shrinks an impossibly vast universe into a travelogue. Alien worlds, might be strange, but they’re not memorable, the planet of purple-people-eaters fades into the background along with the forest moon of cannibal teddy bears, and the world of cheese.
Timekeeping
One way to keep space feeling big is to keep track of time as it passes. The Universe is not a static place, everything is always in motion. Seasons change, years pass, even the stars themselves grow old and die. It helps to reinforce that your characters are on a voyage if the Universe continues to unfold even as the players hop from system to system. In Traveller, each jump between systems takes a week. Normally this is expressed in downtime, but the important thing for timekeeping is, that as the characters jump from world to world weeks pass as they are isolated in jumpspace.
The Battletech Universe is different, jumps of 30 light years happen in an instant, but the drives require a week to recharge, and it takes days of sublight travel to reach the jump point where the drives can be engaged. Again, this is often considered downtime, but the time still passes.
Even Star Trek, where warp travel doesn’t isolate the ship or it’s crew, the distance between systems is *vast*. It takes days or weeks for a vessel, even traveling hundreds of times the speed of light to transition from one system to the next. As Game Master, take advantage of this, let events develop without the characters needing to be involved. Keep the Universe a dynamic, ever changing place.
Distance and Scale
It’s time for a little Astronomy. Get out your notebooks and calculators. As I am writing this essay, I have just flown across the North American Continent from Washington DC to Sacramento. That trip of 3,000 miles (4800 km) took all day (actually it also took all night, because of an unexpected layover in Phoenix, but that’s a whole different story). One Astronomical Unit (AU) is 150 million km. One Parallax Second (ParSec) is 3.26 light years. To put all of this in scale, for Dezzy to travel to work takes about an hour (I live 30 miles from the office) by car. For Dezzy to cross the country (the US) takes a day (six-ish hours) by jet. If Dezzy was to fly to Mars, it’s a journey of eight months. Flying out to Jupiter’s moon Europa takes around 6 years. If Dezzy wanted to send a message home at light speed, it would be more-or-less immediate from most places on Earth, 1.25 seconds to the moon, 15 minutes to Mars and 35 minutes to Europa.
Why am I throwing all these numbers at you? Well, it’s to illustrate a point. Like Douglas Adams famously said many years ago, “Space is big. You just won’t believe how vastly, hugely, mind-bogglingly big it is. I mean, you may think it’s a long way down the road to the chemist’s, but that’s just peanuts to space.” Traveling between worlds or star systems shouldn’t feel like driving to the next town over or even flying across country. In-system travel should take at least days, if not weeks unless the vessel is moving at 75% of C (light speed) or more. The point of emphasizing distance is to impart the vastness of space to the players.
Because of the enormous distances involved, the setting needs to feel different based on scale. This can be accomplished not only with travel times, but with communication lag.
The Mail Must Go Through
On a planetary/ moon scale, real time communications is fairly straightforward. We experience it today in our decidedly non-science-fiction real world voice and video calls can be made in real time anywhere on the planet where a signal can be reached. The slight delay to lunar orbit can make conversation slow, and possibly awkward, but not impractical. Physical mail can be sent nearly anywhere in a mater of weeks, or even days or hours if extra resources are employed.
On an interplanetary scale, real-time communications are not really possible. Even between nearby planets (assuming both worlds are in their close orbits), electromagnetic communications still take between fifteen minutes to an hour to reach their destination. Conversations start to resemble e-mail or messaging, even with voice or video
Communication with the outer worlds takes hours or days. Relays are needed to even send an electromagnetic signal out that far that can deliver something as dense as voice or video communications. Settings at this scale begin to resemble the telegraph and rail eras of the 19th century. News travels over continental distances, but need to move between telegraph or railroad stations. If the recipient of the message is five days away from the closest station, then all news that recipient receives is at least five days old. Even if the setting is heavily populated, it is still possible and even preferable to present a tangible sense of isolation
On an interstellar scale, unless Faster Than Light travel and communication is employed, news travel at generational speeds. Its simply not possible to maintain a cohesive society at this scale. Without FTL travel, an interstellar setting is a planetary or interplanetary setting. To use an example from fiction, in the novel Three Body Problem (spoilers), the invading fleet from Alpha Centauri (rougly 4.3 light years) takes 300 years to journey to the Sol system. That’s using technology so far advanced beyond what humans have developed that it may as well be magic.
FTL Travel Changes Everything
Interstellar settings with Faster-Than-Light travel flips communications on it’s head. Even in settings where direct communications through subspace, or hyperspace relays are possible, it is often quicker to send a ship from place to place delivering messages. This can be physical media, where a mail ship drops off packages and mail to the starport, but it can also be electronic or digital media where the mail ship simply flies in-system and transmits their messages to their destinations.
This brings an Interstellar setting to resemble the world-spanning empires of the 16th to 19th centuries. Worlds take weeks or months to interact, large interstellar empires and megacorporations lay most of their authority on colonial governors or directors of local headquarters.
There is a brilliant map in Megatraveller that displays how news of Emperor Strephon’s assassination spread throughout the Third Imperium. The common communication routes were the Express Boats that could jump 4 parsecs in a week, which was the limiting factor for the spread of the event. There was a second communication route used by the Imperial government and the Navy that used Couriers that could jump 6 parsecs in a week. Using this map, the GM could see who knew about the assassination, when, and how they would react.
The map also illustrates how much distance the news had to travel. In the setting, Emperor Strephon was assassinated on the 132nd day of the Imperial Year 1116. That news took 200 days to reach Terra, on the rimward fringe of the Imperium. That was from Emergency jumps running a Pony Express route (delivering the mail through a relay of riders and fresh horses) at a pace of around 850 C. That shows that the Third Imperium is really, really vast.
Keep Real-Time Communication Exclusive
The Star Trek and Star Wars settings have tropes where conversations over enormous distances occur. Which works against the scope of the setting. The Enterprise is often shown as the “only ship in the Sector” that can respond to the inciting incident of the episode. The orders are delivered from StarFleet headquarters in a direct Subspace communication. Even though the Enterprise was thousands of light years distant Captain Kirk could have a video chat with the Admiralty, and receive updates while delivering progress reports. Lord Vader has video chats with Emperor Palpatine from the Phone Booth on board his Super Star Destroyer while the Emperor is at the heart of the Empire on Coruscant. This shrinks the universe to planetary scale. It’s no more inconvenient to phone HQ for info than it is to open a Zoom Call to Hong Kong from London.
Both settings retain their sense of scale by showing that these real-time communications as requiring equipment that demands resources that are unavailable to the average citizen. Vader is the Dark Lord of the Sith, he has the biggest and bestest, literally a “Super” Star Destroyer. The Enterprise is the Flagship of the Federation. Subspace and Hyperspace Communications are not available or even a component of adventure sized ships like the characters would be crew of. A small colony carving out a settlement may not have the resources to build such a communications array.
The Star Trek movie Into Darkness and Star Wars: Revenge of the Sith really undermines the scope of their settings (spoilers for both movies). In Into Darkness there’s a scene where “John Harrison” escapes capture on Earth by teleporting to the heart of the Klingon Empire. Using technology explained as “Transwarp Beaming” but it was effectively instant teleportation over hundreds of light years. The Enterprise follows at Warp and arrives close enough to threaten Harrison with a long-range bombardment in an indeterminate, but very short interval. This is a planetary scale event. The distances are just numbers because there is no appreciable time investment.
In your campaigns, if your adventures travel interstellar distance this casually, then alien worlds become little more than exotic cities that can be reached by tourists on vacation. The sense of wonder is erased.
Time is Relative
In settings where Near-Lightspeed and Faster than Light travel is a factor, characters can age faster or slower than the rest of the setting when traveling. This is another way to emphasize the distances involved.
When traveling at Near-Lightspeed, the subject of relativistic speeds age slower. Characters who regularly travel at these velocities start to subjectively move forward in time. They leave one world, travel for a week at relativistic speeds, and when they arrive at their destination, they have only aged a week, but the setting has gone through months of time. The GM needs to juggle three periods of time. The time from the origin passes quickly as the characters are in transit, the time on board ship seems to pass normally, and the time at the destination would be the distance travelled divided by the velocity of the vessel. This allows characters to experience vast spans of time over the course of their career while their physical life spans are unchanged.
At Faster than Light Travel, the relativistic equation starts to flip on it’s head. Especially in settings where Jump Drives crosses the distance instantly, but the vessel has to spend a period of time (usually a week) in hyperspace, or jump space. The characters age, but the setting doesn’t. This starts to age the characters faster than the universe around them.
In Warp-Drive settings, the ships spend travel time in a bubble of real space while the universe outside slows to a standstill. When the ship emerges, the crew, like a Jump Drive crew have aged the time they were at warp, but the universe has only aged a much smaller interval. It takes the Enterprise much, much less time to move through the galaxy at warp than light does.
This allows adventurers the possibility of outrunning the consequences of their actions (for a time). So long as the adventurers can travel faster than the news of what they did, they can arrive in a new system before anyone can know what they’ve done. Of course, the trap here is that the adventurers need to keep moving. At least until the consequence exhausts it’s urgency.
Setting Scale and Campaign Scope
It’s important to apply the scale of your setting to complement the scope of the campaign you wish to run. It is tempting, especially with a game like Traveller with it’s procedurally generated system for creating worlds to create sectors’ worth of star systems, worlds, and moons. It can be fun, dreaming up pocket empires, cities, starports and NPCs to populate them. However, unless you plan to run a series of campaigns over the course of years, developing anything beyond a subsector beforehand is mostly futile. The same goes for system detail. Unless an extended adventure takes place in a single system, most groups of adventurers will never explore any given place beyond the world where the adventure takes place, and even then, the adventurers often only encounter those locations described in the adventure itself.
Point being, unless the adventurers choose to visit a location, they won’t. You as the GM can encourage the adventurers to visit a location, but the ultimate decision is with the players. It’s the GM’s job to seed reasons for the players to want to visit the interesting locations that are designed. That being said, as GM you can present a campaign that happens in a single star system, with a plot similar to the Expanse. That type of campaign will resemble an Interplanetary Setting, with it’s distances and travel/ communication times. Everything outside of the campaign system doesn’t need any real detail. News can arrive as the GM chooses, but it is not anything that needs to be designed beforehand. Don’t make more work for yourself than you must.
There is a balance for a campaign that revolves around travel. For example, in a Battletech campaign where the characters make up a mercenary company, contracting their military service with planetary governments and empires for c-bills, interstellar travel is common. The Company fulfills a Contract on a world, gets paid, and then they’re off to the next contract on the next world. System Detail only needs to be relevant to the current contract, and possibly outlines of the next contracts on offer. This is more of an example of a Interstellar scope on an Interstellar scale. While the campaign may never visit more than a dozen worlds or so, you as the GM can make the setting seem big. That’s part of the appeal. The mercenaries aren’t stuck on just one world or in one system. The conflicts cover hundreds of systems and thousands of light years of distance. Part of the appeal of a campaign like this is adventuring in space.
Deep Space Exploration, like Star Trek is the ultimate expression of Campaign Scope and Setting Scale. Leaving the familiar stars behind to explore… (dare I say?) strange, new worlds. Here, the GM can use time dilation to illustrate how vast the universe is. Traveling from world to world, and revisiting some can show how much time passes on the worlds left behind. Friends who stayed on the outpost the adventurers visited at the beginning of the campaign, can have aged significantly by the time they return and the adventurers have only aged a couple of years. Campaigns out here are stories of isolation and self-sufficiency. Like the crew of a ship far beyond the boundaries of Empire, help is months or years away if it can be reached at all. News from home can be years old. I’d even go so far as to make FTL communication like subspace or hyperspace have significant delays. The goal for campaigns of this sort is, like the crew from Star Trek: Voyager, is to turn the characters’ starship into it’s own little world sailing through the stars.
West Marches, Distant Stars
A gaming group can adopt a setting to run a multiple-campaign game using science fiction. In this framework, GMs develop different areas in the setting, and multiple groups of players can experience adventures travelling between GMs and their areas. Coordination is key, understanding where each group of players are in time and space will inform what is occurring in the universe as it unfolds. Groups that encounter one another can exchange news and even crew. As a campaign like this matures, it becomes epic. Like a science-fiction franchise, the more campaigns that play becomes identifiable as unique expressions of the setting while remaining a part of the greater setting.
Conclusion
I’ve presented, a lot in this essay. Turns out, since space is big, discussing role-playing in a space setting starts to get big as well. All of this doesn’t need to be applied to any given rpg as a whole. Like all science fiction gaming, the freedom to pick and choose what works for you is a part of the fun.
Happy Star Trek Day
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