Fantastic Space Travel

A campaign needn’t limit itself to relativistic speeds and time dilation. You can jump right into the “high adventure” side of space travel.
[h=5]FASTER-THAN-LIGHT (FTL) DRIVES[/h] Early in Progress Level 7, the development of artificial gravity technology spawns the induction engine, and scientists quickly learn to apply the technology to faster-than-light travel. The early “stardrives” are not truly capable of reaching light speed but offer a vast improvement over conventional engines. Humanity can finally reach distant stars in mere weeks, advancing space exploration and colonization, as well as reaching out to contact and trade with intelligent alien life.
Table: Faster-Than-Light (FTL) Drives shows the relativistic cruising speeds of various FTL engines.

[bar]Table: Faster-Than-Light (FTL) Engines[/bar]
[h=5]FANTASTIC TRAVEL TIMES[/h] Travel times at relativistic speeds are generally easy to calculate. Simply determine how long it takes to arrive at the destination while traveling at the speed of light, then divide the result by the light speed multiplier of the drive being used.

Some sample travel times appear in Table: Fantastic Travel Times.

The travel times listed are based on average distance. Planets move closer together and farther apart based on their relative orbits around the sun, and the travel time between worlds may increase or decrease accordingly.

[bar]Table: Fantastic Travel Times[/bar]
[h=5]TELEPORTATION[/h] The earliest teleportation devices move only simple substances, with uniform molecular structures. As the technology improves, teleporting more complex matter becomes possible. At Progress Level 8, living organic matter can pass more or less safely through teleporters. At Progress Level 9, the range of matter transference increases to cover galactic distances.
[h=4]Teleporters[/h] As with stardrives, multiple types of teleporters can exist, depending on the technology used to develop them.
[h=6]TRANSPORT BOOTH (PL 8)[/h] Based on original teleportation technology, a transport booth is simply a booth large enough to accommodate a single Medium-size creature or Huge object, with controls on the outside. An operator selects the destination booth (which is any other transport booth), waits for a clear signal from the destination, then transmits. Anything inside the booth is disassembled at the molecular level, translated into electronic data, and transmitted. The speed of the transmission depends on the communication technology used, but even with the least effective communications, any distance of less than 1,000 miles is virtually instantaneous.The purchase DC of a transport booth does not include the cost of the communication technology used to transmit the matter (see Table: Transport Booth Purchase DC Modifiers).
Purchase DC: 31 (per transport booth) + the communication system’s purchase DC modifier (see Table: Transport Booth Purchase DC Modifiers).
Restrictions: Licensed (+1)
[h=6]TRANSPORTAL (PL 8)[/h] The transportal is a contained teleportation field. Creatures step into it, and moments later they step out on the far side in a different location. The technology only allows transport from one transportal to another, though it is stable enough to remain open for several minutes with each activation and only requires about 30 minutes to recharge between activations. The only major drawback of the transportal is that it tends to disorient travelers. Any creature using a transportal must succeed on a Fortitude save (DC 15) or be shaken for 1d6 rounds upon arrival.
Purchase DC: 58 per transportal
Restrictions: Licensed (+1)
[h=6]TRANSPORT DISK (PL 9)[/h] The general technology of teleportation advances at Progress Level 9, to the point where a receiving station is no longer necessary. The traveler stands upon a disk on the floor, and the operator uses sensor technology to pinpoint the traveler’s target destination. Pinpointing the target destination requires a successful Navigate check, and the DC depends on the distance traveled (see Table: Check DCs for Transport Disks). Attempting to pinpoint the location without the aid of sensor technology imposes a –20 penalty on the Navigate check.
When the operator transmits, any creature or object standing on the transport disk is instantly sent to the location the operator has selected. If the operator’s Navigate check fails by 10 or less, the teleported creature or object appears in a location 1d100 miles from the intended destination (determined randomly). If the check fails by 11 or more, the teleported creature or object materializes inside solid matter at some location 1d100 miles from the intended destination. Any living creature teleported into solid matter takes 20d6 points of damage, or half damage if a Fortitude save (DC 20) succeeds. It must also be freed from whatever she has materialized inside of.
Although the chance of a botched transmission is daunting to some, transport disks offer a tremendous advantage. With a successful Computer Use check (see Table: Check DCs for Transport Disks), a transport disk operator can locate a particular creature or object with computer sensors and teleport it from its present location to the transport disk. The range is limited only by the range of the sensors.
Purchase DC: 52
Restrictions: Restricted (+2)

[bar]Table: Transport Booth Purchase DC Modifiers[/bar]


[bar]Table: Check DCs For Transport Disks[/bar]
[h=5]DIMENSIONAL TRAVEL[/h] Humankind has long been fascinated with the idea of parallel dimensions, the theory being that alongside our own universe lie virtually identical universes in which people just like us live out their lives (and perhaps fantasize about parallel dimensions). The popular notion is that in a parallel dimension, some different decision was made, some random event occurred differently, or that some element in the composition of the Earth is more common—and, as a result, the universe is different to some degree or another. What if Wellington lost the Battle of Waterloo? What if the cataclysm that wiped out the dinosaurs never happened? What if Hitler conquered the world?
Of course, it could all be considerably more subtle than all that; perhaps all humans have gray eyes, and that’s the only difference. The point is that in alternate realities, life could be different. Without ever leaving their home world, dimensional explorers could face challenges every bit as daunting as the challenges faced by space explorers.
[h=5]HAZARDS OF DIMENSIONAL TRAVEL[/h] Any initial exploration of parallel dimensions must logically proceed from a fixed location, because the amount of energy required would not allow for a portable power source. Thus, as with interstellar travel, early interdimensional trips are likely to be one-way. Fortunately, if a beachhead can be established in another dimension, it should be a simple matter for subsequent expeditions to transport the materials necessary for the construction of another power source. It is in establishing that beachhead that the real risk lies.
Initial dimensional journeys are unlikely to be carried out by humans, but rather by probes designed to test the gravity, radiation levels, atmosphere, pressure, and temperature—and to bring back samples of microorganisms—to ensure that humans can survive, and that they are properly equipped. Such probes must be tethered to the original dimension to send back information (since there is no indication that communication signals would travel back any more easily than objects could).
The use of probes, however, should allow dimensional physicists to develop a kind of “matrix map.” Not only can they note which dimensions are hostile to human life, but, with sufficient data points, they can extrapolate which dimension “frequencies” are likely to prove conducive to human life. The first human dimensional travelers are likely to be extremely well prepared for the environmental conditions they encounter.
Other factors may prove more hazardous, however. In addition to the perils of first contact with a xenophobic populace, dimension travelers must contend with the possibility of equipment failure, dimensional static, scale variance, and encounters with other travelers who might not be friendly.
[h=4]Equipment Failure[/h] As the science of dimensional travel advances, explorers carry portable dimension gate generators, enabling them to come and go through dimensions as they please. If that equipment fails for some reason, the expedition might be trapped, possibly without the means to repair the damaged generator.
Dimension gate generators—whether stationary or portable— should not break down at random any more than a starship does (unless, of course, the campaign revolves around that very problem).
Complete Shutdown: The generator simply stops working, either because its components are damaged or because it has run out of power. Fixing damage components usually requires 10 hours and a successful Repair check (DC 25), while constructing a new power source (a complex device) requires 60 hours and a successful Craft (electronic) check (DC 25). Locating a replacement power source in a civilized area may require a successful Gather Information check, and negotiating for it may require a Diplomacy check.
Miscalibration: A miscalibrated dimension gate generator doesn’t take the characters where they planned to go. Correctly recalibrating the generator involves either downloading the data from another functional generator (a full-round action followed by a successful DC 10 Computer Use check) or returning to the last “accurate coordinates” and resetting the matrix (12 hours of work followed by a successful DC 25 Computer Use check).
Communication Failure: There is no guarantee that standard communications work across dimensions; even communications designed to work across interstellar distances are useless when the party for whom the message is intended is not in the same dimension. A d-com (see Dimensional Communicators, below) or similar device enables communication across dimensions.
[h=4]Dimensional Static[/h] Dimensions are constantly splitting into new dimensions as events create alternate realities. These divergences release tremendous amounts of energy, which manifests as a kind of “static” during dimension gate operations. Generators are designed to filter out this noise and lock onto the specific “signal” of the intended destination. However, if the generator isn’t getting enough power, or if the static level is extremely high, the gateway between dimensions is less stable.
Traveling through an unstable gate is potentially fatal. The traveler must make a Fortitude save (DC 15). If the check succeeds, the character arrives at the intended destination but is stunned for 1d4 rounds. If the check fails, the character arrives on target but is nauseated for 1d4 hours. If the save fails by 5 or more, the character arrives on target, takes 2d6 points of Constitution damage, and is nauseated for 1d4 hours.
[h=4]Scale Varience[/h] A potential risk in traveling to other dimensions is a matter of size: Is everything in the other dimension on the same scale as the travelers who visit it? A scale variance can be simulated by changing a character’s effective size. For example, a Medium-size character might be considered Fine in the new dimension. Such a variance, of course, changes the character’s size modifier to attack rolls and Defense. Speed also changes, multiplied by a factor based on the change in size: Fine ×0.16, Diminutive ×0.33, Tiny ×0.5, Small ×0.66, Medium-size ×1, Large ×1.33, Huge ×2, Gargantuan ×2.66, Colossal ×3.33.
The damage a character deals with natural and artificial weapons also scales with size. For every step by which a character’s size category increases or decreases, increase or decrease the damage by one step: 1, 1d2, 1d3, 1d4, 1d6, 1d8, 2d6, 3d6, 4d6, 6d6, 8d6, 12d6. Attacks that deal 2d4 points of damage scale down to 1d6 or up to 2d6. Attacks that deal 1d10 points of damage scale down to 1d8 and up to 2d6. Attacks that deal 1d12 points of damage scale down to 1d8 and up to 3d6.
[h=4]Dimentional Opponents[/h] If humans are capable of traveling through dimensions, it is reasonable to believe that intelligent beings, either from other worlds or other dimensions, also have this capability. Other dimensional travelers might not be friendly. They might be raiders, plundering other dimensions for the resources they lack in their own. They could just as easily be transdimensional traffic police, tasked with detecting and disabling unauthorized dimension gate generators. They could simply be savage monsters, naturally capable of dimensional travel and drawn to unusual interdimensional activity.
[h=5]DIMENSION GATE GENERATORS[/h] The technology behind dimension gates is highly advanced. The first working gates are treated as late Progress Level 7 technology, and concerted human exploration of alternative dimensions begins at Progress Level 8. The calculations required for dimensional travel are complex, but the calculations for safe travel—arriving at the intended destination with no loss of carrier signal—are tens of thousands of times more complex.
Actually traveling through a dimension gate is easy, but changing the setting is more complex. A character must succeed on a Navigate check (DC 30) to reset the gate to a known destination; setting the gate to an unknown (but safe) destination is a DC 40 Navigate check. (These checks should be rolled secretly.) Performing either check requires 30 minutes of calibration. Of course, if the destinations have been preset, any character can change the settings as a move action without making a check.
Dimension gate generators come in a variety of forms, each operating somewhat differently.
[h=6]D-GATE GENERATOR (PL 7–9)[/h] The first dimension gate generators—appearing at Progress Level 7— are Gargantuan objects that cannot be transported once assembled. The PL 7 D-gate creates a transdimensional aperture approximately 10 feet in diameter and allows for one-way transport only. Due to the incredible power drain, the gate remains open for only 1 round, after which the generator shuts down and cannot be activated again for 24 hours.
The PL 8 D-gate is a Huge object weighing 200 pounds, but due to its bulk, the generator requires at least two people to lift and haul it. It creates a transdimensional aperture up to 20 feet in diameter, and the generator can keep the gate open for up to 10 rounds, after which the generator shuts down and cannot be activated again for 24 hours. Dimensional mapping makes calculations to reset the gate’s destination easier (Navigate check, DC 25), and any given gate can store up to five predetermined destinations. Travel is still one-way, but with the larger aperture and the destination presets, the equipment to construct another D-gate can be transported through, and the travelers’ home dimension can be locked into the new gate upon startup.
At PL 9, D-gates large enough to transport starships exist (although they can be almost any size), and they can store up to twenty predetermined destinations. The calculations are even easier (Navigate check, DC 20), and scientists have finally learned how to keep the gate open indefinitely. Best of all, dimensional travel through PL 9 D-gates is two-way, allowing for round trips.
Purchase DC: 54 (PL 7 D-gate generator), 48 (PL 8 D-gate generator), 46 (PL 9 D-gate generator)
Restrictions: Military (+3)
[h=6]D-DRIVE GENERATOR (PL 8–9)[/h] The D-drive generator can be incorporated into a starship’s engine design, allowing the ship to travel between dimensions. Considered the safest form of dimensional travel, D-drive generators allow ships in space to cross dimensions. Due to the enormous power drain, the Ddrive generator shuts down for 12 hours after the dimensional jump is completed. In addition, the starship’s weapon systems, defense fields, defense screens, and engines shut down for 2 hours. At Progress Level 8, only Colossal starships can be fitted with a D-drive generator. Progress Level 9 sees many improvements in the D-drive generator.
Any size starship can be equipped with one, and the generator can be reactivated after 6 hours; the ship’s disabled weapons, defense fields, defense screens, and engines come back online after only 10 minutes.
Purchase DC: 48 (PL 8 D-drive generator), 44 (PL 9 D-drive generator)
Restrictions: Military (+3)
[h=6]DIMENSION WAND (PL 8–9)[/h] The dimension wand is a personal dimension gate generator. It creates a rupture in the fabric of reality just large enough for one character to step through into another dimension. The gate remains open until the wand itself passes through, so multiple characters can step through without using their own wands. The drawback to the dimension wand is that it must be recalibrated after each use (see Equipment Failure, above), or entirely new dimensional coordinates must be entered, as though changing the settings. The PL 8 version of the dimension wand weighs only 1 pound. The PL 9 version has the same purchase DC, with the added benefit that it stores the last five dimensional coordinates automatically, enabling anyone to thumb through settings without recalibrating the wand.
Weight: 1 lb.
Purchase DC: 42
Restrictions: Restricted (+2)
[h=5]OTHER GEAR[/h] In addition to dimension generators, most dimensional travelers at Progress Level 8 and beyond carry dimensional transceivers, which
[h=6]DIMENSIONAL TRANSCEIVER (PL 8)[/h] A dimensional transceiver permits two-way communication across dimensions, although dimensional static can sometimes hinder or block communications. The somewhat bulky PL 8 transceiver can be carried like a backpack; a handheld version is available at PL 9.
A dimensional transceiver must be calibrated to transmit signals to a given dimension. Assuming the coordinates have already been plotted using some kind of dimension generator (see above), calibrating the transceiver takes a full-round action and requires a successful Computer Use check (DC 15), The PL 9 version can store the coordinates of up to five different dimensions.
Size: Medium (PL 8), Tiny (PL 9)
Weight: 4 lb. (PL 8), 1 lb. (PL 9)
Purchase DC: 24
Restrictions: Restricted (+2)
[h=5]TIME TRAVEL[/h] The dream of time travel probably arose out of a desire to go back and correct one’s past mistakes—or to visit the future and subsequently return to take advantage of foreknowledge. The concept intrigues historians and archaeologists for obvious reasons. Science fiction has explored the possibility of time travel many times, as well as the pitfalls of visiting the past and impacting the future.
Technically, time travel—of the “into the future” sort—is within the realm of possibility. In fact, it happens all the time—just on such a small scale that no one notices. Given that a starship engine could be developed that accelerates a ship to relativistic speeds at which time dilation occurs, time travel can be achieved simply by achieving 90% of the speed of light for a short time, then returning to one’s point of origin. For every minute you spend flying at 90% the speed of light, 2.3 minutes pass everywhere else. Travel at relativistic speeds long enough and you could return to a time predating the rise of human civilization!
Traveling into the future isn’t a very useful ability if one has no way back—which is where the concept of traveling into the past breaks down. The principle of causality rather logically argues that an effect cannot occur before its cause—meaning, in this case, that one cannot arrive in the past via the use of a time machine before that time machine is invented.
[h=5]HAZARDS OF TIME TRAVEL[/h] The time machine is perhaps more dangerous than any other technology that manipulates space and time. Not only can unscrupulous people use it to wreak havoc in the past and take advantage of knowledge from the future, but a single misstep could forever alter the course of history.
[h=4]TEMPORAL PARADOXES[/h] Trips through time are exercises in causality. Traveling into the past might set in motion a chain of actions culminating in different major historical events. Characters might return to the present to discover that the Roman emperor Caligula used intercontinental ballistic missiles to conquer Europe and the Middle East. Conceivably, history could be altered in a way that prompts the Soviet Union to invade and conquer North America. Perhaps the characters can’t even return to their own time because the person who invented the crucial component of the time machine was never born, for some reason. In short, the permutations of cause and effect can be infinitely mind-boggling.
Temporal paradoxes are liable to stall the development of time travel until someone can prove either that (a) actions in the past by people from the present have, in fact, already happened (and that it was those actions that led to the current state of affairs), or (b) actions in the past that affect the present can be detected and averted by sending someone else into the past to prevent those actions from happening.
[h=4]ALTERNATE REALITIES[/h] Another potential side-effect of time travel popularized in literature is the alternate reality. The timestream in which time travel is invented continues to exist. Situations that create significant changes or temporal paradoxes serves as the locus or intersection point where realities diverge.
The time travelers might encounter worlds very similar to or different from their own. This creates a rich diversity of settings where the established “facts” and “rules” are no longer sure. The nefarious villain recently defeated in a different reality might be a trustworthy ally in this one. A temporal adventurer might encounter a dead companion who did not die in this alternate reality. The possible permutations are infinite.
[h=4]EVER-CHANGING LANDSCAPES[/h] Time machines that do not actually move are at the mercy of topographical changes and other changes in the locations in which they appear. Never mind that one couldn’t construct a time machine in New Mexico and use it to visit Jerusalem in the year A.D. 33. Traveling into the past might deposit you in the middle of a rushing river or under thousands of tons of glacial ice. Traveling into the future, you might find that the position occupied by your time machine now resides in the basement of a futuristic skyscraper or in the middle of a radioactive wasteland covered by ice—the result of an extraordinarily heavy and sustained nuclear bombardment.
[h=4]LANGUAGE[/h] Modern language is loaded with slang, jargon, and colloquialisms that would mean nothing to people who lived in the 19th century. Their slang, jargon, and colloquialisms, by the same token, would mean nothing to those who lived in the 18th century. Go back another thousand years, and the words you are reading right now would be all but incomprehensible to the average English- speaking person—assuming he or she could read. Your speech would be equally incomprehensible. Go forward a thousand years, and the English of the new millennium will barely resemble the English of this millennium. Without a Speak Language or Read/Write Language skill for the appropriate era, communication could more closely resemble a game of charades.
[h=4]AGE[/h] Those who travel in time age normally within their own localized time. So, while eons may pass in the eye blink it takes to travel through them, the time traveler feels none of the effects of aging. However, this can work against the traveler. If he were to spend twenty years in his own timeframe exploring the centuries, then return to his starting point, he would, in fact, be twenty years older than he was when he left.
[h=5]TIME MACHINES[/h] Temporal displacement drives—colloquially known as “time machines”—do not exist until Progress Level 8. The first time machines are faintly reminiscent of the brass, ivory, and quartz machine invented by H.G. Wells in his novel The Time Machine, though made of lightweight aluminum and resembling something more like bathyspheres. Those that follow are constructed as fixed tunnels leading to nowhere, while those mounted in starships turn the entire ship into the time machine.
[h=6]TIME SPHERE (PL 8)[/h] Time spheres are small, two-seated modules designed to withstand any reasonable amount of buffeting that might occur when the machine finally comes to rest in a different time period. At the very least, the self-contained atmosphere should give the occupants time to “reverse course” should they discover that conditions outside are too hostile to disembark. The time sphere carries sensors designed to test outside conditions immediately upon arrival.
The temporal displacement mechanism itself is arranged around the inside of the sphere, giving the occupants full access to the electronics in case of emergency. The main computer has all programs necessary to operate the machine and is crammed with historical and linguistic information, electronic encyclopedias, and any other information that might be necessary to survive in a different time. Operation of the time sphere is quite simple for characters familiar with computers. One simply sets the desired date and time and presses the “Go” button.
Time spheres are not sold commercially. In fact, doing so is illegal, but the plans to construct them are quite common. The components have a total purchase DC of 36. Building a time sphere chassis takes 12 hours and requires a successful Craft (mechanical) skill check (DC 25). Building and filling the time sphere’s computer (a much more daunting exercise) takes 120 hours and requires a successful Craft (electronic) check (DC 35).
Time spheres have the following statistics:
Crew: 2;Passengers: 0;Cargo: 120 lb.;Defense: 6;Hardness: 5;Hit Points: 24;Size: Huge;Purchase DC: 65;Restriction: Illegal (+4)
[h=6]TEMPORAL DRIVE GENERATOR (PL 9)[/h] Like the D-drive generator, which is designed to carry starships across dimensional boundaries, the temporal drive generator (or “T-drive generator”) carries starships through time. The drive can be mounted in a starship of any size and turns the entire ship into a time machine.
Purchase DC: 60
Restrictions: Military (+3)
[h=6]TIME BRIDGE (PL 9)[/h] Doing away with the issue of portability, the time bridge opens a portal to both other times and other places. The time bridge also has the advantage of not leaving a fragile piece of vital equipment lying about while its operators go exploring. Instead, the travelers use a simple “message-drop” system to communicate with their base of operations: Upon arrival, they conceal a small transmitter somewhere near their point of embarkation. They then have a prearranged amount of time to explore and return to the location to catch the next appearance of the time bridge. If they do not return, an operative from their base emerges to search for the transmitter.
Assuming he finds it, the operative records a message on the transmitter, letting the explorers know when the bridge will reappear again, or he collects any recorded message the explorers might have left indicating where and when to pick them up. The process repeats until the explorers are brought back safely.
Travel through the time bridge is comparable to walking through a tunnel. Operators at the base set the temporal and physical coordinates at the other end, and a team of travelers walks into the tunnel and seems to vanish. For the travelers, the point of origin simply becomes less “real” as the destination becomes more real. The bridge is large enough to accommodate vehicles up to Huge size.
Purchase DC: 71
Restrictions: Illegal (+4)