#TheExpanse #TheDrive in Orbital 2100 – #TravellerRPG & #CepheusEngine Mods

In a previous post, I discussed the role-playing game Orbital 2100 – A Solar System Setting Using the Cepheus Engine Game and how it could possibly be used for playing in The Expanse setting. In The Expanse, the Epstein Drive is the engine that powers spacecraft across the Solar System. But just how does the Epstein Drive perform, and how could it be portrayed in the Orbital: 2100 setting using Cepheus Engine?

When playing Traveller or today’s Cepheus Engine games like Orbital 2100, I tend to be (using Marc Miller’s definitions from T4) a “Detailed Role Player.” I stray into the “System Engineer” role at times, like for this post. Part of my intention here is to show RPG players and referees/GMs that “this isn’t rocket science” – between the setting, game rules, and the internet (and with the help of a spreadsheet/calculator) it is actually fairly easy to do this analysis.

Fortunately, we have a “canon” story that we can draw inspiration from. The novella The Drive (published in 2012 and available for free online) takes place 150 years before the events of the first novel in the series, Leviathan Wakes. The Drive tells the story of Solomon Epstein, the inventor of the Epstein Drive. It is a very short novella coming in at a mere seven pages. Those seven pages, however, give us plenty of information that can be used to derive the performance of the Epstein Drive.

“By the way, we’re accelerating at four gravities. Five. Six. Seven.”

“He wonders how much above seven he’s going. Since the sensors are pegged, he’ll have to figure it out when the run is over.” – p. 1

In the first pages of the novella, we find a common language between the novels and the Orbital 2100 setting. Like Cepheus Engine and the Traveller RPG it derives from, spacecraft performance is expressed in g’s of acceleration. One g (1g) of acceleration is 9.8 meters/second/second. [Cepheus Engine and Traveller round this to 10 m/s/s…but we will use the actual value for the purposes of this discussion] Seven g’s of acceleration works out to 68.6 m/s. Since Sol’s “sensors are pegged,” this passage also establishes an instrumentation limit of the time.

“The yacht is built for long burns, and he started with the ejection tanks at ninety percent. The readout now shows the burn at ten minutes. The fuel supply ticks down to eighty-nine point six. That can’t be right.

Two minutes later, it drops to point five. Two and a half minutes later, point four. That puts the burn at over thirty-seven hours and the final velocity at something just under five percent of c.” – p. 1

These passages help determine a fuel consumption rate.

  • Using the 90% full tank as a beginning, and given that after 10 minutes 89.6% remains, we see that .4% was consumed in that short time for an hourly consumption rate of 2.4%.
  • “Two minutes later,” or after 12 minutes of total burn, the tanks are 89.5% full; meaning that .5% has been consumed at a rate of 2.5% per hour.
  • Finally, after 2.5 minutes more – or 14.5 minutes total – the tanks are at 89.4% full, or .6% consumed for a rough consumption rate of 2.4% per hour.

Using the 2.4% rate, 90% divided by 2.4% gives us 37.5 hours of “burn” endurance – right in line with Solomon’s “over thirty-seven hours” statement.

The later passage helps compute the acceleration performance of the Epstein Drive.

  • The speed of light – c – is 299,792,458 m/s. Five percent (5%) of c is 14,989,623 m/s.
  • The formula for acceleration is a=v/t where a equals acceleration in m/s, v is velocity in m/s, and t is time in seconds.
  • Plugging in our numbers for velocity (5% of c) and time (37.5 hours or 135,000 seconds) we get an acceleration of 111.03424 m/s.
  • Dividing this by 9.8 m/s, we get 11.33g acceleration.

Eleven g’s of acceleration is quite a lot, even for Cepheus Engine/Traveller where a top-grade maneuver drive is no more than 6g performance!

“Only the acceleration isn’t the problem either. Ships have had the power to burn at fifteen or even twenty g since the early chemical rockets. The power is always there. It’s the efficiency necessary to maintain a burn that was missing. Thrust to weight when most of your weight is propellant to give you thrust. And bodies can accelerate at over twenty g for a fraction of a second. It’s the sustain that’s killing him. It’s going for hours.” – p.3

NASA and the military conducted many experiments in the 1950’s and 1960’s that established a 20g human limit to acceleration. Sol is obviously in pain, but in terms of Cepheus Engine and Orbital: 2100, just how much damage is he taking?

There are no specific rules in Orbital 2100 for acceleration effects on characters. Looking at “Falling and Gravity “in Cepheus Engine (p. 164), we see that on a 1g world, the character will get 1d6 damage per 2m of fall. The rules further specify that for higher g worlds, multiple the 1d6 by the planet’s gravity number. The Epstein Drive accelerates at 11g, which we can compute as 11d6 damage. The question is the time period in which this damage takes place. Falling is assumed to be instantaneous, but declaring 11d6 damage per combat round (6 seconds) does not seem to fit the events of The Drive. This seems excessive because an average character in Orbital 2100 (7 Strength/7 Dexterity/ 7 Endurance) only has 21 damage points until death. The “average” damage from 11d6 is 44, meaning the character is dead twice over!

Perhaps we should assume the 11d6 damage takes place every space combat round  (1,000 seconds/16.6 minutes) instead. This better reflects the painful, but non-instantaneous death like Solomon Epstein experiences. It still seems like an excessive amount of damage, guaranteeing character death.

Looking around for a solution, and not finding one in the rules, I suggest a “house rule” that acceleration couches absorb some of the damaging g forces. In This New Ocean: A History of Project Mercury, acceleration couches in the Mercury spacecraft were designed to absorb 9g (assumed to be the maximum g at reentry). If we use couches to absorb 9 of 11g, the character will have only 2g of damage (2d6) per space combat round. This means an average human may  last as long as three space combat rounds, or about 48 minutes, before sub-coming to the strangling g forces.

“Even as he struggles to make the terminal respond, he’s also thinking what the drive means practically. With efficiency like this, ships can be under thrust all through a voyage. Acceleration thrust to the halfway point, then cut the engines, flip, and decelerate the rest of the trip. Even a relatively gentle one third g will mean not only getting wherever they are headed much faster, but there won’t be any of the problems of long-term weightlessness. He tries to figure how long the transit to Earth will take, but he can’t.” – p.5

Ah, here we can use the classic formula for interplanetary travel time where a ship constantly accelerates to a midpoint, flips over, and then decelerates at a constant rate to the destination. The formula is t=2*SQRT(d/a) where like before = time in seconds, = distance in meters, and = acceleration in m/s/s. (see Cepheus Engine, p. 104)

Unlike Solomon, we do not have 11g’s of force crushing down upon us, so we can solve for the time it would take an Epstein Drive spacecraft to travel from Mars to Earth.

To figure distance, one must first realize that both Mars and Earth orbit the sun differently and the distance between the two planets is not constant. At opposition, the two can be as close as 56 million kilometers (Mkm); however, at conjunction the two can be as far as 401 Mkm apart!. On average, Mars and Earth are 225 Mkm apart.

[Interestingly, in Cepheus Engine, Chapter 6: Off World Travel, Interplanetary Travel, Table: Common Travel Times by Acceleration, there is a listing for “Far Neighbor” with a distance of 255 million km. This is close enough to the Earth-Mars average distance that I think it was the source for the entry. Orbital 2100, Chapter 6: Operating Spacecraft, Travel Times, Travel Between Inner Planets, uses a different process to determine distance (p. 71). In Orbital 2100 you start with the Basic Distance of 80 Mkm (Inner Planets: Basic Distance Table) PLUS seven squares of travel on the Travel Between Inner Planets chart (using the recommended starting setup). This works out to a total travel distance of 290 Mkm – within reason but a bit above the average.]

For the purposes of this example, lets use the 225 Mkm average. Using that average distance (225 Mkm), and Sol’s stated  1/3g (3.27 m/s acceleration), the formula gives us a travel time of Mars to Earth of just over 3 weeks. This may be a normal pre-Epstein Drive trip, given the 3.27g falls within the previously noted 7g instrument limit.

“The United Nations ordered that all shipyards on Mars shut down until an inspection team could be sent out there. Seven months to get the team together, and almost six months in transit because of the relative distances of the two planets in their orbits around the sun.” – p. 6

From this passage we can assume that Sol is telling us that the average transit time between Earth and Mars is about six months. The is an important figure to remember for later.

“And the war! If distance is measured in time, Mars just got very, very close to Earth while Earth is still very distant from Mars. That kind of asymmetry changes everything.” – p. 7

Once again, lets assume the Earth to Mars distance d to be 225 Mkm. Using the Epstein Drive with an acceleration of 11g ( a=111.03424 m/s) and solving for time t gets 12.5 hours. This is a major difference from the six months Sol was thinking about earlier. It is orders of magnitude better performance!

Think for a moment about Jupiter like Sol does. Assuming the Earth-to-Jupiter average distance is 588 Mkm, using the Epstein Drive the trip would take 1 day and 16 hours!

In Orbital 2100, the best TL 9 Nuclear Thermal Rocket (NTR, p. 41) can only travel a maximum of 330 Mkm per month, meaning it takes 1 month and 23 days to make the Earth to Jupiter transit. Even the best alternative TL 10 Fusion Drive, or Nuclear Pulse Fusion (NPF, p. 61), has an acceleration performance of 12 m/s for a travel time of 5 days and 21 hours. Even the best performing Maneuver Drive in Cepheus Engine (6g or 60 m/s acceleration – p. 122), takes 2 days and 7 hours to make the same trip.

Unfortunately, as much as we can learn from The Drive about Epstein Drive performance, the novella lacks other details like the size of the drive or the volume of fuel required. This means we will have to look elsewhere for that information, like maybe Leviathan Wakes.

In summary, the Epstein Drive is very efficient compared to the NPR and NTR in the Orbital 2100 setting. Even compared to maneuver drives available in Cepheus Engine the Epstein Drive is superior. The major drawback, as Sol discovered, is the crushing gravity of acceleration. In the default Traveller setting, the Original Traveller Universe, this is overcome by using handwavium acceleration compensators. In The Expanse, 150 years after Sol’s invention, you have “the juice.”

The juice was a cocktail of drugs the pilot’s chair would inject into him to keep him conscious, alert, and hopefully stroke-free when his body weighed five hundred kilos. Holden had used the juice on multiple occasions in the navy, and coming down afterward was unpleasant. –Leviathan Wakes

Leviathan Wakes, Copyright (c) 2011 by Daniel Abraham and Ty Franck.

The Drive (A Novella for The Expanse), Copyright (c) 2012 by Daniel Abraham and Ty Franck.

Cepheus Engine: A Classic Era Science Fiction 2D6-Based Open Game System. Copyright (c) 2016 Samardan Press.

Orbital 2100 Second Edition, Copyright (c) 2016 Zozer Games.

“The Traveller game in all forms is owned by Far Future Enterprises. Copyright 1977-2016 Far Future Enterprises.”

#RPGThursday #Orbital2100 RPG #CepheusEngine Chargen

Using Orbital 2100: A Solar System Setting of the Cepheus Engine I ran thru a character generation example. As I talked about in a previous post, Orbital 2100 makes only minor changes to the standard Cepheus Engine character generation process.

Meet Vanov Page, idealistic young man born aboard LSC-1 Mattias Vanderveen in Earth orbit at L4.

STR 4 (DM-1) / DEX 9 (+1) / END 4 (DM-1) / INT 9 (DM+1) / EDU 3 (DM-1) / SOC 6

Background skills are as in Cepheus Engine (3+ EDU DM). However, one must be taken from the Orbital 2100 Background Skill table (p. 31). Vanov, coming from an Orbital Colony, gains Mechanics 0, as well as Computer 0.

Choosing a Mining and Colony Survival campaign, Vanov becomes a Surface Operator. The equivalent Cepheus Engine career is Colonist.

First Term: Survives. As Rank 0 gains Survival 1. Does not commission nor advance. Service Skills gained are Mechanics 0 (already possessed), Gun Combat 0, Animals 0, Electronics 0, Survival 0, and Vehicle 0. After an eventless first term, Vanov reenlists.

Second Term: Survives. This time Vanov commissions as an Officer (Rank 1 – District Leader) and gains the skill Jack-of-all-Trades! After gaining an additional service skill in Vehicles, he now has Vehicle (Ground ) 1. Vanov also successfully advanced this term (Rank 2 – District Delegate) and picks up Gun Combat, making his skill Gun Combat (Slug) 1. Riding high on his success, Vanov reenlists again.

Third Term: Survival roll is END 6+, and thanks to Vanov’s DM-1 he FAILS. Rolling on the Injury Table, we find Vanov was severely injured which reduces one physical characteristic by 1D6. Rolling a 5 (super ouch!) Vanov reduces his END from 9 to 4 with a new DM -1. Per Cepheus Engine, Vanov must now leave the service after an abbreviated term (2 years) and will get no benefit roll this term.

Mustering Out: Vanov gets two benefits rolls. He takes one on the Orbital 2100 Universal Benefits Table (p. 35) and gets +1 SOC. His cash benefit is 4,000Cr. Per the Orbital 2100 rules, this is reduced to 10% of the Cepheus value, or  400Cr.

At this point I review Cepheus Engine and look at the rules for Medical Care (p. 29). Restoration of a lost characteristic is 5,000Cr per point. Raising DEX to 6 (2 points) would cost 10,000Cr and void the DM -1. Rolling on the Table: Medical Bills (p. 30) results in “the company” covering 50% of the cost, but this leaves Vanov having to cover the other 5,000Cr. I figure this is a good character aspect; Vanov is in debt and therefore more likely to be “asked” to do provide “interesting” tidbits of information.

Vanov Page, Age 28, ex-Colonial District Delegate (Medically Retired, now available as a Contract Advisor). 400Cr.

STR 4 (DM-1) / DEX 6 / END 4 (DM -1) / INT 9 (DM +1) / EDU 3 (DM -1) / SOC 7

Animals 0, Computer 0, Electronics 0, Gun Combat (Slug) 1, Jack-of-all-Trades 1, Mechanics 1, Survival 1, Vehicle (Ground) 1.

Vanov Page was born in an Orbital Colony above Earth. Although the habitat has some gravity, Vanov is generally frail but very agile in the lower gravity. Raised not to look down but out to the other planets, Vanov decides to become a Surface Operator supporting mines and colonies. His first few years are taken by hard study where he learns the basics of his career. After a few years, Vanov begins to make his mark and quickly rises in rank to District Delegate. But then a great accident befalls him, and he is severely injured. At the depths of his physical misery, Vanov is approached by an old friend who offers to help pay for part of his medical bills in exchange for certain “favors” in the future. Grasping at the slim chance presented to him, Vanov agrees.

Medically retired from colonial government matters, Vanov Page hires himself out as a advisor for small start-up colonial and mining ventures. Vanov is secretly in debt to Tharsis Heavy Industry for “only” 5,000Cr – or so he thinks. He needs to pass along a few real “gems” of information if he ever is to get free of his obligation. The last time Vanov passed on info about a new outpost setting up, Tharsis was able to use the inside information to underbid their competitors and win the contract. Vanov then realized that Tharis planned on using “less-than-optimal” equipment and some of the staff sent were a bit iffy. Vanov wonders if his restored health is worth the risks he is taking….

#Orbital2100 RPG – Hard Sci-Fi RPG for The Expanse?

Orbital 2100: A Solar System Setting Using the Cepheus Game Engine by Paul Elliott at Zozer Games is the “second edition” of Orbital but now based on the Open Game Content Cepheus Engine System Reference Document vice the Mongoose Traveller first edition rules. Coming in at 239-pages, Orbital 2100 provides a more hard sci-fi setting within our Solar System around the year 2100. According to the publisher’s blurb:

Orbital is a science fiction setting for Traveller with a fairly realistic (TL 9) feel that is set within our own solar system. The Earth is locked in a Cold War with the people of Luna. Both face off, 400,000 km apart, threatening mutual annihilation whilst they compete to colonise the moons of Jupiter and Saturn. Older colonies such as Mars and Mercury are independent and caught up in this struggle for solar system supremacy. Spacecraft use nuclear thermal rockets and create gravity by spinning pods or centrifuges, this is spaceflight as envisaged today!

What I think Mr. Elliott really means to say, to avoid legal troubles, is that Orbital is a science fiction setting for the Cepheus Engine. Orbital 2100 attempts to update the original material that used the Mongoose Traveller first edition rules. No longer a legal option, to avoid intruding on Mongoose Traveller’s second edition Closed Gaming Content and Product Identity, Orbital 2100 is based on the Cepheus Engine.

With Cepheus Engine providing the game rules, Orbital 2100 focuses on the setting. The first three chapters; The Situation, The Cold War, and Organisations provide a great deal of background and sets the stage for player adventure.

Character Creation follows the Cepheus Engine which allows this small section to focus on the differences in chargen from Cepheus. For instance, a new definition of Social Standing is introduced as well as new Background Skills. At this point, players “select a campaign” of which there are five. Depending on the campaign selected, different careers are recommended. There are no new career paths presented in Orbital 2100; rather, equivalent careers are mapped to Cepheus Engine careers. Other changes include a slightly modified Skills Cascade list, unique Military & Spacer Ranks, and modified Mustering Out process. The later is an interesting wrinkle to long-time Traveller RPG players because Orbital 2100 does not use the “traditional” end chargen and start adventuring. Instead:

In a typical game, characters must muster out before the game begins. In Orbital, it is more likely that characters will still be in employment within their chosen career. Player’s may finish character generation at any desired point and have their characters join the game, although an aging crisis or some events may also indicate a character has left the character generation process and begun the game. Orbital 2100, p. 35

Being set in 2100, the governing tech is generally TL 9 (with TL 11 in computing and electronics). There is no anti-gravity or jump drive. Trips are limited to inside the solar system using Nuclear Thermal Rockets and spin habitats. The next chapter, Spacecraft Design, introduces three classes of spacecraft that follow these setting restrictions. Deep Space Vehicles (DSV) are analogous to “starships”(100 tons or larger)  in Cepheus whereas Orbital Vehicles are this settings “small craft” (under 100 tons). The added vehicle class is Launch Vehicles (100 tons or less using regular chemical rockets. (Orbital 2100, p. 37). Although Cepheus Engine provides rules for building up to 5000 tons, the Orbital 2100 limit is 2000 tons (p. 60). Orbital 2100 does introduce an alternative drive, the TL 10 Fusion Drive (or Nuclear Pulse Fusion Drive – NPF p. 61). This vastly more efficient drive can make ships more akin to those seen in the TV series The Expanse.

Operating Spacecraft generally follows the Cepheus Engine rules with the greatest exception being travel time within the Solar System. Without getting too scientific, Orbital 2100 uses an orbital racetrack for travel between the inner planets and easy tables to assist in computation of travel times (p. 71). Fuel is also treated much differently, being defined in terms of “Burns” (p. 73) Bottom Line – The Expanse “Flip and Burn” is rare in Orbital 2100. Maintenance is also treated differently, as well as trade revenue. Setting-specific Encounter tables and updated Space Combat rules also are found here (remember – Trajectory is King! – p. 77).

The next chapter, Hardware, properly focuses first on Space Suits. Rovers, Orbital 2100’s version of vehicles, area also here but no rules for their design/construction are presented (nor are they found in Cepheus Engine). Computers are also redefined, and a section of Orbital and Launch Vehicles given. These Launch Vehicles go beyond chemical rockets by adding items like a Mass Driver Catapult or other alternate launch systems. Background and stats for common DSVs are also presented, as well as modular space stations.

Orbital Society is more setting background looking at Law Enforcement, Art, Colonies and the like, background on life aboard a DSV, various Treaties and Regulations and the Earth Orbit Network. There are many adventure seeds buried within these pages!

Working in Space is the Orbital 2100 version of the Environments & Hazards section of Cepheus Engine. The most interesting part to me was “Ways to Die in Space.” There are also rules for Astroid Mining found here as well as a basic outline of how to set up an outpost.

Worlds breaks from the Cepheus Engine design system and instead presents the planets and moons of the Solar System in UWP format. The real gems are found in  the extensive flavor text. Again, lots of great adventure seeds are found here.

Running Orbital is in effect the Referee’s section. I found this section a bit weak. It starts out with four different campaign types, seemingly ignoring the fifth one found in the character generation “select a campaign” at the beginning of the book. This chapter also introduces Secret Agendas and Status, character concepts that I strongly believe should be included in the character generation chapter and not buried here (p. 218-221). The section ends with a look at Aliens (again, nice adventure seeds).

Resources is the Orbital 2100 version of Appendix N; the inspirations for the setting. Good movie or reading list material here, although I can’t believe Paul didn’t mention  Atomic Rockets or the Encyclopedia Astronautica!

Overall, this is a good setting. I have always liked playing in a grittier, harder sci-fi setting like Orbital. I really appreciate the changes Mr. Elliott makes from the Cepheus Engine basic rules. If I have a criticism, it is that I wish Zozer Games had taken the opportunity to relook at the layout of the book and move some items around (especially Secret Agendas and Status) to make these distinguishing character features more prominent and not bury them near the end of the product.

If one is looking for a 2d6-based science fiction setting that can be adapted for The Expanse, Orbital 2100 is a very close fit. To avoid legal entanglements Mr. Elliott is obviously very careful with references to The Expanse with only three mentions in the entire book (one of which is The Expanse entry in Resources). The Expanse has its own spacecraft technology and combat vision, best shown in the episode “CQB”, but a moderately resourceful referee can probably make the adjustments necessary to capture an Expanse-like narrative. At the very least the Orbital 2100 spacecraft design sequence can make DSV’s with NPF in a tail-sitter configuration, and Mag Boots are found on p. 86!

Orbital 2100: A Solar System Setting for the Cepheus Engine Game. Copyright (c) 2016 Samardan Press, Author Jason “Flynn” Kemp.

Cepheus Engine: A Classic Era Science Fiction 2D6-Based Open Gaming System. Copyright (c) 2016 Samardan Press.

“The Traveller game in all forms is owned by Far Future Enterprises. Copyright 1977-2015 Far Future Enterprises.”


#SciFiFriday #TravellerRPG Legal Wars – Give me Advocate-1!

When can you write about the Traveller RPG? Can you sell what you write?

Traveller, in all its forms and editions, is copyrighted. Copyright protects the publishers (Far Future Enterprises and its licensees) from unauthorized copying or publication. Traveller and associated words and terms are trademarks. Trademark protection protects the publishers from unauthorized use of marks.

We have a liberal Fair Use Policy. If your activity is non-commercial, you can make copies to support playing the game, you can scan copies for your computer, you can write short programs and spreadsheets which automate processes within the game. You can make copies of pages as handouts for players. You can make web pages in support of Traveller.

Fair Use Explicitly Applies to non- Mongoose Traveller editions….Only Mongoose Traveller is governed by both the OGL and TTL….


3. May I rewrite the game in my own words, scan parts of the book, or create any other derivative works.

No….You can write about the Traveller universe, and put it on your web site… but you can’t reproduce the rules (or reproduce re-writes of rules, etc.) except for about a page (because we give you permission to do that, provided you post the proper acknowledgement).

Far Future Enterprises Fair Use Policy, (C) 2008

Here is the copyright notice in the Mongoose Publishing Traveller Core Rulebook, (C)2008:

Traveller (C)2008 Mongoose Publishing. All rights reserved. Reproductions of this work by any means without the written permission of the publisher is expressly forbidden. All significant characters, names, places, items, art and text herein are copyrighted by Mongoose Publishing.

This game product contains no Open Game Content. No portion of this work may be reproduced in any form without written permission.

In September 2008, Mongoose made available the Traveller Developer’s Pack. The pack included a series of Open Game License (OGL) System Reference Documents (SRD) for Traveller, Mercenary, High Guard, and Vehicles. These SRDs pertain exclusively to the rules of Traveller, not any setting.

Legal rights were explained in the Read Me First document of the Developer’s Pack:

I want to produce material based on older and out of print versions of Traveller, and publish them on a non-commercial basis.

Consult the Fair Use Policy Document.

I want to produce and publish my own original material using the current Traveller rules – both commercially and non-commercially.

Consult the Traveller Logo License.

The Read Me First document also stated:

What Can’t I do?

The following is not permitted under the Traveller Developer’s Pack – if you wish to attempt one of these projects, you should contact Mongoose Publishing for further information at msprange@mongoosepublishing.com. This is not a comprehensive list, and you should get in contact if you want to do anything not covered by the Fair Use Policy or Logo Licenses.

  • Publish material for older and out of print versions of Traveller, and release them commercially.
  • Publish software based on the current edition of Traveller.
  • Publish Original Traveller Universe material beyond the confines of the Fair Use Policy or Foreven Free Sector Logo License.

This arrangement was fine; third party publishers like Zozer Games and Gypsy Knights Games could legally publish alternate settings using the then-current Mongoose Traveller (MgT) first edition Core Rulebook. That is, until Mongoose stopped selling the first edition, thus making any commercial release based on the first edition rules ILLEGAL.

Mongoose Publishing currently sells the second edition of MgT. Like the first edition, the game contains no Open Game Content. At the same time the second edition was released, Mongoose entered into an agreement with OneBookShelf (the company that brings us DriveThruRPG.com) to create the Travellers’ Aid Society (TAS) and brought the Community Content Agreement (CCA) to the Traveller gaming community. The CCA allows for commercial uses of the MgT Core Rulebook “…provided that they only use the game system rules and game terms found in the current [my emphasis] edition Traveller books published by Mongoose Publishing.” The real interesting part of the CCA is how the agreement grants Mongoose broad rights to YOUR IP:

“User Generated Content” shall be defined as the copyrightable elements included in your Work, such as original characters, scenes, locations and events. User Generated content shall not include the illustrations and cartographic artwork included in your work. Per the terms of this Agreement, you expressly agree that your User Generated Content, once submitted to the Program will become Program IP and useable by other members of the Program as well as the Owner as described in this Agreement.” Web Post by Harl Quinn – 05-02-2016

What this means is if you are a third party publisher who wants to sell an original setting using the MgT second edition rules, the only way you can legally do so is to use TAS and GIVE UP your IP to Mongoose (not to mention that posting to TAS also means you give up a larger portion of the financial proceeds of the sale to Mongoose and OBS).

The combination of no Open Game Content in the “current” MgT second edition and the CCA effectively means there is no allowable commercial use of the “current” edition rules other than that specified by the CCA. Most importantly, any IP you place in TAS no longer belongs exclusively to YOU; Mongoose and ANY OTHERS can use YOUR IP freely.

Gypsy Knights Games in the comments adds: “I would like to correct one small thing in this post. While it is true that Mongoose and anyone else who likes can use any part of your IP in any way they want, it is important to note that the person using your IP must also be part of the CCA/TAS agreement. It is a small distinction but I think it is an important one.”

Mongoose is not the only publisher with a CCA. Wizards of the Coast has their Dungeon Master’s Guild,  Margaret Weis Productions has their Cortex Plus Creator Studio, and Monte Cook Games has their Cypher System Creator. I can appreciate these folks trying to protect their IP, or in the case of Margaret Weis protecting several licensed IP.
I also totally agree with the third party publishers who don’t like this arrangement. I wrote about that earlier this year, when the outlook looked very bleak. I didn’t see anybody taking the Evil Hat Productions approach of releasing most of their line under not one, but two proper-use licenses.

Thankfully, the future looks much brighter now, thanks to Jason “Flynn” Kemp of Samardan Press. Mr.Flynn has taken the Traveller OGL SRDs and created the Cepheus Engine System Reference Document: A Classic Era Science Fiction 2D6-Based Open Game System. Quite a mouthful, but important for the Advocate skill-holders out there.

Please Note: This product is derived from the Traveller System Reference Document and other Open Gaming Content made available by the Open Game License, and does not contain closed content from products published by either Mongoose Publishing or Far Future Enterprises, and it makes no claim to or challenge to any trademarks held by either entity. The use of the Traveller System Reference Document does not convey the endorsement of this Product by either Mongoose Publishing or Far Future Enterprises as a product of either of their product lines. – Cepheus Engine System Reference Document (c) 2016.

The impact of the Cepheus SRD has been near-instantaneous. Zozer Games has published Orbital 2100: A Solar System Setting for the Cepheus Engine Game. This week, Gypsy Knight Games released Clement Sector: The Rules (An Alternate Cepheus Engine Universe). The GKG rules follow a major rework of their entire (formerly) Traveller RPG-releated line to make their products OGL compliant, even going so far as to strip the word “traveller” from all their books. These products are great because the rise of Cepheus has given me my 2d6-based Sci-Fi adventure gaming mojo back!

You know what? I’m OK with that.

I’m OK because after years of disappointing Mongoose content and watching the roll-out of their second edition (which fails to impress me) I now understand Mongoose is making a naked attempt to take back commercial profits of an IP that the OGL SRD release gave away. Mongoose wants to make bank not only on the Classic Era Third Imperium setting, but any other setting that uses “their” rules engine.

Since 1979 I have gamed with Traveller, but Jason “Flynn” Kemp, Paul Elliott at Zozer, and John Watts at Gypsy Knights Games have together taught me I don’t need “Traveller” to play a fun 2D6-Based Classic Era Sci-Fi RPG.


Post Script: But wait, isn’t there another “current” Traveller RPG out there? All this legal wrangling over MgT second edition also got me thinking about Traveller5. According to the front plate in the T5 Print Edition 5.1:

Copyright (C) 2015 Far Future Enterprises.

All Rights Reserved.

No part of this book may be reproduced in any form or by any means without express written permission from the publisher.

FFE maintains a FUP Fair Use Policy (available on request) detailing reasonable uses of the Traveller5 game system (including references to the material, copying, web presences, and derivative works) while still respecting its copyright and intellectual property.

It appears that T5 is not Open Game Content but allows reasonable non-commercial use. Not being governed by the Open Game License will require negotiating commercial-use with FFE.

“The Traveller game in all forms is owned by Far Future Enterprises. Copyright  1977-2015 Far Future Enterprises.”