Using SRD to create own game

sideranautae

Mongoose
After playing MgT for a couple of years my players want to change a lot of things. I have decided to use the SRD as a base to write all the rule changes/clarifications into in order to have a "new" rule set. I love that they put out SRD's so that we can write something and hand it out without breaking copyright. Here is an example of one very small section rewrite.

Shipboard accommodations and life support:

Staterooms
Each stateroom is sufficient for two persons, requires 6 tons, and costs Cr. 500,000. No stateroom can contain more than two persons, as it would strain the ship’s life support equipment. The tonnage and cost of the staterooms includes the life support systems required. The stateroom itself takes up 3 tons (13.5 square meters or, 6 - 1.5 meter deck squares) of space and contains full bath, entertainment systems and the usual storage found in a hotel room. One ton is set aside for passageways. One ton is dedicated for common space such as dining facilities. That leaves one ton for life support. Life support equipment is in the engineering spaces. Two thousand liters of water per stateroom (recycled throughout the trip) is carried as part of this tonnage. The remainder of the L.S. tonnage is taken up by atmosphere & water recyclers, food storage, auto-chef and HVAC machinery. Starships utilize a 100% Closed System for air & water.

The cost breakdowns are as follows: Cr 200,000 is for the 3 tons of Stateroom, 1 ton passageway & 1 ton of common space (Cr 40,000/ton). Cr 300,000 is for the L.S. items listed above. Thus, one could spec a larger stateroom (but not more passengers) for an additional Cr 40,000 per ton.

Low Passage Berths
TL 9-13: A low passage berth carries one low passenger, costs Cr. 50,000, and displaces one-half ton. This is a sealed tube where a person is placed and given 2 drugs. The first causes body metabolism to slow by a factor of 30. Thirty days seem as but one. The 2nd drug causes the person to sleep for one subjective (recipients viewpoint) day. The berth is ultra low gravity to prevent bed sores and has medical monitoring equipment.

TL 14-15: Cost & volume are the same as above but this Low Berth utilizes advanced gravitics quantum mechanics to virtually stop motion in the body at the atomic level. A lack of motion means no time passage.

Emergency low berths are also available; they will not carry passengers, but can be used for survival. Each costs Cr. 100,000 and displaces one ton. Each holds four persons. This type follows the same paradigm as the Low Berths listed above. The lower TL design is good for only 30 days of “storage” while the TL 14-15 models can be utilized for as long as power is provided. Usually by nuclear batteries that last for at least 10 years. Larger batteries (costing more and taking up slightly more space can be purchased with different models of low berths.
 
Have fun.

By the way, I tend to think that low berths are cryostasis tech. Its not like the game is too attached to modern day science, so I wouldn't worry about scientific accuracy. Feel free to ignore me on this.

As for staterooms, maybe come up with something for additional life support systems (I haven't got around to it yet). Sometimes you might need to support as many lives as possible instead of only carrying only the number that is comfortable to carry. The most efficient use of room that I've seen in the books (thus far, as I have yet to read all of them) is the Stock Barracks in Merchant Prince p. 114 . It allows you to store 20 slaves in a 10 ton space (2 people per ton), for 25,000 Cr.
 
DivineWrath said:
Have fun.

By the way, I tend to think that low berths are cryostasis tech. Its not like the game is too attached to modern day science, so I wouldn't worry about scientific accuracy. Feel free to ignore me on this.

I'm taking a page out of some Traveller articles from 70's - early 80's. Wanted to do something different than the popsicle route I've used on and off for 30 years.

DivineWrath said:
As for staterooms, maybe come up with something for additional life support systems (I haven't got around to it yet). Sometimes you might need to support as many lives as possible instead of only carrying only the number that is comfortable to carry. The most efficient use of room that I've seen in the books (thus far, as I have yet to read all of them) is the Stock Barracks in Merchant Prince p. 114 . It allows you to store 20 slaves in a 10 ton space (2 people per ton), for 25,000 Cr.

That can be extrapolated from the write up I posted. The amount of LS tonnage per 2 people is in the description. With that amount taken care of you could stack people like cord wood and they'd live. Even if very uncomfortably.
 
I think you are a little hung up on the Stateroom Idea of Life support, in that the Plant should be separate from accommodations et al. A half ton per person as the volume is a bit much for the plant, kinda.

Consider this like the system as presented in TMB, you cannot ship live cargo as you cargo area would have to be defined as Staterooms, where you could have a oversized LS Plant that could support it (And Steerage passengers as well, but they are just another form of livestock aren't they?).

Also consider accommodations, in all their forms, Bunks (0.5 ton), cubbies (1 ton), cabins (2 tons) etc, then you add in things like Freshers, I can see most ships having common freshers for everybody except High Passengers and Command Officers (plumbing commodes and showers etc is a pain, and they are a major failure point so the fewer the better).

Just some food for thought.
 
If I knew exactly how much tonnage life support takes up, crew compartments would become a lot more crowded on my ships.
 
Infojunky said:
I think you are a little hung up on the Stateroom Idea of Life support, in that the Plant should be separate from accommodations et al. A half ton per person as the volume is a bit much for the plant, kinda.

No one would ever design separate LS modules for each stateroom and put them into the stateroom rather than engineering. Well, I guess you could but that would be very uneconomical. 1/2 ton to totally break down to molecular level all recycled air and water to have 100% closed loop per 2 people doesn't seam that large. That's only 2.25 cubic meters of LS machinery per person. What size would you make that?

p.s. Take into account that the equipment is way over engineered as it has an effective 0% fail rate if maintained.
 
sideranautae said:
Well, I guess you could but that would be very uneconomical. 1/2 ton to totally break down to molecular level all recycled air and water to have 100% closed loop per 2 people doesn't seam that large.

1st off, "Molecular Level"!?! Ok to that extreme level maybe not small, but that is going to huge effort with little recompense. Though to be honest with the vast amount of power available through the wonders of fusion it probably wouldn't be that hard. But realistically something around the size of a in window HVAC unit probably would all you atmospheric support and with water the separation tank and treatment tanks would be smaller than the final holding tank for waste. Now that is for standard level of Life Support as paint by most ship construction.

2nd Long Term Life Support I could seeing somewhat closer to your described sizes, in that the system also needs to produce nutritional support, which obviously I will leave to your imagination. But in mind that includes a garden and maybe livestock in the form of aquatic life that scavenges excess nutrients out of the system et'al...

sideranautae said:
That's only 2.25 cubic meters of LS machinery per person. What size would you make that?

Half a Displacement ton = 6.75 cubic meters (7 if you go Old School)

sideranautae said:
p.s. Take into account that the equipment is way over engineered as it has an effective 0% fail rate if maintained.

Yes, but it is also very old tech, thus reliability and repairability are both factored in.
 
That's only 2.25 cubic meters of LS machinery per person. What size would you make that?

Infojunky said:
Half a Displacement ton = 6.75 cubic meters (7 if you go Old School)

So you would require MORE equipment and you said I was spec'ing too much. Makes no sense unless a typo?

p.s. Take into account that the equipment is way over engineered as it has an effective 0% fail rate if maintained.

Infojunky said:
Yes, but it is also very old tech, thus reliability and repairability are both factored in.

Yes, old but still high TL so what does that matter? 0% is 0%. In Trav space flight tech is thousands of years old.
 
sideranautae said:
That's only 2.25 cubic meters of LS machinery per person. What size would you make that?

Infojunky said:
Half a Displacement ton = 6.75 cubic meters (7 if you go Old School)

So you would require MORE equipment and you said I was spec'ing too much. Makes no sense unless a typo?

Typo, kinda read something wrong.....

sideranautae said:
p.s. Take into account that the equipment is way over engineered as it has an effective 0% fail rate if maintained.

Infojunky said:
Yes, but it is also very old tech, thus reliability and repairability are both factored in.

Yes, old but still high TL so what does that matter? 0% is 0%. In Trav space flight tech is thousands of years old.

Mostly pointing that a lot of the excess volume through iteration have been removed from the systems.

To be honest I can see a high than 0% failure rate, but there is enough overlap in related systems that a failure in one isn't a game ender.
 
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