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Old 06-15-2009, 09:08 PM   #1
Rowan
 
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Default Quick and Dirty Planetary System Generation?

Anyone know of a table or a method to make planetary system generation stamped down into making a small handful of roles? I'm thinking of putting together a space setting, with aspects of real tech, and safe tech flavors so far. I'm going back to the old setting I hashed out a few months back. Where mostly some super science reaction drives (like fusion torch) with FTL achieved through STL ships carrying the materials to make connecting star gates. I'm putting it at 'mature' TL 9, just on the cusp of very early TL10.

No energy weapons perse. No handhelds at least.. lots of ray gun controls for those are are around, and 'eventually' experimental warp ships much much later in the campaign.

However, I'm afraid with warpships the tendancy to hop to just go to the second star to the right and straight on till morning may leave me at a lost to 'explain' what's found there. So I was hoping for an easy way to condense the star/system generation rules in gurps SPACE into something I can use to generate a system in a few minutes.

Any ideas? Possible, impossible?
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Old 06-15-2009, 11:25 PM   #2
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Default Re: Quick and Dirty Planetary System Generation?

Try to get Space 2e or 3e. 3e was simpler than 4e, and 2e was simpler than 3e.
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Old 06-15-2009, 11:41 PM   #3
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Default Re: Quick and Dirty Planetary System Generation?

Tim Cain had a GURPS Star system generator that worked in DOS. Very good, lots of detail gvine the limitations of MS=DOS. It may still be up on the game aids section of SJG.

Edit: Yep and a mac version too.

http://www.sjgames.com/sjgames/gurps...s/gm-aids.html

Edit: Got it up running and did this in a few minutes. Spent multiples of that time trying to find the saved files using XP's search, forgetting they are saved as .sun files.

Anyway copy the .sun file click on properties and change it to .txt so you get easy access to the data without removing it from the program's saved worlds.

Sample:

Quote:
Originally Posted by world generated
Stryker123
Location: 2 (Globular cluster)
Campaign TL 1: Bronze Age
Catalog number: 23598028

Stellar Information:
Number of stars: Single star
Class: Main sequence - Class V
Type: M (Red)
Brightness: 6
This is a Population 1 star
Biozone: 0.10-0.20 AU
Number of planets: 12
Oort Cloud: Present
Phenomenon: None

Planetary Information:

1 0.20 AU Terrestial Diameter=10,361 miles Density=4.9 1.16G
Planet composition: Iron average
Gems/Crystals: Scarce, needs to be imported for industry
Rare Minerals: Plentiful, exported if great demand
Radioactives: Scarce, needs to be imported for industry
Heavy Metals: Scarce, needs to be imported for industry
Industrial Metals: Plentiful, exported if great demand
Light Metals: Ample for local use, no surplus
Organics: Almost entirely absent
Tilt: 31 Seasons: Normal
Day: 72 days
Year: 0.83 local days, 0.16 Earth years
Moonlets: 1 Small: 0 Medium: 0 Large: 0
Pressure: Thin
Atmosphere composition: Reducing (hydrogen, carbon dioxide, methane)
Liquid water covers 28% of the surface.
Humidity: 72%
Climate: Tropical: Low,Average,High Temps = 80,100,120
Dominant native life: Lower animals (IQ 2-3): insects, fish, amphibians
One hex on map = 725.3 miles

2 0.80 AU Asteroid Belt

3 1.40 AU Medium Gas Giant Diameter=46,666 miles Density=1.3 1.39G
Tilt: 6 Seasons: Minor
Day: 10 hours
Year: 2,651.14 local days, 3.02 Earth years
Moonlets: 9 Small: 12 Medium: 7 Large: 0
Giant: 1 Small gas giants: 0
Special feature: Retrograde or inclined moon

4 2.60 AU Terrestial: T/NA Diameter=4,944 miles Density=7.2 0.82G
Planet composition: Metal rich
Gems/Crystals: Scarce, needs to be imported for industry
Rare Minerals: Extremely plentiful, exported
Radioactives: Plentiful, exported if great demand
Heavy Metals: Plentiful, exported if great demand
Industrial Metals: Extremely plentiful, exported
Light Metals: Extremely plentiful, exported
Organics: Almost entirely absent
Tilt: 0 Seasons: None
Day: 21 hours
Year: 3,195.08 local days, 7.65 Earth years
Moonlets: 0 Small: 0 Medium: 0 Large: 0
Pressure: No atmosphere

5 5.00 AU Medium Gas Giant Diameter=54,732 miles Density=1.3 1.63G
Tilt: 3 Seasons: Minor
Day: 9 hours
Year: 19,881.69 local days, 20.41 Earth years
Moonlets: 14 Small: 10 Medium: 4 Large: 0
Giant: 0 Small gas giants: 0
Special feature: None

6 9.80 AU Medium Gas Giant Diameter=45,704 miles Density=1.9 1.99G
Tilt: 25 Seasons: Normal
Day: 110 hours
Year: 4,463.62 local days, 56.01 Earth years
Moonlets: 10 Small: 7 Medium: 7 Large: 2
Giant: 0 Small gas giants: 0
Special feature: Retrograde or inclined moon

7 38.60 AU Terrestial: T/NA Diameter=4,673 miles Density=6.9 0.74G
Planet composition: Iron rich
Gems/Crystals: Scarce, needs to be imported for industry
Rare Minerals: Scarce, needs to be imported for industry
Radioactives: Scarce, needs to be imported for industry
Heavy Metals: Scarce, needs to be imported for industry
Industrial Metals: Scarce, needs to be imported for industry
Light Metals: Extremely plentiful, exported
Organics: Scarce, needs to be imported for industry
Tilt: 30 Seasons: Normal
Day: 50 hours
Year: 76,762.97 local days, 437.84 Earth years
Moonlets: 0 Small: 0 Medium: 0 Large: 0
Pressure: No atmosphere

8 77.00 AU Small Gas Giant Diameter=34,203 miles Density=1.4 1.10G
Tilt: 40 Seasons: Major
Day: 23 hours
Year: 470,163.69 local days, 1,233.60 Earth years
Moonlets: 11 Small: 8 Medium: 5 Large: 0
Giant: 0 Small gas giants: 0
Special feature: None

9 153.80 AU Large Gas Giant Diameter=85,785 miles Density=2.5 4.91G
Tilt: 24 Seasons: Normal
Day: 11 hours
Year: 2,775,125.68 local days, 3,482.36 Earth years
Moonlets: 15 Small: 12 Medium: 8 Large: 4
Giant: 1 Small gas giants: 0
Special feature: None

10 614.60 AU Medium Gas Giant Diameter=49,010 miles Density=2.4 2.69G
Tilt: 3 Seasons: Minor
Day: 20 hours
Year: 12,192,694.08 local days, 27,818.15 Earth years
Moonlets: 14 Small: 3 Medium: 4 Large: 3
Giant: 0 Small gas giants: 0
Special feature: None

11 1,229.00 AU Asteroid Belt

12 2,457.80 AU Medium Gas Giant Diameter=49,228 miles Density=1.5 1.69G
Tilt: 12 Seasons: Minor
Day: 9 hours
Year: 216,679,656.96 local days, 222,463.71 Earth years
Moonlets: 14 Small: 10 Medium: 5 Large: 0
Giant: 0 Small gas giants: 0
Special feature: None
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Last edited by Captain-Captain; 06-16-2009 at 12:14 AM.
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Old 06-15-2009, 11:43 PM   #4
hal
 
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Default Re: Quick and Dirty Planetary System Generation?

There is also this if you're interested. The software game aids for the GM are such that there is already a spreadsheet allowing you to generate star systems. You may want to take a close look at some of the other applications for star system generation.

http://www.sjgames.com/general/gm-aids.html#gurps
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Old 06-16-2009, 11:33 AM   #5
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Default Re: Quick and Dirty Planetary System Generation?

Thank you, all. These suggestions will work just fine I think. =)
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