Sunday, August 11, 2013

Traveller Tuesdays - T5 based System Generation Modification


Following the split that took place earlier, I am posting Content articles over at The Etzina Passage, but alternative Rules articles (and reviews) here on Gaming with Chuck. This is an alternative (or house) rules article. It has to do with a modification to the Mongoose method of rolling up system contents (other than the main world). It has been inspired by my investigation of the new T5 from Marc Miller.

As a modification to the system contents developed earlier, here, this is an alternative method to develop the nature of the worlds within the different orbitals, inspired by the work in T-5 (pages 426-443).

Once the various orbitals are filled, follow the rest of the procedure shown earlier, for determining the location of left over planetoid belts and gas giants, and then for developing the location of significant bases.

Inner Zone Occupied Orbital


2d6 - Check against following
Double 1 - Gas Giant (if exists)
Double 6 - Companion Star, place in last orbit of system, ignore (reroll) future Double 6

Otherwise, look at lowest of the two dice.
diceResult
1,2Roll on Inner Zone world table
3Planetoid belt, if possible, or Size 1 world (Worldlet) otherwise
4,5Roll on Inner Zone world table
6Planetoid belt, if possible, or Size 1 world (Worldlet) otherwise

Inner Zone World table
diceWorld
1Worldlet
2Inferno
3Secondary World
4Big World
5Storm World
6Rad World


Chance for satellite?
Gas Giant - 1d-1 (significant satellites)
If 0 is rolled exactly, there is a ring (only)
Otherwise, then 1d6 (3+) chance for ring
Other Inner Zone worlds - 1d-5
If 0 is rolled exactly, there is a ring.

Inner Zone Satellite table
diceSatellite
1Worldlet
2Worldlet
3Inferno
4Secondary World
5Storm World
6Rad World
7Big World
+1 to dice, if checking for
a Gas Giant satellite


Habitable Zone Occupied Orbital


2d6 - Check against following
Double 1-5 - Gas Giant (if exists)
Double 6 - Companion Star, place in last orbit of system, ignore (reroll) future Double 6

Otherwise, look at lowest of the two dice.
diceResult
1,2Roll on Habitable Zone World table
3Planetoid belt, if possible, or Size 1 world (Worldlet) otherwise
4,5Roll on Habitable Zone World table
6Planetoid belt, if possible, or Size 1 world (Worldlet) otherwise

Habitable Zone World table
diceWorld
1Worldlet
2Inferno
3Hospitable World
4Big World
5Storm World
6Rad World

Chance for satellite?
Gas Giant - 1d-1 (significant satellites)
If 0 is rolled exactly, there is a ring (only)
Otherwise, then 1d6 (3+) chance for ring
Other Habitable Zone worlds - 1d-4
If 0 is rolled exactly, there is a ring.

Habitable Zone Satellite table
diceSatellite
1Worldlet
2Worldlet
3Inferno
4Hospitable World
5Storm World
6Rad World
7Big World
+1 to dice, if checking for
a Gas Giant satellite


Outer Zone Occupied Orbital


2d6 - Check against following
Double 1-5 - Gas Giant (if exists)
Double 6 - Companion Star, place in last orbit of system, ignore (reroll) future Double 6
If total of 2d6 is greater than orbital, then Gas Giant (if exists)

Otherwise, look at highest of the two dice.
diceResult
1,2Roll on Outer Zone world table
3Planetoid belt, if possible, or Size 1 world (Worldlet) otherwise
4,5Roll on Outer Zone world table
6Planetoid belt, if possible, or Size 1 world (Worldlet) otherwise

Outer Zone World table
diceWorld
1Worldlet
2Ice World
3Ice World
4Big World
5Ice World
6Rad World

Chance for satellite?
Gas Giant - 1d-1 (significant satellites)
If 0 is rolled exactly, there is a ring (only)
Otherwise, then 1d6 (3+) chance for ring
Other Outer Zone worlds - 1d-3
If 0 is rolled exactly, there is a ring.

Outer Zone Satellite table
diceSatellite
1Worldlet
2Worldlet
3Ice World
4Secondary World
5Storm World
6Rad World
7Big World
+1 to dice, if checking for
a Gas Giant satellite


World Types

For all of these different world types, if it is not a Main world, then it will only have a Space Port, rather than a Star Port, otherwise generate as if a Main World. Maximum Population is Main World POP -1.
Wordlet
Size = 1d6-3. Otherwise, generate normal sequence.
Secondary World
Population -4; Hydrographics -4. Otherwise generate normal sequence.
Ice World
Population -6. Otherwise generate normal sequence.
Storm World
Size=2d6; Near constant high winds and storms. Atmosophere +4; Hydrographics -4; Population -6. Otherwise generate normal sequence.
Rad World
Size=2d6. Extremely high radiation. POP=0, GOV=0, LL=0. Otherwise generate normal sequence.
Big World
Size=2d6+7. Otherwise generate normal sequence.
Inferno
Spaceport = Y (no facility). Size=2d6. Atmosphere=B (Corrosive). Hydrographics=0. POP=0, GOV=0, LL=0.
Habitable World
This is a world that could be a candidate for a Main World.

Spaceports

Non Mainworld Spaceports are generated like this:
Roll POP - 1d6. Results are:
2- Spaceport F (Good facility, minor repairs, unrefined fuel) - Downport, good quality terminal.
3 Spaceport G (Poor facility, superficial repairs, unrefined fuel) - Downport, basic terminal.
4,5 Spaceport H (Basic facility, no repairs, no fuel) - Landing slab and a beacon
6+ Spaceport Y - same as Starport X

If there is an Orbital Facility, then it is automatically Spaceport G or higher. If there is a Surface Facility, then it is automatically Spaceport H or higher.
Post a Comment