Skein of Worlds:Random Planet Generation

Skein of Worlds « Rules and Tables « Random Planet Generation

Sometimes the characters fall through a rabbit hole and you don't know where it leads.

This system is set up to use just about any dice you might have handy. Each table includes columns for 3d6, 2d20, 1d100 and 5dF (1d20 gives results that are too coarse for this). Of course, you can just choose entries off the tables as well.

Quick and Dirty

For a quick and dirty approach to planet generation, we'll assume that the system the planet is in is unimportant, and generally nothing too special. The first step, then, is to decide how balanced the planet it. For each element, roll on the following table. There should be much more detail in the results of each roll.

3d6	2d20	1d100	5dF		Earth	Water	Air	Fire	Civ. Score
3-4	2-5	1-2	-5 - -4	Severe Deficiency	Almost nothing solid. Dry land is composed of lifeless dust.	Completely dry.	Nothing breathable.	Completely frozen.	-5
5-6	6-9	3-9	-3	Major Deficiency					-2
7-8	10-15	10-26	-2	Minor Deficiency					0
9-12	16-26	27-74	-1 - 1	Balanced					+1
13-14	27-32	75-91	2	Minor Overabundancy					0
15-16	33-36	92-98	3	Major Overabundancy					-1
17-18	37-40	99-100	4 - 5	Severe Overabundancy					-4

After checking the results for each element, total the Civ. Score and compare it to the following table.

Score	Life	Civilization
-4 or less (8.46%)	Life might exist, but it will be tough and either generally vicious or fairly scrawny	Civilization generally does not exist in places this hostile
-3 - -2 (12.33%)	Life likely exists, but is heavily adapted to the harsh environment	Civilization might just edge by, but will spend all energy just surviving
-1 - 0 (22.88%)	Life begins to look more normal	Civilization could exist; most will either stay small working with the environment, or grow large working against it
1 - 2 (36.07%)	Life exists normally	Civilization exists normally
3 - 4 (20.26%)	Life thrives	Civilizations will have a lot of extra energy to spend on art, magic or war