Rules Index | GM Screen

Step 4: Size

Source Pathfinder RPG Bestiary pg. 290
Now that you have the creature’s average statistics, it’s time to pick its size. Most creatures range in size from Small to Huge, but other sizes are not uncommon. A creature’s size sets a baseline for its physical ability scores and its natural weapon damage (as noted in the Natural Attacks description in the Universal Monster Rules). You should pick a size that fits well with the creature’s intended role in the game and Challenge Rating. If you decide to give a creature an unusual size for its CR or HD, you should justify the unusual choice in the monster’s description to account for the discrepancy—in most cases, such unusually sized monsters should be highly magical in nature. See Table 1–3 for more information on creature sizes and expected scores.

Minimum/Maximum CR: These values list the minimum and the maximum challenge ratings a creature of the indicated size should fall between.

Base Str, Base Dex, Base Con: These list the average scores for a creature of this size. Your specific monster’s Strength, Dexterity, or Constitution might vary greatly from these numbers, but if they do, you should pay close attention to how these variances affect its other statistics.

Table 1-3: Size

Size	Minimum CR	Maximum CR	Base Str	Base Dex	Base Con
Fine	—	2	1	18	8
Diminutive	—	3	1	16	8
Tiny	—	6	2	14	8
Small	—	—	6	12	8
Medium	—	—	10	10	10
Large	2	—	18	8	14
Huge	4	—	26	6	18
Gargantuan	6	—	34	6	22
Colossal	8	—	42	6	26

Archives of Nethys

Rules Index | GM Screen

Step 4: Size

Table 1-3: Size