Constrictor SerpentFolk in BRP

Here's another entry for my BRP Bestiary. The largest type of SerpentFolk, the Boai, keep this week's post in their uncompromising embrace... Along with this, I need to provide the Hit Location chart for all of these slithering monstrosities so that they better fit into the optional rules presented in the Basic Roleplaying rule book. I do so love the modular nature of the Big Gold Book!

As a point of note, these SerpentFolk entries could easily find a home in your fantasy campaign, or as a further differentiated version of Call of Cthulhu's Serpent Men. They were originally envisioned to be part of a CoC campaign set in my hometown in Texas, US. Anthropomorphic snake-aliens genetically modified from Terran stock? Yes, please!

Hit Locations
D20 roll result (HP formula)
1-2 Hindtail (1/4 total HP)*
3-8 Foretail (1/3 total HP)*
9-11 Abdomen (1/3 total HP)
12 Chest (2/5 total HP)
13-15 Right Arm (1/4 total HP)
16-18 Left Arm (1/4 total HP)
19-20 Head (1/3 total HP)
*due to the nature of their anatomy, SerpentFolk use slightly different rules when their tails are injured. Injuries to Hindtail do not affect their movement rates, nor cause them to fall.
Injures dropping their Foretail location to 0 or lower force them to crawl along using their arms.

Constrictor SerpentFolk
The Boai SerpentFolk require a unique combination of climate and environment. Their size demands a hot, humid region to keep their powerful metabolisms running. Boai, being large predators, also settle only in lush areas with a variety of potential prey. From birth, their diamond-patterned bodies continue to grow as long as they have a ready supply of food. They tend to spend their early years growing to intimidating size either on their own or protected by their parents. Once they out-grow others, they create around themselves a retinue that provide their giant overlord with what they want so they can pursue their own interests. These groups quickly organize themselves into a hierarchy. The thugs and brutes which best provide for their Boai master rise to the top. Those who don't help them practice their grappling techniques.

The most social type of SerpentFolk, mature Boai will first attempt to dominate anyone who they come in contact with. Juveniles work at attracting as little notice as possible until they gain sufficient size and strength to control others. Descended from constrictors, the Boai grapple their foes and work their strong coils around them to suffocate them.

Characteristic Roll (Average)
STR 3d6+6** (16-17)
CON 3d6+3 (13-14)
SIZ 3d6+6** (16-17)
INT 3d6 (10-11)
POW 3d6 (10-11)
DEX 3d6 (10-11)
APP 3d6 (10-11)
Move 11
Hit Points 15
Damage Bonus +1d6
Armor 3 (heavy scales)
- Heavy Mace 45%, 1d8+2+db (crushing)
- Grapple 75%, varies
- Brawl 55%, varies
- Command 15%, Dodge DEXx3%, Insight 40%, Language (Reptilian) INTx5%, Language (Other) INTx2%, Persuade (Intimidation) 30%
- Boai Growth. When individual Boai have sufficient food, they grow. While slow, this rate of growth will continue until the brute meets with a violent end or old age overtakes them. After introducing a Boai character into a campaign, track their growth. As long as they do not fall into subsistence living, you should add 1d6+3 to their STR and SIZ characteristics every two (2) years. See the table below for the average STR and SIZ for the early years of Boai development. As a note, the Boai do not sexually mature until they are 12-13 years old.
** These stats represent a young Boai, just preparing to gather their gang around them.

Age in years STR and SIZ roll (Average)
birth-1 1d6 (3-4)
3-7 2d6+3 (10)
8-14 3d6+6 (16-17)
15-16 4d6+9 (23)
17-18 5d6+12 (29-30)