This reminds me of when and how John Wick created Orkworld.
He was in the weekly D&D game at AEG that John Zinzer ran. Wick wanted to be an ork (not orc) bard. Zinzer said, "John, you can't. Orcs are just speed-bumps to the plot." So they haggled. If Wick gave him reasons orks could be PCs and heroes, he'd let him.
Next session, Wick shows up with a four-thousand word essay on ork culture, structure, and the who shebang. It's an interesting setting and system - orks are nomadic reindeer herders, elves are utterly alien and evil and can only be killed through trickery or other elves, dwarves all chase perfection, humans are Romanesque and halflings... were hunted to extinction by the humans. It's also the first game system I had seen where the players sat down and built their tribe, with advantages about knowing how to make steel or having extra reindeer or warriors, etc
Wick's Orkworld Ahlvsees are bodysnatching body-morphing alien monstrousities... They don't procreate like mortals... they instead possess their victim, then reshape the body into an elf-shape. And when it's broken too much, they hop forms...
The Dwarves are comically obtuse, too.
It's also worth noting that the mechanics don't work well - a few oversights- but they do enforce the trope that the tribes are dying out due to a mix of bad hunting (due to Humans) and being hunted by humans...
The rules don't start until page 178...
To get it to something survivably (for the PCs) playable requires several
interesting readings of the extant RAW. Careful ones.
The game is a narrativist/gamist hybrid... you get ONE hunting scene per winter; anyone who hunts doesn't get to fight monsters, and monsters always attack in winter. A zhoosha 1 thraka with skill 3 in a hunting-related skill generates 2 5/24 food points.... on a medium year. On a bad one, tho... that same guy is worth an average of 1 5/9 food points.
THat's not a sim approach. It's one roll for the winter, because the winter feast is a dramatic need.
There's one monster raid in the winter. Always. It's a dramatic need. And the "hunters can't fight the monsters" isn't always true... it's only true about half the time, but can you afford that risk?
And, despite the lore that says pregnant dowmgaday become dowmga and move out, the rules read as though they can stay in as lesser dowmga... as I said,
interesting reads....
There is plenty to sim-mode the personalities, but at its heart, John expects players to "play dirty" - know the key mechanics, and work them, because the story arises from both participants and mechanics. And to use the flexibility of the light mechanics (Zhoosha+Virtue+Skill)d6k1 to handle any oddities by just picking a difficulty based upon their chosen skill (and quickly - he sets a 5 second rule) and having them roll.
There is literally no room for classic sim mode via tables, nor for "reasoned sim mode" by considering all the angles...
He also gives some
Wicked notice on GMing...
Finally, let's spend a moment or two talking about the difference between "fair" and "arbitrary." There's a lot of people who will try to tell you a GM is arbitrary
This is Bad.
Players already have one arbitrary force against them: the dice. Dice don't care if a player's action succeeds or fails. Dice don't care about a character's motivations, needs, pains and fears. Your roll the bones, you get a decision that's completely independent of all circumstances. That's arbitrary.
A Game Master, on the other hand, is fair.
A GM always considers the outcome of his decisions. He always considers the consequences of bonuses and penalties. He always has the players (and their characters) foremost in his mind.
Let me say this again: the players are depending on you to have a good time. Their enjoyment is in your hands. Making random, arbitrary decisions is no way to win their favor or trust. You lose those two things, you lose your players. And then nobody has fun.
Given the original post version, the psionics distinction is rather arbitrary.
Given the revised version a few posts up? If it's not new info, it's not arbitrary. Stating there are consequences ahead of time is,
@GMMichael , a form of mechanical enforcement. A weak one, but a rule none the less. If none of that had been established prior to the point the decision needed to be made, the GM bringing them up now would be Arbitrary, and hence, violate "Wheaton's Law" - which you can feel free to google.