Re: IC: Homebrew setting, "Noblu Zubaen"
The system developed from a desire to have a classless system, so I combined D20 and Savage worlds. Most abilities are skills, though some skills require certain feats to use. This includes combat and powers. There is a fatigue score and using certain abilities including spellcasting consumes this fatigue.
I use a lot of soft caps rather than hard limits, so you can often push your character, though it is risky to do so.
As for races, most of the common races are found, though none are predominantly abundant, so humans, elves, dwarves, etc can be found. I also have three races of my own making, Reaplings (an artificial race of necromantic life, that come in a number of forms), Zyphers (a mono-gender tiger-like race with lots of magic that can be expressed differently between individuals), and the Fealin (a small race of humanoids that can spin silk like a spider).
The world has backstory for why there are so many races, and there is plenty of room for more of them.