Oathbound

Oathbound is a magnificent setting, like many of its predecessors its is a place where a variety of creatures from across the multiverse are pulled to. It is a world and a plane much like "Ravenloft" and "Ptolus", in the sense that you are pulled in and drawn to the plane by unknown circumstances and you cannot return home.

Oathbound concept is that long ago, a powerful deity was imprisoned by the others gods for some unknown crime. All records of its existence has been stricken from recorded history. The only ones who know of its true nature and place in reality are several of its servitors that were tasked to ensue the deity would never wake. These seven over the aeons grew bored with their tasks and accidentally created a world over their prison.
By drawing in bits and pieces from other place they created a planet, moons, and suns. They soon realized that they too could draw in life forms to populate the world. Through this form of diversion they accidentally discovered they weakened the locks, and the divine geas that they were under had loopholes.

The planet they created has become known as the Forge. Two suns and two moons orbit around the world. 
The largest yellow sun is Crux, and Storm is the smaller red sun. Anahita is complete made of water, and appears a a luminescent blue orb, while Zadkiel appears as rust since it is made of metal and rock. The stars seen from Forge are portals to other worlds and planes located far away. Each time one of the Seven pulled something through it connected this plane with a permanent portal. Each of the Seven divided up the world, and the domain that they rule are directly where their locks are. Each domain is unique for each of them had a particular affinity for a certain type of terrain in mind. Anvil for example is a desert like domain, arid and hot, and ruled by Orif'elle Scourge of the Wind. The domain of Arena is a rocky and harsh wasteland overseen by Barbello the Mistress of War and Destruction. The mountainous regions of Kiln, is ruled by the most contemplative of the Seven, Bathkol the Unanswered Question. The plains of Penance is ruled by Israfel the Queen. The oldest of the Seven is Nemamiah the Leper, she rules the artic area of the Vault. The forest area of Wildwood is where Haiel the Hunter hold sway.

Lastly was the domain of Eclipse, once overseen by Annoxus, through some quirk of destiny or fate he was freed from his post. For you see each of the Seven can only be freed if someone defeats them and willing takes their place. A thief managed to pass through the ward and traps Annoxus had put and was defeated by a mortal human. Thus human soon took over the domain of the a dark underground and became known as Colopitiron. Annoxus now free, works to understand the Forge now and secretly hope to find away to unleash his master. In order to prepare for this... he has been careful cataloging every secret and piece of information for his master.

As to the mortal races, there are several new and exciting races to be found on Forge. Yet any creature, race, animal, can be drawn to the Forge. Usually those taken this way see a flock of Ravens surround them and they are deposited in one of the many areas of the forge. More often than not each is gifted with new equipment and abilities that give them an edge to survive by one of the Seven.