What you'll find here is a cross between fluffy expansion on the settings that I enjoy and the crunchy mechanics of the various rule systems. Game mechanics will cover anything from classes, races, feats, and/or skills. Check how an article is tagged to see if it's for the system you're looking for. It might not be, but can hopefully be adapted easily.

 I'm tellin' ya, Sarge. I ain't never seen a Tusk tore apart like that, flailin' about even as the things cut him to ribbons.
- Corporal Jonathan Fisher, Hood 3rd Infantry Group, After Action Report #FH-9862-689-03

Harriers are bird-like creatures that hunt in packs. Their exact color varies, but all resemble large birds of prey, with a razor sharp beak, feather-covered body, rending talons, and incredible speed. A single Harrier is about the size of a large house cat (15-20 lbs). The only anatomical feature which identifies this creature as a Breach creature is a pair of small forearms enabling the creature to grapple its prey and hold it in place (or hold on).

I originally posted these on the Google+ Breachworld community as one way to handle shape shifting and introduce some horrific elements to the game. I opted to make the Shape Shifter an advanced class with access to a special category of Aether feats. Here is the complete list and the shape shifter will follow.

 I.. I don't know, sir. It was a man when he charged us, an enormous, bipedal wolf when it tore out Baker's throat. I just ran after that.
- Sergeant Damian Shaw, 2nd Recon Group, New Caldera Expeditionary Forces Court Martial Hearing

It's been difficult to pin down the exact origin of the Shape Shifter. Their story resembles the legendary lycanthropes of Earth's past, but it's unclear exactly when after The Fall they first appeared. The first stories seemed to told by travelers from the North and West of the Civilized Lands - hunters tracking game following a set of prints that mysteriously change to human footprints or an animalistic human that runs down prey, feasting on it raw.