I've decided to take a closer look at Ironclaw and I'm remembering why it was an interesting system to me in the first place. Fair warning, if you've got a fur allergy this system's not for you. I don't really associate with the furry community but I like critter people if they're cool/cute and I like interesting game systems. Unlike most systems, it uses a combined dice pool of several different dies depending on your stats, skills and circumstance. For example, let's say your character wants to build a nice chair. He has a Mind score of d6 and a Career Skill of Chair-Making that's been invested up to d8 as well. The standard difficulty for tasks is 3, and for something like a simple chair you'd only need one success (4+ in this case.) For a fancier chair, he'd have to roll two successes of 4+ with his two corresponding dice. This kind of resolution means that a sufficiently strong/clever/swift character can get some basic stuff done without any particular training, but they'll have to invest if they want to really knock out results.
Being a game involving critter people, the racial options are a wide variety of critters to choose from, each with a set of mechanical gifts to make them play different from other folk. This can range from rodents being able to squeeze into any opening their head can fit through to echolocation or even natural spines that make engaging with a charater in close combat incredibly unappealing.