For Assetto Corsa, that's just like the TX. You have to go through the wheel setup wizard, then when you complete it. Save it as a profile and call the profile whatever you want. Assetto Corsa won't work without a saved profile, or at least it didn't with my TX.
You have to manually configure the wheel setup in Dirt Showdown, GIRD Auto, Grid 2, rFactor 2, and iRacing because they weren't programmed with a default profile with that wheel because those games were released before the wheel was available. Its very easy to do, I've had to do with my TX for almost all PC games except GRID Auto, only because the TX was out before GRID Auto was released.
You're not a guinea pig, this is simply the way of life when using a new wheel on older PC games. Is this your first wheel for PC gaming?