Would be suited to a character that is from Feudal world (fervious)?

A Feudal World? Seems like Feral World would be a good bet for you. Feral World or Imperial World. Those two tend to cover the majority of planets that would be that way.

feral world was on my mind. I just wanted a confirmation that someone else agrees. Fervious is pretty feral when you look at the background info about the planet.

It is still feudal. It is written that they did something bad for Ad mechanicus and from that moment fervious is doomed to go to stone age.