When I look at the screenshots, the game looks like someone took Angband, or ZAngband and slammed a GUI on top of it. How much does the game play as a roguelike? Randomness? Unlimited amount of ego weapons/artifacts? A group of cyberdemons on level 90 turning your level 20 character into cinders [together with hours of play invested in it] :) ?

Definitely not a roguelike. You can save/reload, for one thing. I don't think recipes are random, either.

If you want a roguelike with randomly generated levels this is not for you.
What the f_ck is an ego weapon?
Monsters don't respawn (in the places I visited so far. I haven't finished it yet, so that may change at some point, I don't know), death is not permanent.