Somebody somewhere here gave a list that had "consider Phlebas" in it.

That particular book bored me to death, but from the same author / series I recently read "Player of Games" and "Use of Weapons" and I can't recommend (both) enough.

Dungeon Crawler, I started the series recently but got bored mid 3rd book. It is quite more denser than the first 2, and it feels like never ending.