To each their own, but I don't think Grimrock 1 or 2 rise to the level of competence (if not outright genius) of older, truer real-time crawlers. I found Grimrock 2 specifically to be almost completely devoid of most of the things that make playing a 'crawler fun.
It is pretty to look at, for sure, and boy oh boy are there new and wide open areas for the player to practice dance lessons with the new enemies, but there is little reason for a dungeon crawler player to spend time with the game as it reveals itself very early and it is, architecturally if you will, heh, a huge step down from the enjoyable romp of Grimrock 1 (enjoyable enough, even if it is real-time, which I don't prefer).
It is pretty to look at, for sure, and boy oh boy are there new and wide open areas for the player to practice dance lessons with the new enemies, but there is little reason for a dungeon crawler player to spend time with the game as it reveals itself very early and it is, architecturally if you will, heh, a huge step down from the enjoyable romp of Grimrock 1 (enjoyable enough, even if it is real-time, which I don't prefer).