I think LoG is a great game (even though I haven't finished it yet) and considering both games are dungeon crawlers we could do a vs.

Skyrim

Open world and gameplay with great potential which can be unlocked through modding.

Legend of Grimlock

A tile based dungeon crawler with fun yet simple puzzles (not as complex as portal) coupled with great combat mechanics (imo much better than skyrim's). Sadly it is really short compared to skyrim. I've already completed half of the levels within 10 hours.

LoG's trailer:
http://www.youtube.com/watch?v=Ae-SmQnTtUU

Apples and Oranges.

Use this thread to discuss Grimrock; http://www.gamesas.com/topic/1396238-legend-of-grimrock/