Not sure if this is appropriate to mention, but Alex Diener, whom you may remember from his terrific DROD TCB let's play and current TSS let's play, is also in the midst of a Let's Play for Grimrock. I had never heard of the game until seeing it on his site after watching one of his TSS episodes. I started watching on a whim and now am completely sold and plan on getting the game.
His Grimrock Let's play can be found here:
https://www.youtube.com/playlist?list=PLBk6-z6v3pDLztyKb4gsKVCQNvOylaUbj
And if you haven't already seen his TSS Let's play, then you should probably give it a watch as well:
https://www.youtube.com/playlist?list=PLBk6-z6v3pDLK_aMkDe3qhnCUeVZ_stjT
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