I'm stuck by the abyss.

[Fortigurn]

I found the way to navigate successfully through the abyss (brilliant work on the part of Frictional, best puzzle ever). But I have to say although Tau was absolutely terrifying, it was also very frustrating. I spent half my time running or hiding, and I died twice in the effort to read all the data logs, which I never managed to complete. It's disappointing when the game stops you experiencing every part of it.