Thanks for sharing these. Please keep them coming. I only knew Omnivide, Les Batards du Roi and Blindfolded [...] of these, so there was lots to dig in to. Some thoughts:

Undersave - Merged in Abstract Perdition (death metal)
Ungoliath - Shadows of the Eclipse (black metal)

These were decent.

Omnivide - Arise (for fans of Obscura)

I like this. Not mindblowing or anything, but it's a solid release.

Blindfolded and Led to the Woods - The Hardest Thing About Being God is that No One Believes Me (tech dm)

I am just never able to get in to these guys.

Les Batards du Roi - Les Chemins De L'exil (melodic bm)

This is the definition of mid. Not bad but very forgettable, and with little to no interest to hear it again.

Angrrsth - Zludnia (black metal)

I really liked this. By far the best on the list. Stupid name, but great black. Somewhat standard for the most part, but with enough interesting parts to make it stand out enough.