The art is very basic, but the presentation (animation and timing of cutscenes, special effects) is quite polished. The combination of cute and Lovecraftian always gets me. Great music, too.
I couldn't quite figure out what the ultimate goal was. I performed ceremonies for 3 nights but didn't really see any impact on the game world, other than changing the stats and removing villagers when sacrificed.
Also--just saying, but this village seems to have a population far too small to be conducting these kinds of sacrifices.